Details of the Researcher

PHOTO

Shigefusa Chichibu
Section
Institute of Multidisciplinary Research for Advanced Materials
Job title
Professor
Degree
  • 博士(工学)(慶應義塾大学)

  • 工学修士(慶應義塾大学)

Research History 10

  • 2007/02 - Present
    Tohoku University Institute of Multidisciplinary Research for Advanced Materials

  • 2001/10 - 2007/03
    科学技術振興機構 創造科学技術推進事業 中村不均一結晶プロジェクト不均一結晶評価グループリーダー

  • 1999/05 - 2007/01
    筑波大学 助教授 物理工学系

  • 1999/04 - 1999/04
    筑波大学 助教授 物質工学系

  • 1994/04 - 1999/03
    東京理科大学 嘱託助手 理工学部電気工学科

  • 1997/09 - 1998/09
    アメリカ合衆国・カリフォルニア州立大学サンタバーバラ校材料科学部 有任期助教授

  • 1997/02 - 1997/03
    ドイツ・国立ハーンマイトナー研究所(Festkorperphysik) 訪問研究員

  • 1991/04 - 1993/03
    日本学術振興会 特別研究員

  • 1988/04 - 1990/03
    株式会社東芝 総合研究所 電子部品研究所

  • 1999 -
    理化学研究所フォトダイナミクス研究センター非常勤研究員

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Education 3

  • Keio University Graduate School of Science and Technology

    1990/04 - 1994/03

  • Keio University Graduate School of Science and Technology

    1986/04 - 1988/03

  • Keio University Faculty of Science and Technology

    1982/04 - 1986/03

Committee Memberships 3

  • 日本学術振興会 第162委員会学術委員

    2011/04 - Present

  • 応用物理学会 論文賞審査委員

    2008/04 - 2009/03

  • 応用物理学会 論文賞審査委員

    2008/04 - 2009/03

Professional Memberships 1

  • 応用物理学会

Research Interests 5

  • 半導体量子光物性

  • 半導体電子工学

  • 半導体結晶光物性

  • Oxide Semiconductors

  • Nitride Semiconductors

Research Areas 4

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electric/electronic material engineering /

  • Nanotechnology/Materials / Crystal engineering /

  • Nanotechnology/Materials / Applied materials /

  • Natural sciences / Semiconductors, optical and atomic physics /

Awards 17

  1. Best Paper Award

    2025/06 22nd International Workshop on Junction Technology (IWJT2025) Characterization of vacancy-type defects in Mg- and N-implanted GaN by using a monoenergetic positron beam

  2. Editor's Pick

    2021/11 Applied Physics Letters Improved minority carrier lifetime in p-type GaN segments prepared by vacancy- guided redistribution of Mg

  3. 43rd JSAP Outstanding Paper Award

    2021/07 The Japan Society of Applied Physics Room temperature photoluminescence lifetime for the near-band-edge emission of epitaxial and ion-implanted GaN on GaN structures

  4. Best poster Award

    2019/07 The 13th International Conference on Nitride Semiconductors (ICNS-13) Evaluation of Subsequent Implantation Effect into Mg Implanted Region in GaN

  5. Best Paper Award

    2019/06 19th International Workshop on Junction Technology (IWJT2019), "Photoluminescence Studies of Sequentially Mg and H Ion-implanted GaN with Various Implantation Depths and Crystallographic Planes"

  6. 応用物理学会フェロー表彰

    2017/07 応用物理学会

  7. 矢上賞

    2016/10 慶應義塾大学理工学部

  8. 平成22年度科学技術分野の文部科学大臣表彰科学技術賞(研究部門)

    2010/04/13 文部科学省 インジウムを含む窒化物半導体混晶の光物性の研究

  9. 第41回(平成21年)市村学術賞 功績賞

    2009/04/28 財団法人新技術開発財団 Inを含む窒化物半導体混晶の光物性研究

  10. 第7回 (2008年) ドコモ・モバイル・サイエンス賞 基礎科学部門優秀賞 「非視認通信および表示・照明用III族窒化物半導体の物性研究」

    2008/10 NPO法人 モバイル・コミュニケーション・ファンド

  11. 2008年度 応用物理学会論文賞「JJAP論文賞」

    2008/09 応用物理学会 論文名 Continuous-Wave Operation of m-Plane InGaN Multiple Quantum Well Laser Diodes

  12. 第7回 丸文研究奨励賞(平成15年度) III窒化物半導体の励起子構造および量子構造発光素子における局在励起子発光過程の解明」

    2004

  13. 平成9年度 矢崎学術賞奨励賞

    1997

  14. 第1回応用物理学会講演奨励賞

    1996

  15. 平成8年日本MRSシンポジウムシンポジウムR奨励賞

    1996

  16. 第8回安藤博記念学術奨励賞

    1994

  17. 平成5年電気学会電子情報システム部門大会優秀論文発表賞

    1994

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Papers 554

  1. Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride Peer-reviewed

    Kohei Shima, Tin S. Cheng, Christopher J. Mellor, Peter H. Beton, Christine Elias, Pierre Valvin, Bernard Gil, Guillaume Cassabois, Sergei V. Novikov, Shigefusa F. Chichibu

    Scientific Reports 14 (1) 169 1-8 2024/01/02

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41598-023-50502-9  

    eISSN: 2045-2322

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    Abstract Cathodoluminescence (CL) spectroscopy is a suitable technique for studying the luminescent properties of optoelectronic materials because CL has no limitation on the excitable bandgap energy and eliminates ambiguous signals due to simple light scattering and resonant Raman scattering potentially involved in the photoluminescence spectra. However, direct CL measurements of atomically thin two-dimensional materials have been difficult due to the small excitation volume that interacts with high-energy electron beams. Herein, distinct CL signals from a monolayer hexagonal BN (hBN), namely mBN, epitaxial film grown on a graphite substrate are shown by using a CL system capable of large-area and surface-sensitive excitation. Spatially resolved CL spectra at 13 K exhibited a predominant 5.5-eV emission band, which has been ascribed to originate from multilayered aggregates of hBN, markedly at thicker areas formed on the step edges of the substrate. Conversely, a faint peak at 6.04 ± 0.01 eV was routinely observed from atomically flat areas, which is assigned as being due to the recombination of phonon-assisted direct excitons of mBN. The CL results support the transition from indirect bandgap in bulk hBN to direct bandgap in mBN. The results also encourage one to elucidate emission properties of other low-dimensional materials by using the present CL configuration.

  2. Operation-induced degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light-emitting diodes fabricated on a sapphire substrate International-journal Invited Peer-reviewed

    S. F. Chichibu, K. Nagata, M. Oya, T. Kasuya, K. Okuno, H. Ishiguro, Y. Saito, T. Takeuchi, K. Shima

    Applied Physics Letters 122 (20) 201105 1-7 2023/05/17

    Publisher: AIP Publishing

    DOI: 10.1063/5.0147984  

    ISSN: 0003-6951

    eISSN: 1077-3118

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    Abstract Degradation mechanisms of 275-nm-band AlxGa1-xN multiple quantum well deep-ultraviolet light-emitting diodes fabricated on a (0001) sapphire substrate were investigated under hard operation conditions with the current of 350mA and the junction temperature of 105 C. The optical output power (Po) initially decreased by about 20% within the operating time less than 102 h and then gradually decreased to about 60% by 484 h. For elucidating the causes for the initial and subsequent degradations, complementary electrical, time-resolved photoluminescence (TRPL), and impurity characterizations were carried out making a connection with the energy band profiles. Because the degradation of the wells was less significant than the Po reduction, the initial degradation is attributed essentially to the decrease in carrier injection efficiency (ginjection), not in internal quantum efficiency of the wells, most likely due to depassivation of initially H-passivated preexisting nonradiative recombination centers (NRCs) in a Mg-doped p-type Al0.85Ga0.15N electron blocking layer. The principal cause for the subsequent Po reduction until 484 h is attributed to further decrease in ginjection due to the appearance of certain current bypasses in addition to continuous depassivation of the NRCs in p-type AlxGa1-xN layers. According to our database on the species of vacancy-type defects acting as NRCs in GaN and AlN, which have been identified using the combination of positron annihilation and TRPL measurements, vacancy clusters comprised of a cation vacancy (VIII) and nitrogen vacancies (VN), such as VIIIðVNÞ24, are the most suspicious origins of the NRCs in Mg-doped p-type AlxGa1-xN layers.

  3. Impacts of homoepitaxial AlN thickness on the qualities of AlGaN QWs fabricated on the face-to-face annealed sputter-deposited AlN templates International-journal Peer-reviewed

    Ryota Akaike, Kenjiro Uesugi, Kohei Shima, Shigefusa F. Chichibu, Akira Uedono, Takao Nakamura, Hideto Miyake

    Applied Physics Express 18 (6) 065503 1-5 2025/06/30

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/ade2b7  

    ISSN: 1882-0778

    eISSN: 1882-0786

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    Abstract AlGaN quantum wells (QWs) emitting at 265 nm were fabricated on face-to-face annealed sputter-deposited AlN (FFA Sp-AlN) templates with n-AlGaN and different homoepitaxial AlN thicknesses (200–2000 nm) by metalorganic vapor phase epitaxy (MOVPE). Thicker MOVPE-AlN led to higher dislocation densities. The type and concentration of vacancies in n-AlGaN, as well as the photoluminescence efficiencies and time-resolved photoluminescence lifetimes of the QWs were nearly unchanged regardless of the MOVPE-AlN thickness, suggesting nearly identical internal quantum efficiencies. The results prove high-quality AlGaN QW growth with only 200 nm thick MOVPE-AlN, resulting in reduced total thickness of AlN by using FFA Sp-AlN.

  4. Impacts of ultra-high-pressure annealing on undoped and ion-implanted GaN studied by photoluminescence measurements International-journal Peer-reviewed

    K. Shima, T. Narita, A. Uedono, M. Bockowski, J. Suda, T. Kachi, S. F. Chichibu

    Journal of Applied Physics 137 (23) 235702 1-12 2025/06/18

    Publisher: AIP Publishing

    DOI: 10.1063/5.0266700  

    ISSN: 0021-8979

    eISSN: 1089-7550

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    Selective-area doping of GaN using ion implantation (I/I) followed by ultra-high-pressure annealing (UHPA) under 1-GPa-N2 has emerged as a promising technique for GaN power devices. In this article, the impacts of UHPA on the midgap recombination centers (MGRCs) in undoped, Si-implanted, Mg-implanted, and Mg/N-implanted GaN epitaxial layers are described based on the results of photoluminescence (PL) and time-resolved PL measurements. For undoped GaN, PL lifetimes at 300 K for the near-band-edge emission decreased with increasing the annealing temperature (Ta), indicating higher Ta increased the concentration of MGRCs. In contrast, for I/I-GaN, PL lifetimes or PL intensities at 300 K for the near-band-edge emission increased with increasing Ta, indicating higher Ta decreased the concentration of MGRCs originating from the I/I-induced vacancy-type defects comprising Ga and N vacancies [e.g., (VGaVN)3]. Nevertheless, MGRC concentrations in I/I-GaN after UHPA remained several orders of magnitude higher than in undoped GaN. Additional N-I/I onto Mg-implanted GaN followed by UHPA at Ta = 1480 °C enhanced the activation of a Mg acceptor substituted on a Ga site (MgGa) and decreased the concentration of MGRCs. For Mg- and Mg/N-implanted GaN, the progressive activation of MgGa acceptors with increasing Ta was confirmed. However, the PL lifetimes for Mg- and Mg/N-implanted GaN with Mg concentrations higher than 1 × 1018 cm−3 were limited to shorter than 1 ps. To fabricate reliable p-contacts and electron inversion layers using Mg- or Mg/N-I/I combined with UHPA, it is crucial to eliminate or etch away residual defective layers near the surface, which limits the minority carrier lifetime to below 1 ps.

  5. Roles of Al-vacancy complexes on the luminescence spectra of low dislocation density Si-doped AlN grown by halide vapor phase epitaxy International-journal Peer-reviewed

    Chichibu, S.F., Kikuchi, K., Shima, K., Moody, B., Mita, S., Collazo, R., Sitar, Z., Kumagai, Y., Ishibashi, S., Uedono, A.

    Applied Physics Letters 126 (11) 111905 1-7 2025/03/18

    DOI: 10.1063/5.0252149  

    ISSN: 0003-6951

  6. Impacts of vacancy complexes on the room-temperature photoluminescence lifetimes of state-of-the-art GaN substrates, epitaxial layers, and Mg-implanted layers International-journal Peer-reviewed

    Shigefusa F. Chichibu, Kohei Shima, Akira Uedono, Shoji Ishibashi, Hiroko Iguchi, Tetsuo Narita, Keita Kataoka, Ryo Tanaka, Shinya Takashima, Katsunori Ueno, Masaharu Edo, Hirotaka Watanabe, Atsushi Tanaka, Yoshio Honda, Jun Suda, Hiroshi Amano, Tetsu Kachi, Toshihide Nabatame, Yoshihiro Irokawa, Yasuo Koide

    Journal of Applied Physics 135 (18) 185701 1-20 2024/05/08

    Publisher: AIP Publishing

    DOI: 10.1063/5.0201931  

    ISSN: 0021-8979

    eISSN: 1089-7550

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    For rooting the development of GaN-based optoelectronic devices, understanding the roles of midgap recombination centers (MGRCs), namely, nonradiative recombination centers and deep-state radiative recombination centers, on the carrier recombination dynamics is an essential task. By using the combination of time-resolved photoluminescence and positron annihilation spectroscopy (PAS) measurements, the origins of major MGRCs in the state-of-the-art GaN epilayers, bulk crystals, and Mg-implanted layers were identified, and their concentrations were quantified for deriving the capture coefficients of minority carriers. In this article, potential standardization of the room-temperature photoluminescence lifetime for the near-band-edge emission (τPLRT) as the concentration of major MGRCs well below the detection limit of PAS is proposed. For n-GaN substrates and epilayers grown from the vapor phase, τPLRT was limited by the concentration of carbon on N sites or divacancies comprising a Ga vacancy (VGa) and a N vacancy (VN), [VGaVN], when carbon concentration was higher or lower, respectively, than approximately 1016 cm−3. Here, carbon and VGaVN act as major deep-state radiative and nonradiative recombination centers, respectively, while major MGRCs in bulk GaN crystals were identified as VGa(VN)3 vacancy clusters in Na-flux GaN and VGa or VGaVN buried by a hydrogen and/or VGa decorated with oxygen on N sites, VGa(ON)3–4, in ammonothermal GaN. The values of τPLRT in n-GaN samples are compared with those of p-GaN, in which τPLRT was limited by the concentration of VGa(VN)2 in Mg-doped epilayers and by the concentrations of VGaVN and (VGaVN)3 in Mg-implanted GaN right after the implantation and after appropriate activation annealing, respectively.

  7. Improved midgap recombination lifetimes in GaN crystals grown by the low-pressure acidic ammonothermal method International-journal Peer-reviewed

    K. Shima, K. Kurimoto, Q. Bao, Y. Mikawa, M. Saito, D. Tomida, A. Uedono, S. Ishibashi, T. Ishiguro, S. F. Chichibu

    Applied Physics Letters 124 (18) 181103 1-6 2024/04/29

    Publisher: AIP Publishing

    DOI: 10.1063/5.0208853  

    ISSN: 0003-6951

    eISSN: 1077-3118

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    To investigate the carrier recombination processes in GaN crystals grown by the low-pressure acidic ammonothermal (LPAAT) method, the photoluminescence (PL) spectra and PL lifetimes of LPAAT GaN crystals grown on acidic ammonothermal (AAT) GaN seed crystals were correlated with the growth polarity and species/concentration of point defects. The PL spectra of LPAAT GaN grown toward the (0001¯) direction (−c region), which provided the highest growth rate, exhibited a predominant near-band edge (NBE) emission. Neither bandgap narrowing nor Burstein–Moss shifts due to high concentration residual impurities were observed in the NBE emissions, indicating higher purity than the previously reported AAT GaN crystals. In addition, strain-induced energy shift or energy broadening of excitonic emission peaks was not observed, indicating excellent crystal coherency. Because of the reduced concentration of midgap recombination centers, a record-long room-temperature PL lifetime for the NBE emission of ammonothermal GaN (40 ps) was obtained from the −c region. Meanwhile, the PL spectra also exhibited the yellow and blue luminescence bands originating from particular deep-state radiative recombination centers. The major vacancy-type defects acting as midgap recombination centers are identified as vacancy complexes comprising a Ga vacancy (VGa) and a few N vacancies (VN), namely, VGa(VN)n buried by H and/or O, where n is an integer. Further reduction of such defect complexes will allow less compensated stable carrier concentration in the LPAAT GaN crystals.

  8. Vacancy‐Type Defects and Their Trapping/Detrapping of Charge Carriers in Ion‐Implanted GaN Studied by Positron Annihilation Peer-reviewed

    Akira Uedono, Ryo Tanaka, Shinya Takashima, Katsunori Ueno, Masaharu Edo, Kohei Shima, Shigefusa F. Chichibu, Jun Uzuhashi, Tadakatsu Ohkubo, Shoji Ishibashi, Kacper Sierakowski, Michal Bockowski

    physica status solidi (b) 261 2400060 1-10 2024/02/29

    Publisher: Wiley

    DOI: 10.1002/pssb.202400060  

    ISSN: 0370-1972

    eISSN: 1521-3951

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    Annealing behaviors of vacancy‐type defects in ion‐implanted GaN are studied by positron annihilation. Mg+ and N+ ions are implanted to obtain 700 nm deep box profiles with Mg and N concentrations of 1 × 1018 cm−3, and the samples are annealed using an ultrahigh‐pressure annealing system. For as‐implanted samples, the major defect species is identified as Ga‐vacancy (VGa)‐type defects. For N‐implanted GaN, the size of the vacancies increases as the annealing temperature increases up to 1100 °C and then shrank above 1200 °C. This behavior is attributed to recombinations between N‐vacancy (VN)‐type defects and excess N. For Mg‐implanted GaN, the major defect species after annealing above 1000 °C is vacancy clusters such as (VGaVN)3. Some of them act as nonradiative recombination centers for blue and ultraviolet luminescence. Their energy levels corresponding to the transition from positive to neutral are located between 2.6 eV above the valence band maximum and the conduction band minimum. The thermal activation process of electron detrapping from the vacancy clusters is also studied. For Mg‐implanted GaN, one of the major secondary defects is collapsed vacancy disks forming dislocation loops. They are eliminated by additional N implantation, which is associated with vacancy agglomerations under the annealing in VGa‐rich condition.

  9. Steady-state and dynamic characteristics of deep UV luminescence in rock salt-structured MgxZn1-xO Peer-reviewed

    T. Onuma, K. Kudo, M. Ono, W. Kosaka, K. Shima, K. Ishii, K. Kaneko, Y, Ota, T. Yamaguchi, K. Kojima, S. Fujita, S. F. Chichibu, T. Honda

    Journal of Applied Physics (2023) 134 (2) 025102 1-11 2023/07/13

    Publisher: AIP Publishing

    DOI: 10.1063/5.0155269  

    ISSN: 0021-8979

    eISSN: 1089-7550

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    Temperature-dependent cathodoluminescence spectra were measured for rock salt-structured MgxZn1−xO films with x = 0.95–0.61. The Mg0.95Zn0.05O film exhibited the shortest deep UV peak wavelength of 199 nm (6.24 eV) at 6 K. Relatively high equivalent internal quantum efficiencies of 0.9%–11% were obtained. The Tauc plots, which were obtained from temperature-dependent optical transmittance measurements, exhibited large Stokes-like shifts of 0.7–0.9 eV at 6–300 K. Time-resolved photoluminescence (PL) signals at 7 K exhibited fast and slow decay components. The fast decay component had PL lifetimes of 2.59–3.08 ns, and the slow decay component far exceeded the measurement time range of 12.5 ns. The fast decay constant reflected the transfer lifetime of the photoexcited carriers to certain trapping centers. These centers were tentatively ascribed to Zn-related isoelectronic trapped-hole centers and may be a cause of the large Stokes-like shifts. The signals at 300 K exhibited very short PL lifetimes of 120–180 ps. The PL lifetimes were mainly attributed to the nonradiative recombination lifetime. Simultaneous decreases in the Zn-related isoelectronic trapped-hole centers and the nonradiative recombination centers were found to be necessary to improve the DUV emission properties of RS-MgxZn1−xO films.

  10. Temporary and spatially resolved luminescence studies of p-GaN segments fabricated by vacancy-guided redistribution of Mg using sequential ion implantation of Mg and N International-journal Peer-reviewed

    K. Shima, R. Tanaka, S. Takashima, K. Ueno, M. Edo, A. Uedono, S. Ishibashi, and, S. F. Chichibu

    Proceedings of IWJT2023: IEEE Xplore Digital Library (2023) 1-4 2023/07/12

    Publisher: IEEE

    DOI: 10. 23919/IWJT59028.2023.10175182  

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    Extended Abstract of the 21st International Workshop on Junction Technology (IWJT2023) : pp. S3-1 (2023) ISBN:978-4-86348-807-6

  11. Polishing and etching damages of ZnO single crystals studied using time-resolved photoluminescence spectroscopy Peer-reviewed

    Kasuya, T., Shima, K., Chichibu, S.F.

    Journal of Applied Physics 134 (2) 025302 1-10 2023/07/10

    DOI: 10.1063/5.0149404  

    ISSN: 0021-8979 1089-7550

  12. Band alignment and quality of Al0.6Ga0.4N/AlN films grown on diamond (111) substrate by remote N-plasma assisted MBE International-journal Peer-reviewed

    Shozo Kono, Kohei Shima, Shigefusa F. Chichibu, Masaru Shimomura, Taisuke Kageura, Hiroshi Kawarada

    Diamond and Related Materials 136 (6) 110013 1-17 2023/05/12

    Publisher: Elsevier BV

    DOI: 10.1016/j.diamond.2023.110013  

    ISSN: 0925-9635

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    Abstract In an attempt to fabricate an n-type Al0.6Ga0.4N film on a p-type diamond (111) substrate, the technique of remote N-plasma assisted MBE was used. Thin AlN layers were grown on boron-doped p-type diamonds to examine band alignment. Al0.6Ga0.4N layers were grown on the AlN layer. The techniques of RHEED, AFM, XPS, XPD, and Hall-measurements were used for the characterization. It was found that the AlN layers are not pure wurtzite but mixed possibly with amorphous Al2O3 region and that the band alignments are favorably modified by the presence of possible amorphous Al2O3. It was further found that the presence of ~1ML of Si on the substrate diamond surface gives nearly type-I band alignment of amorphous Al2O3 to the substrate. The Al0.6Ga0.4N layers were found in a form of ~2 nm size grains surrounded possibly by amorphous Al2O3/Ga2O3 regions. The Al0.6Ga0.4N layers were found to be n-type conductive with a very low mobility and the conductivity seems to be derived by thin metallic layers that possibly surrounding Al0.6Ga0.4N grains.

  13. Annealing properties of vacancy-type defects in ion implanted GaN during ultra-high-pressure annealing studied by using a monoenergetic positron beam International-journal Invited Peer-reviewed

    Akira Uedono, Hideki Sakurai, Jun Uzuhashi, Tetsuo Narita, Kacper Sierakowski, Shoji Ishibashi, Shigefusa F. Chichibu, Michal Bockowski, Jun Suda, Tadakatsu Ohokubo, Nobuyuki Ikarashi, Kazuhiro Hono, Tetsu Kachi

    Proceedings of SPIE2023,Gallium Nitride Materials and Devices XVIII 1-8 2023/03/15

    Publisher: SPIE

    DOI: 10.1117/12.2646233  

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    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2023, OPTO, Gallium Nitride Materials and Devices XVIII (OE107), San Francisco, USA, Jan.30-Feb.2, (2023), No.12421-25 (Invited-oral)

  14. Temperature Field, Flow Field, and Temporal Fluctuations Thereof in Ammonothermal Growth of Bulk GaN—Transition from Dissolution Stage to Growth Stage Conditions Peer-reviewed

    Schimmel, S., Tomida, D., Honda, Y., Amano, H., Ishiguro, T., Chichibu, S.F.

    Materials 16 (5) 2016 1-27 2023/02/28

    DOI: 10.3390/ma16052016  

    ISSN: 1996-1944

  15. Room-temperature nonradiative recombination lifetimes in c-plane Al1-xInxN epilayers nearly and modestly lattice-matched to GaN (0.11 ≤ x ≤ 0.21) Peer-reviewed

    Li, L.Y., Shima, K., Chichibu, S.F., Yamanaka, M., Egawa, T., Miyoshi, M., Takeuchi, T., Ishibashi, S., Uedono, A.

    Journal of Applied Physics 132 (16) 163102 1-10 2022/10/25

    DOI: 10.1063/5.0106540  

    ISSN: 0021-8979 1089-7550

  16. High-Energy Computed Tomography as a Prospective Tool for In Situ Monitoring of Mass Transfer Processes inside High-Pressure Reactors—A Case Study on Ammonothermal Bulk Crystal Growth of Nitrides including GaN Peer-reviewed

    Schimmel, S., Salamon, M., Tomida, D., Honda, Y., Amano, H., Neumeier, S., Ishiguro, T., Chichibu, S.F.

    Materials 15 (17) 6165 1-17 2022/09/05

    DOI: 10.3390/ma15176165  

    ISSN: 1996-1944

  17. Weak metastability of AlxGa1−xN (x = 13/24, 15/24, 17/24) shown by analyzing AlGaN grown on AlN with dense macrosteps International-journal Peer-reviewed

    Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Hideki Sako, Ai Hashimoto, Ryuichi Sugie, Yoshio Honda, Hiroshi Amano, Kazunobu Kojima, Shigefusa F. Chichibu

    Applied Physics Express 15 (7) 075505 1-5 2022/07/01

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/ac79a1  

    ISSN: 1882-0778

    eISSN: 1882-0786

  18. Recombination dynamics of indirect excitons in hexagonal BN epilayers containing polytypic segments grown by chemical vapor deposition using carbon-free precursors International-journal Peer-reviewed

    S. F. Chichibu, K. Shima, K. Kikuchi, N. Umehara, K. Takiguchi, Y. Ishitani, K. Hara

    Applied Physics Letters 120 (23) 231904 1-7 2022/06/06

    Publisher: AIP Publishing

    DOI: 10.1063/5.0090431  

    ISSN: 0003-6951

    eISSN: 1077-3118

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    Hexagonal (h) BN is a semiconductor that crystallizes in layers of a two-dimensional honeycomb structure. Since hBN exhibits high quantum efficiency (QE) near-band edge emission at around 5.8 eV in spite of the indirect bandgap, hBN has a potential for the use in deep-ultraviolet light emitters. For elucidating the emission dynamics of indirect excitons (iXs) in hBN, spatially and temporally resolved luminescence measurements were carried out on hBN epilayers grown using carbon-free precursors. In addition to major [Formula: see text]m-side flat-topped (0001) hBN columnar grains, sub-[Formula: see text]m-scale polytypic segments were identified, which were likely formed by certain growth instabilities. The hBN domains exhibited predominant emissions of phonon-assisted fundamental iXs at 5.7–5.9 eV and a less-pronounced 4.0-eV emission band. The photoluminescence lifetime ([Formula: see text]) for the iX emissions was 54 ps, which most likely represents the midgap recombination lifetime ([Formula: see text]) for an iX reservoir. Because [Formula: see text] did not change while the cathodoluminescence (CL) intensity increased with temperature above 100 K, both the immobile character of iXs and strong exciton–phonon interaction seem significant for procreating the high QE. The CL intensity and [Formula: see text] of the 5.5 eV band monotonically decreased with temperature, indicating that [Formula: see text] represents [Formula: see text], most probably a nonradiative lifetime, around the real states. Equally significant emissions at 6.035 eV at 12 K and 6.0–6.1 eV at 300 K were observed from the polytypic segments, most probably graphitic bernal BN, which also exhibited negligible thermal quenching property.

  19. Precise determination of deformation potentials in InGaN alloy material in semipolar and nonpolar InGaN quantum wells Peer-reviewed

    Shigeta Sakai, Kazunobu Kojima, Shigefusa F. Chichibu, Atsushi A. Yamaguchi

    Japanese Journal of Applied Physics 61 (6) 061003 1-6 2022/06/01

    Publisher: IOP Publishing

    DOI: 10.35848/1347-4065/ac62e4  

    ISSN: 0021-4922

    eISSN: 1347-4065

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    Abstract Deformation potentials of InGaN have been precisely determined in order to make a reliable prediction of optical gain characteristics in semipolar and nonpolar InGaN quantum wells (QWs) laser didoes (LDs). Since the optical polarization properties in semipolar and nonpolar InGaN QWs are very sensitive to the values of deformation potentials, all the reported data on the optical polarization properties have been theoretically analyzed based on the k·p perturbation theory in this study, and we have made a precise determination of the deformation potentials’ set. In addition, optical gain characteristics of InGaN QWs on GaN substrates with arbitrary substrate orientations have been theoretically calculated by using the determined deformation potentials’ set. It is found that low-angle semipolar substrate orientation (θ ∼ 45°) is very promising for low-cost and high-performance green LDs with cleaved-facet cavity mirrors.

  20. Effect of Ultra-High-Pressure Annealing on Defect Reactions in Ion-Implanted GaN Studied by Positron Annihilation Peer-reviewed

    Uedono, A., Sakurai, H., Bockowski, M., Suda, J., Ikarashi, N., Kachi, T., Uzuhashi, J., Ohkubo, T., Hono, K., Narita, T., Sierakowski, K., Ishibashi, S., Chichibu, S.F.

    Physica Status Solidi B Basic Research 259 (10) 2200183 1-12 2022/05/20

    Publisher: Wiley

    DOI: 10.1002/pssb.202200183  

    ISSN: 0370-1972 1521-3951

    eISSN: 1521-3951

  21. Low-pressure acidic ammonothermal growth of 2-inch-diameter nearly bowing-free bulk GaN crystals Peer-reviewed

    Kouhei kurimoto, Quanxi Bao, Yutaka Mikawa, Kohei Shima, Tohru Ishiguro, Shigefusa F. Chichibu

    Applied Physics Express 15 (5) 055504 1-4 2022/05/13

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/ac67fc  

    ISSN: 1882-0778

    eISSN: 1882-0786

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    Abstract Seeded growth of 2-inch-diameter GaN crystals via low-pressure (~100 MPa) acidic ammonothermal method is demonstrated. Nearly bowing- and mosaic-free GaN crystals exhibiting the full-width at half-maximum values for the 0002 x-ray rocking curves below 20 arcsec were achieved on high lattice coherency c-plane SCAATTM seeds with gross dislocation densities in the order of 104 cm-2. The photoluminescence spectra of the grown crystals exhibited a predominant near-band-edge emission at 295 K, of which intensity was one order of magnitude higher than the characteristic deep-state emission bands. A nearly bowing-free 60 mm × 60 mm c-plane GaN crystal was eventually obtained.

  22. Impacts of Si-doping on vacancy complex formation and their influences on deep ultraviolet luminescence dynamics in AlxGa1−xN films and multiple quantum wells grown by metalorganic vapor phase epitaxy Peer-reviewed

    Chichibu, S.F., Miyake, H., Uedono, A.

    Japanese Journal of Applied Physics 61 (5) 050501 1-14 2022/04/27

    Publisher: IOP Publishing

    DOI: 10.35848/1347-4065/ac46b1  

    ISSN: 0021-4922 1347-4065

    eISSN: 1347-4065

  23. Dual-peak electroluminescence spectra generated from Al n/12Ga1- n/12N ( n = 2, 3, 4) for AlGaN-based LEDs with nonflat quantum wells Peer-reviewed

    Nagasawa, Y., Hirano, A., Ippommatsu, M., Kojima, K., Chichibu, S.F., Honda, Y., Amano, H.

    Journal of Physics D Applied Physics 55 (25) 255102 1-11 2022/03/29

    DOI: 10.1088/1361-6463/ac5d03  

    ISSN: 0022-3727 1361-6463

  24. High-speed solar-blind optical wireless communication enabled by DUV LED

    Yuki Yoshida, Kazunobu Kojima, Masaki Shiraiwa, Atsushi Kanno, Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Naokatsu Yamamoto, Shigefusa F. Chichibu, Yoshinari Awaji

    Light-Emitting Devices, Materials, and Applications XXVI 2022/03/09

    Publisher: SPIE

    DOI: 10.1117/12.2608459  

  25. Reactive RF magnetron sputtering epitaxy of NiO thin films on (0001) sapphire and (100) MgO substrates Peer-reviewed

    Nishimoto, K., Sugiyama, M., Shima, K., Chichibu, S.F.

    Japanese Journal of Applied Physics 61 (2) 025505-1-5 2022/02/24

    Publisher: IOP Publishing

    DOI: 10.35848/1347-4065/ac4392  

    ISSN: 0021-4922 1347-4065

    eISSN: 1347-4065

  26. Enhanced quantum efficiency of a self-organized silica mixed red phosphor CaAlSiN3:Eu Peer-reviewed

    Oishi, M., Moriga, T., Kai, Y., Takatori, A., Kojima, K., Shiomi, S., Ohara, K., Fujishiro, F., Shih, S.-J., Chichibu, S.F.

    Journal of Solid State Chemistry 309 122968 1-8 2022/02

    Publisher: Elsevier BV

    DOI: 10.1016/j.jssc.2022.122968  

    ISSN: 0022-4596 1095-726X

  27. Characterization of semiconductor crystals based on omnidirectional photoluminescence (ODPL) spectroscopy Invited

    Kazunobu Kojima, Kohei Shima, Shigefusa F. Chichibu

    48 (4) 1-9 2022/01

  28. Vacancy complexes acting as midgap recombination centers in (Al,Ga)N semiconductors International-journal Invited Peer-reviewed

    S. F. Chichibu, K. Shima, K. Kojima, S. Ishibashi, A. Uedono

    Proceedings of IWJT2021, IEEE Xplore Digital Library 1-4 2021/11/06

    Publisher: IEEE

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    20th International Workshop on Junction Technology (IWJT2021), June 10-11 (2021), No.KN-4, On-line Conference (Plenary)

  29. Improved minority carrier lifetime in p-type GaN segments prepared by vacancy-guided redistribution of Mg International-journal Invited Peer-reviewed

    Shima, K., Kojima, K., Chichibu, S.F., Tanaka, R., Takashima, S., Ueno, K., Edo, M., Uedono, A., Ishibashi, S.

    Applied Physics Letters 119 (18) 182106-182106 2021/11/03

    Publisher: AIP Publishing

    DOI: 10.1063/5.0066347  

    ISSN: 0003-6951

    eISSN: 1077-3118

  30. Dopant activation process in Mg-implanted GaN studied by monoenergetic positron beam Peer-reviewed

    Akira Uedono, Ryo Tanaka, Shinya Takashima, Katsunori Ueno, Masaharu Edo, Kohei Shima, Kazunobu Kojima, Shigefusa F. Chichibu, Shoji Ishibashi

    Scientific Reports 11 (1) 20660 1-8 2021/10/19

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41598-021-00102-2  

    eISSN: 2045-2322

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    <title>Abstract</title>A process for activating Mg and its relationship with vacancy-type defects in Mg-implanted GaN were studied by positron annihilation spectroscopy. Mg+ ions were implanted with an energy of 10 keV, and the Mg concentration in the subsurface region (≤ 50 nm) was on the order of 1019 cm−3. After the Mg-implantation, N+ ions were implanted to provide a 300-nm-deep box profile with a N concentration of 6 × 1018 cm−3. From capacitance–voltage measurements, the sequential implantation of N was found to enhance the activation of Mg. For N-implanted GaN before annealing, the major defect species were determined to Ga-vacancy related defects such as divacancy. After annealing below 1000 °C, the clustering of vacancies was observed. Above 1200 °C annealing, however, the size of the vacancies started to decrease, which was due to recombinations of vacancy clusters and excess N atoms in the damaged region. The suppression of vacancy clustering by sequential N-implantation in Mg-implanted GaN was attributed to the origin of the enhancement of the Mg activation.

  31. Effective neutron detection using vertical-type BGaN diodes Peer-reviewed

    Takayuki Nakano, Ken Mochizuki, Takuya Arikawa, Hisaya Nakagawa, Shigeyoshi Usami, Yoshio Honda, Hiroshi Amano, Adrian Vogt, Sebastian Schütt, Michael Fiederle, Kazunobu Kojima, Shigefusa F. Chichibu, Yoku Inoue, Toru Aoki

    Journal of Applied Physics 130 (12) 124501-1-10 2021/09/22

    Publisher: AIP Publishing

    DOI: 10.1063/5.0051053  

    ISSN: 0021-8979

    eISSN: 1089-7550

  32. Discrete wavelengths observed in electroluminescence originating from Al1/2Ga1/2N and Al1/3Ga2/3N created in nonflat AlGaN quantum wells Peer-reviewed

    Yosuke Nagasawa, Kazunobu Kojima, Akira Hirano, Hideki Sako, Ai Hashimoto, Ryuichi Sugie, Masamichi Ippommatsu, Yoshio Honda, Hiroshi Amano, Shigefusa F Chichibu

    Journal of Physics D: Applied Physics 54 (48) 485107-1-10 2021/09/07

    Publisher: IOP Publishing

    DOI: 10.1088/1361-6463/ac2065  

    ISSN: 0022-3727

    eISSN: 1361-6463

  33. Reduced nonradiative recombination rates in c-plane Al0.83In0.17N films grown on a nearly lattice-matched GaN substrate by metalorganic vapor phase epitaxy Peer-reviewed

    L. Y. Li, K. Shima, M. Yamanaka, K. Kojima, T. Egawa, A. Uedono, S. Ishibashi, T, Takeuchi, M. Miyoshi, S. F. Chichibu

    Applied Physics Letters 119 (9) 091105 1-6 2021/08/31

    Publisher: AIP Publishing

    DOI: 10.1063/5.0066263  

    ISSN: 0003-6951

    eISSN: 1077-3118

  34. Facile method for the synthesis of zinc- or magnesium-doped gallium nitride powders from gallium metal International-journal International-coauthorship Peer-reviewed

    Daisuke Tomida, Quanxi Bao, Makoto Saito, Kouhei Kurimoto, Kazunobu Kojima, Kun Qiao, Tohru Ishiguro, Shigefusa F. Chichibu

    Journal of Crystal Growth 570 126190-126190 2021/05/21

    Publisher: Elsevier BV

    DOI: 10.1016/j.jcrysgro.2021.126190  

    ISSN: 0022-0248

  35. Electrical degradation and recovery of NiO/ZnO visible-light-transparent flexible solar cells

    Kim, J., Kato, N., Sugiyama, M., Chichibu, S.F.

    Japanese Journal of Applied Physics 60 (6) 064001 1-4 2021/05/20

    DOI: 10.35848/1347-4065/abff3c  

    ISSN: 0021-4922 1347-4065

  36. Discrete AlN mole fraction of n/12 (n=4-8) in Ga-rich zones functioning as electron pathways created in nonflat AlGaN layers grown on high-miscut sapphire substrates Peer-reviewed

    Y. Nagasawa, A. Hirano, M. Ippommatsu, H. Sako, A. Hashimoto, R. Sugie, Y. Honda, H. Amano, I. Akasaki, K. Kojima, S. F. Chichibu

    Journal of Applied Physics 129 (16) 164503 1--9 2021/04/26

    Publisher: AIP Publishing

    DOI: 10.1063/5.0042036  

    ISSN: 0021-8979

    eISSN: 1089-7550

  37. Numerical simulation of ammonothermal crystal growth of GaN-current state, challenges, and prospects Peer-reviewed

    Schimmel, S., Tomida, D., Honda, Y., Chichibu, S., Amano, H., Ishiguro, T.

    Crystals 11 (4) 356 1-30 2021/03/30

    Publisher: MDPI AG

    DOI: 10.3390/cryst11040356  

    ISSN: 2073-4352

    eISSN: 2073-4352

  38. Boundary conditions for simulations of fluid flow and temperature field during ammonothermal crystal growth—a machine-learning assisted study of autoclave wall temperature distribution Peer-reviewed

    Schimmel, S., Tomida, D., Honda, Y., Chichibu, S., Amano, H., Saito, M., Bao, Q., Ishiguro, T.

    Crystals 11 (3) 254 -1-27 2021/03/04

    Publisher: MDPI AG

    DOI: 10.3390/cryst11030254  

    ISSN: 2073-4352

    eISSN: 2073-4352

  39. Innovative Techniques for Fast Growth and Fabrication of High Purity GaN Single Crystals

    Daisuke Tomida, Makoto Saito, Quanxi Bao, Tohru Ishiguro, Shigefusa F. Chichibu

    Springer Series in Materials Science 304 65-76 2021

    Publisher: Springer Science and Business Media Deutschland GmbH

    DOI: 10.1007/978-3-030-56305-9_5  

    ISSN: 2196-2812 0933-033X

  40. Correlation between the internal quantum efficiency and photoluminescence lifetime of the near-band-edge emission in a ZnO single crystal grown by the hydrothermal method Peer-reviewed

    Kazunobu Kojima, Shigefusa F. Chichibu

    Applied Physics Express 13 (12) 121005 1-5 2020/12/03

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/abcd73  

    ISSN: 1882-0778

    eISSN: 1882-0786

  41. Up-to 292-Mbps Deep-UV Communication over a Diffuse-Line-of-Sight Link Based on Silicon Photo Multiplier Array

    Yuki Yoshida, Kazunobu Kojima, Masaki Shiraiwa, Atsushi Kanno, Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Naokatsu Yamamoto, Shigefusa F. Chichibu, Yoshinari Awaji

    2020 European Conference on Optical Communications (ECOC) 2020/12

    Publisher: IEEE

    DOI: 10.1109/ecoc48923.2020.9333325  

  42. Detailed analysis of Ga-rich current pathways created in an n-Al0.7Ga0.3N layer grown on an AlN template with dense macrosteps Peer-reviewed

    Yosuke Nagasawa, Akira Hirano, Masamichi Ipponmatsu, Hideki Sako, Ai Hashimoto, Ryuichi Sugie, Yoshio Honda, Hiroshi Amano, Isamu Akasaki, Kazunobu Kojima, Shigefusa F. Chichibu

    Applied Physics Express 13 (2) 124001 1-5 2020/11/30

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/abcb49  

    ISSN: 1882-0778

    eISSN: 1882-0786

  43. Self-formed compositional superlattices triggered by cation orderings in m-plane Al1−xInxN on GaN Peer-reviewed

    Shigefusa F. Chichibu, Kohei Shima, Kazunobu Kojima, Yoshihiro Kangawa

    Scientific Reports 10 (1) 18570 1-11 2020/10/29

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41598-020-75380-3  

    eISSN: 2045-2322

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    <title>Abstract</title> Immiscible semiconductors are of premier importance since the source of lighting has been replaced by white light-emitting-diodes (LEDs) composed of thermodynamically immiscible In<italic>x</italic>Ga1−<italic>x</italic>N blue LEDs and yellow phosphors. For realizing versatile deep-ultraviolet to near-infrared light-emitters, Al1−<italic>x</italic>In<italic>x</italic>N alloys are one of the desirable candidates. Here we exemplify the appearance and self-formation sequence of compositional superlattices in compressively strained <italic>m</italic>-plane Al1−<italic>x</italic>In<italic>x</italic>N films. On each terrace of atomically-flat <italic>m</italic>-plane GaN, In- and Al-species diffuse toward a monolayer (ML) step edge, and the first and second uppermost &lt; <inline-formula><alternatives><tex-math>$$\stackrel{-}{1}\stackrel{-}{1}20$$</tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mn>20</mml:mn> </mml:mrow> </mml:math></alternatives></inline-formula>&gt; cation-rows are preferentially occupied by Al and In atoms, respectively, because the configuration of one In-N and two Al-N bonds is more stable than that of one Al-N and two In-N bonds. Subsequent coverage by next &lt; <inline-formula><alternatives><tex-math>$$\stackrel{-}{1}\stackrel{-}{1}20$$</tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mn>20</mml:mn> </mml:mrow> </mml:math></alternatives></inline-formula>&gt; Al-row buries the &lt; <inline-formula><alternatives><tex-math>$$\stackrel{-}{1}\stackrel{-}{1}20$$</tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mn>20</mml:mn> </mml:mrow> </mml:math></alternatives></inline-formula>&gt; In-row, producing nearly Al0.5In0.5N cation-stripe ordering along [0001]-axis on GaN. At the second Al0.72In0.28N layer, this ordinality suddenly lessens but In-rich and In-poor &lt; <inline-formula><alternatives><tex-math>$$\stackrel{-}{1}\stackrel{-}{1}20$$</tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mn>20</mml:mn> </mml:mrow> </mml:math></alternatives></inline-formula>&gt;-rows are alternately formed, which grow into respective {0001}-planes. Simultaneously, approximately 5-nm-period Al0.70In0.30N/Al0.74In0.26N ordering is formed to mitigate the lattice mismatch along [0001], which grow into approximately 5-nm-period Al0.70In0.30N/Al0.74In0.26N {<inline-formula><alternatives><tex-math>$$10\stackrel{-}{1}2$$</tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>10</mml:mn> <mml:mover> <mml:mn>1</mml:mn> <mml:mo>-</mml:mo> </mml:mover> <mml:mn>2</mml:mn> </mml:mrow> </mml:math></alternatives></inline-formula>} superlattices as step-flow growth progresses. Spatially resolved cathodoluminescence spectra identify the emissions from particular structures.

  44. マクロステップを持つc面AlN/サファイアテンプレート上に成長させたAlGaN量子井戸の物性評価 =特集= 深紫外発光デバイスの実現に向けた窒化物半導体結晶成長の進展 日本結晶成長学会誌 (総合報告)

    小島一信, 長澤陽祐, 平野光, 一本松正道, 杉江隆一, 本田善央, 天野浩, 赤﨑勇, 秩父重英

    日本結晶成長学会誌 (総合報告) 47 (3) 1-8 2020/10/28

  45. Urbach-Martienssen tail as the origin of the two-peak structure in the photoluminescence spectra for the near-band-edge emission of a freestanding GaN crystal observed by omnidirectional photoluminescence spectroscopy Peer-reviewed

    Kojima, K., Chichibu, S.F.

    Applied Physics Letters 117 (17) 171103 1-5 2020/10/28

    Publisher: AIP Publishing

    DOI: 10.1063/5.0028134  

    ISSN: 0003-6951

    eISSN: 1077-3118

  46. Effects of ultra-high-pressure annealing on characteristics of vacancies in Mg-implanted GaN studied using a monoenergetic positron beam Peer-reviewed

    Uedono, A., Sakurai, H., Bockowski, M., Suda, J., Chichibu, S.F., Kachi, T., Narita, T., Sierakowski, K., Ishibashi, S.

    Scientific Reports 10 (1) 17349 1-7 2020/10/15

    Publisher: Springer Science and Business Media LLC

    DOI: 10.1038/s41598-020-74362-9  

    ISSN: 2045-2322

    eISSN: 2045-2322

  47. Temperature dependence of internal quantum efficiency of radiation for the near-band-edge emission of GaN crystals quantified by omnidirectional photoluminescence spectroscopy Peer-reviewed

    Kazunobu Kojima, Kenichiro Ikemura, Shigefusa F. Chichibu

    Applied Physics Express 13 (10) 105504-105504 2020/10/01

    Publisher: IOP Publishing

    DOI: 10.35848/1882-0786/abb788  

    ISSN: 1882-0778

    eISSN: 1882-0786

  48. Annealing behaviors of vacancy-type defects in AlN deposited by radio-frequency sputtering and metalorganic vapor phase epitaxy studied using monoenergetic positron beams Peer-reviewed

    Akira Uedono, Kanako Shojiki, Kenjiro Uesugi, Shigefusa F. Chichibu, Shoji Ishibashi, Marcel Dickmann, Werner Egger, Christoph Hugenschmidt, Hideto Miyake

    Journal of Applied Physics 128 (8) 085704-085704 2020/08/28

    Publisher: AIP Publishing

    DOI: 10.1063/5.0015225  

    ISSN: 0021-8979

    eISSN: 1089-7550

  49. Room-temperature cavity-polaritons in planar ZnO microcavities fabricated by a top-down process Peer-reviewed

    K. Shima, K. Furusawa, S. F. Chichibu

    Applied Physics Letters 117 (7) 071103-071103 2020/08/17

    Publisher: AIP Publishing

    DOI: 10.1063/5.0011662  

    ISSN: 0003-6951

    eISSN: 1077-3118

  50. Self-organized micro-light-emitting diode structure for high-speed solar-blind optical wireless communications Peer-reviewed

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, A. Hirano, Y. Nagasawa, M. Ippommatsu, S. F. Chichibu

    Applied Physics Letters 117 (3) 031103-031103 2020/07/20

    Publisher: AIP Publishing

    DOI: 10.1063/5.0013112  

    ISSN: 0003-6951

    eISSN: 1077-3118

  51. Hole capture-coefficient of intrinsic nonradiative recombination centers that commonly exist in bulk, epitaxial, and proton-irradiated ZnO Peer-reviewed

    S. F. Chichibu, A. Uedono, K. Kojima, K. Koike, M. Yano, S. Gonda, S. Ishibashi

    Journal of Applied Physics 127 (215704) 1-6 2020/06

    DOI: 10.1063/5.0011309  

    ISSN: 0021-8979

    eISSN: 1089-7550

  52. Characterization of a Self-Organized Deep-Ultraviolet Micro-Light-Emitting Diode Structure for High-Speed Solar-Blind Optical Wireless Communications

    Kazunobu Kojima, Yuki Yoshida, Masaki Shiraiwa, Yoshinari Awaji, Atsushi Kanno, Naokatsu Yamamoto, Akira Hirano, Yosuke Nagasawa, Masamichi Ippommatsu, Shigefusa F. Chichibu

    Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS 2020- 2020/05/01

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    ISSN: 1092-8081

  53. Impact of high-temperature implantation of Mg ions into GaN Peer-reviewed

    Masahiro Takahashi, Atsushi Tanaka, Yuto Ando, Hirotaka Watanabe, Manato Deki, Maki Kushimoto, Shugo Nitta, Yoshio Honda, Kohei Shima, Kazunobu Kojima, Shigefusa F. Chichibu, Hiroshi Amano

    Japanese Journal of Applied Physics 59 (5) 056502-056502 2020/05/01

    Publisher: IOP Publishing

    DOI: 10.35848/1347-4065/ab8b3d  

    ISSN: 0021-4922

    eISSN: 1347-4065

  54. Analyzing oxygen and silicon incorporation in GaN microstructures composed of c-planes and angled facets by confocal magneto-photoluminescence microscopy Peer-reviewed

    Kamiyama, A., Yusa, G., Kojima, K., Chichibu, S.F.

    Aip Advances 10 (3) 035215 1-5 2020/05

    DOI: 10.1063/1.5144549  

    ISSN: 2158-3226

  55. Ammonothermal growth of 2 inch long GaN single crystals using an acidic NH4F mineralizer in a Ag-lined autoclave Peer-reviewed

    Tomida, D., Bao, Q., Saito, M., Osanai, R., Shima, K., Kojima, K., Ishiguro, T., Chichibu, S.F.

    Applied Physics Express 13 (5) 055505 1-5 2020/04/17

    DOI: 10.35848/1882-0786/ab8722  

    ISSN: 1882-0778 1882-0786

  56. Control of vacancy-type defects in Mg implanted GaN studied by positron annihilation spectroscopy Invited Peer-reviewed

    Akira Uedono, Marcel Dickmann, Werner Egger, Christoph Hugenschmidt, Shoji Ishibashi, Shigefusa F. Chichibu

    11280 (112800C) 11280C-1-8 2020/02

  57. Origin and dynamic properties of major intrinsic nonradiative recombination centers in wide bandgap nitride semiconductors Invited Peer-reviewed

    Shigefusa F. Chichibu, Kohei Shima, Kazunobu Kojima, Shoji Ishibashi, Akira Uedono

    Proceeding of SPIE 11280 (112800B) 112800B-1-10 2020/02

    Publisher: SPIE

    DOI: 10.1117/12.2545409  

  58. Theoretical analysis of photo-recycling effect on external quantum efficiency considering spatial carrier dynamics Peer-reviewed

    Asai, H., Fukuda, K., Kojima, K., Chichibu, S.F.

    Japanese Journal of Applied Physics 59 (SG) SGGK02 1-4 2020/02

    DOI: 10.7567/1347-4065/ab5b4d  

    ISSN: 0021-4922 1347-4065

  59. Spatio-time-resolved cathodoluminescence studies of wide-bandgap group-III nitride semiconductors Peer-reviewed

    Chichibu, S.F., Ishikawa, Y., Hazu, K., Furusawa, K.

    Japanese Journal of Applied Physics 59 (2) 020501 1-17 2020/01

    DOI: 10.7567/1347-4065/ab5ef4  

    ISSN: 0021-4922 1347-4065

  60. Suppression of Green Luminescence of Mg-Ion-Implanted GaN by Subsequent Implantation of Fluorine Ions at High Temperature Peer-reviewed

    Takahashi, M., Ando, Y., Kushimoto, M., Tanaka, A., Watanabe, H., Deki, M., Nitta, S., Honda, Y., Chichibu, S.F., Chen, K.J., Amano, H., Shima, K., Kojima, K.

    Physica Status Solidi B Basic Research 257 (4) 1900554-1900554 2020

    DOI: 10.1002/pssb.201900554  

    ISSN: 0370-1972 1521-3951

  61. Roles of carbon impurities and intrinsic nonradiative recombination centers on the carrier recombination processes of GaN crystals Peer-reviewed

    Kojima, K., Chichibu, S.F., Horikiri, F., Narita, Y., Yoshida, T., Fujikura, H.

    Applied Physics Express 13 (1) 012004-1-4 2020/01

    DOI: 10.7567/1882-0786/ab5adc  

    ISSN: 1882-0778 1882-0786

  62. Review - Defect-Tolerant Luminescent Properties of Low InN Mole Fraction InxGa1- xN Quantum Wells under the Presence of Polarization Fields Peer-reviewed

    Chichibu, S.F.

    Ecs Journal of Solid State Science and Technology 9 (1) 015016 1-10 2020/01

    DOI: 10.1149/2.0382001JSS  

    ISSN: 2162-8769 2162-8777

  63. Two-dimensional analysis of the nonuniform quantum yields of multiple quantum wells for AlGaN-based deep-ultraviolet LEDs grown on AlN templates with dense macrosteps using cathodoluminescence spectroscopy Peer-reviewed

    Yosuke Nagasawa, Ryuichi Sugie, Kazunobu Kojima, Akira Hirano, Masamichi Ippommatsu, Yoshio Honda, Hiroshi Amano, Isamu Akasaki, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 126 (21) 215703 1-10 2019/12

    DOI: 10.1063/1.5125623  

    ISSN: 0021-8979

    eISSN: 1089-7550

  64. In-plane optical polarization and dynamic properties of the near-band-edge emission of an m -plane freestanding AlN substrate and a homoepitaxial film Peer-reviewed

    Chichibu, S.F., Kojima, K., Hazu, K., Ishikawa, Y., Furusawa, K., Mita, S., Collazo, R., Sitar, Z., Uedono, A.

    Applied Physics Letters 115 (15) 151903-1-5 2019/09

    DOI: 10.1063/1.5116900  

  65. Internal quantum efficiency of radiation in a bulk CH3NH3PbBr3 perovskite crystal quantified by using the omnidirectional photoluminescence spectroscopy Peer-reviewed

    K. Kojima, K. Ikemura, K. Matsumori, Y. Yamada, Y. Kanemitsu, S. F. Chichibu

    APL Materials 7 (7) 071116-1-071116-6 2019/07

    Publisher: AIP Publishing

    DOI: 10.1063/1.5110652  

    eISSN: 2166-532X

  66. Photoluminescence Studies of Sequentially Mg and H Ion-implanted GaN with Various Implantation Depths and Crystallographic Planes Peer-reviewed

    Kohei Shima, Kazunobu Kojima, Akira Uedono, Shigefusa F. Chichibu

    Proceedings of IWJT2019 2019/07

  67. Theoretical Formulation of Experimentally Observed Quantum Efficiency of Radiation in Semiconducting Crystal THEORETICAL FORMULATION of EXPERIMENTALLY... ASAI, KOJIMA, CHICHIBU, and FUKUDA Peer-reviewed

    Asai, H., Kojima, K., Chichibu, S.F., Fukuda, K.

    Physical Review Applied 12 (1) 014002-1-014002-12 2019/06

    DOI: 10.1103/PhysRevApplied.12.014002  

  68. Comparison of Al x Ga1-xN multiple quantum wells designed for 265 and 285 nm deep-ultraviolet LEDs grown on AlN templates having macrosteps Peer-reviewed

    Nagasawa, Y., Hirano, A., Ipponmatsu, M., Kojima, K., Chichibu, S.F., Honda, Y., Amano, H., Akasaki, I.

    Applied Physics Express 12 (6) 064009-1-064009-6 2019/06

    DOI: 10.7567/1882-0786/ab21a9  

    ISSN: 1882-0778 1882-0786

  69. Annealing Behavior of Vacancy-Type Defects in Mg- and H-Implanted GaN Studied Using Monoenergetic Positron Beams Peer-reviewed

    Uedono, A., Iguchi, H., Narita, T., Kataoka, K., Egger, W., Koschine, T., Hugenschmidt, C., Dickmann, M., Shima, K., Kojima, K., Chichibu, S.F., Ishibashi, S.

    Physica Status Solidi (B) Basic Research 256 (10) 1900104-1-1900104-12 2019/05

    DOI: 10.1002/pssb.201900104  

  70. Impact of growth temperature on the structural properties of bgan films grown by metal-organic vapor phase epitaxy using trimethylboron Peer-reviewed

    Ebara, K., Mochizuki, K., Inoue, Y., Aoki, T., Kojima, K., Chichibu, S.F., Nakano, T.

    Japanese Journal of Applied Physics 58 (SC) SC1042-1-SC1042-5 2019/05

    DOI: 10.7567/1347-4065/ab1395  

  71. Quantification of the quantum efficiency of radiation of a freestanding GaN crystal placed outside an integrating sphere Peer-reviewed

    Kojima, K., Ikemura, K., Chichibu, S.F.

    Applied Physics Express 12 (6) 062010-1-062010-4 2019/05

    DOI: 10.7567/1882-0786/ab2165  

  72. Room temperature photoluminescence lifetime for the near-band-edge emission of epitaxial and ion-implanted GaN on GaN structures Peer-reviewed

    Chichibu, S.F., Shima, K., Kojima, K., Takashima, S.-Y., Ueno, K., Edo, M., Iguchi, H., Narita, T., Kataoka, K., Ishibashi, S., Uedono, A.

    Japanese Journal of Applied Physics 58 (SC) SC0802-1-SC0802-10 2019/05

    DOI: 10.7567/1347-4065/ab0d06  

  73. Carrier localization structure combined with current micropaths in AlGaN quantum wells grown on an AlN template with macrosteps Peer-reviewed

    Kojima, K., Nagasawa, Y., Hirano, A., Ippommatsu, M., Honda, Y., Amano, H., Akasaki, I., Chichibu, S.F.

    Applied Physics Letters 114 (1) 011102 2019/01

    DOI: 10.1063/1.5063735  

  74. 酸性アモノサーマル法によるGaN単結晶の育成 Peer-reviewed

    冨田大輔, 斉藤真, 包全喜, 石黒徹, 秩父重英

    日本セラミックス協会セラミックス誌 特集号「結晶材料・結晶育成技術のフロンティア 53 (12) 874-877 2018/12

  75. Room-temperature photoluminescence lifetime for the near-band-edge emission of (000 1 ) p-type GaN fabricated by sequential ion-implantation of Mg and H Peer-reviewed

    Shima, K., Iguchi, H., Narita, T., Kataoka, K., Kojima, K., Uedono, A., Chichibu, S.F.

    Applied Physics Letters 113 (19) 191901-1-191901-5 2018/11

    DOI: 10.1063/1.5050967  

  76. Effects of extra metals added in an autoclave during acidic ammonothermal growth of m-plane GaN single crystals using an NH4F mineralizer Peer-reviewed

    Tomida, D., Bao, Q., Saito, M., Sato, F., Ishiguro, T., Chichibu, S.F., Kurimoto, K.

    Applied Physics Express 11 (9) 2018/09

    DOI: 10.7567/APEX.11.091002  

    ISSN: 1882-0778 1882-0786

  77. Large electron capture-cross-section of the major nonradiative recombination centers in Mg-doped GaN epilayers grown on a GaN substrate Peer-reviewed

    S. F. Chichibu, K. Shima, K. Kojima, S. Takashima, M. Edo, K. Ueno, S. Ishibashi, A. Uedono

    Applied Physics Letters 112 (21) 2018/05/21

    DOI: 10.1063/1.5030645  

    ISSN: 0003-6951

  78. Polarity-dependence of the defect formation in c -axis oriented ZnO by the irradiation of an 8 MeV proton beam Peer-reviewed

    Kazuto Koike, Mitsuaki Yano, Shun-Ichi Gonda, Akira Uedono, Shoji Ishibashi, Kazunobu Kojima, Shigefusa F. Chichibu

    Journal of Applied Physics 123 (16) 161562-1-7 2018/04/28

    DOI: 10.1063/1.5010704  

    ISSN: 1089-7550 0021-8979

    eISSN: 1089-7550

  79. The origins and properties of intrinsic nonradiative recombination centers in wide bandgap GaN and AlGaN Peer-reviewed

    S. F. Chichibu, A. Uedono, K. Kojima, H. Ikeda, K. Fujito, S. Takashima, M. Edo, K. Ueno, S. Ishibashi

    Journal of Applied Physics 123 (16) 2018/04/28

    DOI: 10.1063/1.5012994  

    ISSN: 1089-7550 0021-8979

  80. Carrier Trapping by Vacancy-Type Defects in Mg-Implanted GaN Studied Using Monoenergetic Positron Beams Peer-reviewed

    Akira Uedono, Shinya Takashima, Masaharu Edo, Katsunori Ueno, Hideaki Matsuyama, Werner Egger, Tönjes Koschine, Christoph Hugenschmidt, Marcel Dickmann, Kazunobu Kojima, Shigefusa F. Chichibu, Shoji Ishibashi

    Physica Status Solidi (B) Basic Research 255 (4) 2018/04/01

    DOI: 10.1002/pssb.201700521  

    ISSN: 1521-3951 0370-1972

  81. Nearly temperature-independent ultraviolet light emission intensity of indirect excitons in hexagonal BN microcrystals Peer-reviewed

    Shigefusa F. Chichibu, Youichi Ishikawa, Hiroko Kominami, Kazuhiko Hara

    Journal of Applied Physics 123 (6) 2018/02/14

    DOI: 10.1063/1.5021788  

    ISSN: 1089-7550 0021-8979

  82. Photocatalytic NO removal over calcium-bridged siloxenes under ultraviolet and visible light irradiation Peer-reviewed

    Haruo Imagawa, Xiaoyong Wu, Hiroshi Itahara, Shu Yin, Kazunobu Kojima, Shigefusa F. Chichibu, Tsugio Sato

    Dalton Transactions 47 (20) 7070-7076 2018

    DOI: 10.1039/c7dt04310d  

    ISSN: 1477-9234 1477-9226

    eISSN: 1477-9234

  83. Local structure around In atoms in coherently grown m-plane InGaN film Peer-reviewed

    Takafumi Miyanaga, Takashi Azuhata, Kiyofumi Nitta, Shigefusa F. Chichibu

    JOURNAL OF SYNCHROTRON RADIATION 24 (5) 1012-1016 2017/09

    DOI: 10.1107/S1600577517010669  

    ISSN: 1600-5775

  84. High temperature degradation mechanism of a red phosphor, CaAlSiN3:Eu for solid-state lighting Peer-reviewed

    Masatsugu Oishi, Shohei Shiomi, Takashi Yamamoto, Tomoyuki Ueki, Yoichiro Kai, Shigefusa F. Chichibu, Aiko Takatori, Kazunobu Kojima

    JOURNAL OF APPLIED PHYSICS 122 (11) 113104-1-8 2017/09

    DOI: 10.1063/1.5003087  

    ISSN: 0021-8979

    eISSN: 1089-7550

  85. Demonstration of omnidirectional photoluminescence (ODPL) spectroscopy for precise determination of internal quantum efficiency of radiation in GaN single crystals Peer-reviewed

    Kazunobu Kojima, Hirotaka Ikeda, Kenji Fujito, Shigefusa F. Chichibu

    APPLIED PHYSICS LETTERS 111 (3) 032111-1-4 2017/07

    DOI: 10.1063/1.4995398  

    ISSN: 0003-6951

    eISSN: 1077-3118

  86. Photocatalytic activity of silicon-based nanoflakes for the decomposition of nitrogen monoxide Peer-reviewed

    Hiroshi Itahara, Xiaoyong Wu, Haruo Imagawa, Shu Yin, Kazunobu Kojima, Shigefusa F. Chichibu, Tsugio Sato

    DALTON TRANSACTIONS 46 (26) 8643-8648 2017/07

    DOI: 10.1039/c7dt01682d  

    ISSN: 1477-9226

    eISSN: 1477-9234

  87. Nitrogen vacancies as a common element of the green luminescence and nonradiative recombination centers in Mg-implanted GaN layers formed on a GaN substrate Peer-reviewed

    Kazunobu Kojima, Shinya Takashima, Masaharu Edo, Katsunori Ueno, Mitsuaki Shimizu, Tokio Takahashi, Shoji Ishibashi, Akira Uedono, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 10 (6) 061002-1-4 2017/06

    DOI: 10.7567/APEX.10.061002  

    ISSN: 1882-0778

    eISSN: 1882-0786

  88. A Low-Symmetry Cubic Mesophase of Dendronized CdS Nanoparticles and Their Structure-Dependent Photoluminescence Peer-reviewed

    Masaki Matsubara, Warren Stevenson, Jun Yabuki, Xiangbing Zeng, Haoliang Dong, Kazunobu Kojima, Shigefusa F. Chichibu, Kaoru Tamada, Atsushi Muramatsu, Goran Ungar, Kiyoshi Kanie

    CHEM 2 (6) 860-876 2017/06

    DOI: 10.1016/j.chempr.2017.05.001  

    ISSN: 2451-9294

  89. Ultraviolet light-absorbing and emitting diodes consisting of a p-type transparent-semiconducting NiO film deposited on an n-type GaN homoepitaxial layer Peer-reviewed

    Hiroshi Nakai, Mutsumi Sugiyama, Shigefusa F. Chichibu

    APPLIED PHYSICS LETTERS 110 (18) 181102-1-5 2017/05

    DOI: 10.1063/1.4982653  

    ISSN: 0003-6951

    eISSN: 1077-3118

  90. Defect-Resistant Radiative Performance of m-Plane Immiscible Al1-xInxN Epitaxial Nanostructures for Deep-Ultraviolet and Visible Polarized Light Emitters Peer-reviewed

    Shigefusa F. Chichibu, Kazunobu Kojima, Akira Uedono, Yoshitaka Sato

    ADVANCED MATERIALS 29 (5) 2017/02

    DOI: 10.1002/adma.201603644  

    ISSN: 0935-9648

    eISSN: 1521-4095

  91. A design strategy for achieving more than 90% of the overlap integral of electron and hole wavefunctions in high-AlN-mole-fraction AlxGa1-xN multiple quantum wells Peer-reviewed

    Kazunobu Kojima, Kentaro Furusawa, Yoshiki Yamazaki, Hideto Miyake, Kazumasa Hiramatsu, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 10 (1) 015802-1-4 2017/01

    DOI: 10.7567/APEX.10.015802  

    ISSN: 1882-0778

    eISSN: 1882-0786

  92. Phase transformation during simultaneous chalcogenization of CuIn(S,Se)(2) thin films using metalorganic sources Peer-reviewed

    Ryuki Shoji, Yoshiki Kayama, Shigefusa F. Chichibu, Mutsumi Sugiyama

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 14 NO 6 14 (6) 1600159-1-4 2017

    DOI: 10.1002/pssc.201600159  

    ISSN: 1862-6351

  93. Alloy-compositional-fluctuation effects on optical gain characteristics in AlGaN and InGaN quantum-well laser diodes

    Atsushi A. Yamaguchi, Takuto Minami, Shigeta Sakai, Kazunobu Kojima, Shigefusa F. Chichibu

    Conference Digest - IEEE International Semiconductor Laser Conference 2016/12/02

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    ISSN: 0899-9406

  94. Vacancies and electron trapping centers in acidic ammonothermal GaN probed by a monoenergetic positron beam Peer-reviewed

    Akira Uedono, Yusuke Tsukada, Yutaka Mikawa, Tae Mochizuki, Hideo Fujisawa, Hirotaka Ikeda, Kaori Kurihara, Kenji Fujito, Shigeru Terada, Shoji Ishibashi, Shigefusa F. Chichibu

    JOURNAL OF CRYSTAL GROWTH 448 117-121 2016/08

    DOI: 10.1016/j.jcrysgro.2016.05.015  

    ISSN: 0022-0248

    eISSN: 1873-5002

  95. Electrical properties of undoped and Li-doped NiO thin films deposited by RF sputtering without intentional heating Peer-reviewed

    Mutsumi Sugiyama, Hiroshi Nakai, Gaku Sugimoto, Aika Yamada, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 55 (8) 088003-1-3 2016/08

    DOI: 10.7567/JJAP.55.088003  

    ISSN: 0021-4922

    eISSN: 1347-4065

  96. Determination of absolute value of quantum efficiency of radiation in high quality GaN single crystals using an integrating sphere Peer-reviewed

    Kazunobu Kojima, Tomomi Ohtomo, Ken-ichiro Ikemura, Yoshiki Yamazaki, Makoto Saito, Hirotaka Ikeda, Kenji Fujito, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 120 (1) 015704-1-7 2016/07

    DOI: 10.1063/1.4955139  

    ISSN: 0021-8979

    eISSN: 1089-7550

  97. Spatio-time-resolved cathodoluminescence studies on the Si-doping effects in high AlN mole fraction AlxGa1-xN multiple quantum wells grown on an AlN template by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, Y. Ishikawa, K. Furusawa, H. Miyake, K. Hiramatsu

    15th International Workshop on Junction Technology, IWJT 2015 29-33 2016/05/09

    Publisher: Institute of Electrical and Electronics Engineers Inc.

    DOI: 10.1109/IWJT.2015.7467069  

  98. Electronic and optical characteristics of an m-plane GaN single crystal grown by hydride vapor phase epitaxy on a GaN seed synthesized by the ammonothermal method using an acidic mineralizer Peer-reviewed

    Kazunobu Kojima, Yusuke Tsukada, Erika Furukawa, Makoto Saito, Yutaka Mikawa, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito, Akira Uedono, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 55 (5) 05FA03-1-4 2016/05

    DOI: 10.7567/JJAP.55.05FA03  

    ISSN: 0021-4922

    eISSN: 1347-4065

  99. Spectroscopic ellipsometry studies on the m-plane Al1-xInxN epilayers grown by metalorganic vapor phase epitaxy on a freestanding GaN substrate Peer-reviewed

    Kazunobu Kojima, Daiki Kagaya, Yoshiki Yamazaki, Hirotaka Ikeda, Kenji Fujito, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 55 (5) 05FG04-1-5 2016/05

    DOI: 10.7567/JJAP.55.05FG04  

    ISSN: 0021-4922

    eISSN: 1347-4065

  100. Spectroscopic ellipsometry studies on the m-plane Al

    Kojima Kazunobu, Kagaya Daiki, Yamazaki Yoshiki, Ikeda Hirotaka, Fujito Kenji, Chichibu Shigefusa

    Jpn. J. Appl. Phys. 55 (5) 05FG04 2016/04/04

    Publisher: Institute of Physics

    DOI: 10.7567/JJAP.55.05FG04  

    ISSN: 0021-4922

    More details Close

    Dispersion relationships of the refractive index and extinction coefficient of m-plane Al<inf>1−</inf><inf>x</inf>In<inf>x</inf>N epitaxial films (x = 0.00, 0.23, and 0.30) grown on a freestanding m-plane GaN substrate were determined by spectroscopic ellipsometry measurement. The experimentally obtained ellipsometric parameters tan Ψ and cos Δ, which represent the differences in the p- and s-polarized amplitudes and phases of the incident light, respectively, were well fitted using the standard analytical functions. As the measurement was carried out at photon energies between 1.55 and 5.40 eV, the dispersion curves of the extinction coefficient k exhibited local maxima at approximately the Al<inf>1−</inf><inf>x</inf>In<inf>x</inf>N bandgap energies of x = 0.23 and 0.30, and the sample with x = 0.00 showed an ordinal absorption spectrum with a bandtail formed owing to high-concentration residual impurities. A large and x-dependent energy difference between the absorption and emission spectra (Stokes’ shift) was observed for the Al<inf>1−</inf><inf>x</inf>In<inf>x</inf>N films, suggesting the presence of carrier localization phenomena.

  101. Liquid-crystalline organic-inorganic hybrid dendrimer with a CdS nano-core: The self-organized structure-dependent photoluminescence behavior

    K. Kanie, M. Matsubara, W. Stevenson, Y. Yamazaki, J. Yabuki, K. Kojima, M. Nakaya, S. F. Chichibu, A. Muramatsu, X. Zeng, G. Ungar

    22nd International Congress of Chemical and Process Engineering, CHISA 2016 and 19th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2016 2 795-796 2016

    Publisher: Czech Society of Chemical Engineering

  102. Impacts of dislocations and point defects on the internal quantum efficiency of the near-band-edge emission in ALGaN-based DUV light-emitting materials Peer-reviewed

    Shigefusa F. Chichibu, Hideto Miyake, Kazumasa Hiramtsu, Akira Uedono

    Springer Series in Materials Science 227 115-136 2016/01/01

    Publisher: Springer Verlag

    DOI: 10.1007/978-3-319-24100-5_5  

    ISSN: 0933-033X

  103. Controlling the carrier lifetime of nearly threading-dislocation-free ZnO homoepitaxial films by 3d transition-metal doping Peer-reviewed

    S. F. Chichibu, K. Kojima, Y. Yamazaki, K. Furusawa, A. Uedono

    APPLIED PHYSICS LETTERS 108 (2) 021904-1-5 2016/01

    DOI: 10.1063/1.4939838  

    ISSN: 0003-6951

    eISSN: 1077-3118

  104. Alloy-Compositional-Fluctuation Effects on Optical Gain Characteristics in AlGaN and InGaN Quantum-Well Laser Diodes Peer-reviewed

    Atsushi A. Yamaguchi, Takuto Minami, Shigeta Sakai, Kazunobu Kojima, Shigefusa F. Chichibu

    2016 INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (ISLC) 2016

    ISSN: 2326-5442

  105. Spatio-Time-Resolved Cathodoluminescence Spectroscopy for Studying Local Carrier Dynamics in Ultraviolet Light-Emitting Group-III Nitride Semiconductors Using Focused Femtosecond Pulsed Electron Beams

    秩父重英

    旭硝子財団助成成果報告書(Web) 2016 ROMBUNNO.62 (WEB ONLY)-17 2016

    Publisher:

    ISSN: 1882-0069

  106. Spatio-time-resolved cathodoluminescence study on high AlN mole fraction AlxGa1-xN structures grown by metalorganic vapor phase epitaxy Peer-reviewed

    Shigefusa F. Chichibu, Youichi Ishikawa, Kentaro Furusawa, Akira Uedono, Hideto Miyake, Kazumasa Hiramatsu

    2016 COMPOUND SEMICONDUCTOR WEEK (CSW) INCLUDES 28TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE & RELATED MATERIALS (IPRM) & 43RD INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (ISCS) 2016

  107. High Quality Bulk GaN Crystal Grown by Acidic Ammonothermal Method Peer-reviewed

    Quanxi Bao, Makoto Saito, Kouhei Kurimoto, Daisuke Tomida, Kazunobu Kojima, Yuji Kagamitani, Rinzo Kayano, Tohru Ishiguro, Shigefusa F. Chichibu

    2016 COMPOUND SEMICONDUCTOR WEEK (CSW) INCLUDES 28TH INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE & RELATED MATERIALS (IPRM) & 43RD INTERNATIONAL SYMPOSIUM ON COMPOUND SEMICONDUCTORS (ISCS) 2016

  108. Spatio-time-resolved cathodoluminescence studies on Si-doped high AlN mole fraction AlxGa1-xN multiple quantum wells grown on an AlN epitaxial templates

    秩父重英, 三宅秀人, 三宅秀人, 平松和政

    電子情報通信学会技術研究報告 115 (331(LQE2015 100-122)) 43‐48-48 2015/11/19

    Publisher:

    ISSN: 0913-5685

  109. Electronic and optical characteristics of an m-plane freestanding GaN substrate grown by hydride vapor phase epitaxy on a GaN seed crystal synthesized by the ammonothermal method using an acidic mineralizer

    小島一信, 塚田悠介, 古川えりか, 斉藤真, 斉藤真, 三川豊, 久保秀一, 池田宏隆, 藤戸健史, 上殿明良, 秩父重英

    電子情報通信学会技術研究報告 115 (331(LQE2015 100-122)) 15‐19-19 2015/11/19

    Publisher:

    ISSN: 0913-5685

  110. Low-resistivity m-plane freestanding GaN substrate with very low point-defect concentrations grown by hydride vapor phase epitaxy on a GaN seed crystal synthesized by the ammonothermal method Peer-reviewed

    Kazunobu Kojima, Yusuke Tsukada, Erika Furukawa, Makoto Saito, Yutaka Mikawa, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito, Akira Uedono, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 8 (9) 095501-1-4 2015/09

    DOI: 10.7567/APEX.8.095501  

    ISSN: 1882-0778

    eISSN: 1882-0786

  111. Reduction in the concentration of cation vacancies by proper Si-doping in the well layers of high AlN mole fraction AlxGa1-xN multiple quantum wells grown by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, H. Miyake, Y. Ishikawa, K. Furusawa, K. Hiramatsu

    APPLIED PHYSICS LETTERS 107 (12) 121602-1-5 2015/09

    DOI: 10.1063/1.4931754  

    ISSN: 0003-6951

    eISSN: 1077-3118

  112. Reduction in the concentration of cation vacancies by proper Si-doping in the well layers of high AlN mole fraction AlxGa1-xN multiple quantum wells grown by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, H. Miyake, Y. Ishikawa, K. Furusawa, K. Hiramatsu

    APPLIED PHYSICS LETTERS 107 (12) 2015/09

    DOI: 10.1063/1.4931754  

    ISSN: 0003-6951

    eISSN: 1077-3118

  113. Low-resistivity m-plane freestanding GaN substrate with very low point-defect concentrations grown by hydride vapor phase epitaxy on a GaN seed crystal synthesized by the ammonothermal method Peer-reviewed

    Kazunobu Kojima, Yusuke Tsukada, Erika Furukawa, Makoto Saito, Yutaka Mikawa, Shuichi Kubo, Hirotaka Ikeda, Kenji Fujito, Akira Uedono, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 8 (9) 2015/09

    DOI: 10.7567/APEX.8.095501  

    ISSN: 1882-0778

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  114. Structural and optical properties of AlN grown by solid source solution growth method Peer-reviewed

    Yoshihiro Kangawa, Hiroshige Suetsugu, Michael Knetzger, Elke Meissner, Kouji Hazu, Shigefusa F. Chichibu, Takashi Kajiwara, Satoru Tanaka, Yosuke Iwasaki, Koichi Kakimoto

    JAPANESE JOURNAL OF APPLIED PHYSICS 54 (8) 085501-1-5 2015/08

    DOI: 10.7567/JJAP.54.085501  

    ISSN: 0021-4922

    eISSN: 1347-4065

  115. Structural and optical properties of AlN grown by solid source solution growth method Peer-reviewed

    Yoshihiro Kangawa, Hiroshige Suetsugu, Michael Knetzger, Elke Meissner, Kouji Hazu, Shigefusa F. Chichibu, Takashi Kajiwara, Satoru Tanaka, Yosuke Iwasaki, Koichi Kakimoto

    JAPANESE JOURNAL OF APPLIED PHYSICS 54 (8) 2015/08

    DOI: 10.7567/JJAP.54.085501  

    ISSN: 0021-4922

    eISSN: 1347-4065

  116. Local excitation and emission dynamics of an isolated single basal-plane stacking-fault in GaN studied by spatio-time-resolved cathodoluminescence Peer-reviewed

    Kentaro Furusawa, Yoichi Ishikawa, Hirotaka Ikeda, Kenji Fujito, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 54 (3) 030303-1-4 2015/03

    DOI: 10.7567/JJAP.54.030303  

    ISSN: 0021-4922

    eISSN: 1347-4065

  117. Local excitation and emission dynamics of an isolated single basal-plane stacking-fault in GaN studied by spatio-time-resolved cathodoluminescence Peer-reviewed

    Kentaro Furusawa, Yoichi Ishikawa, Hirotaka Ikeda, Kenji Fujito, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 54 (3) 2015/03

    DOI: 10.7567/JJAP.54.030303  

    ISSN: 0021-4922

    eISSN: 1347-4065

  118. Polarity Dependent Radiation Hardness of GaN Peer-reviewed

    Masayuki Matsuo, Takayuki Murayama, Kazuto Koike, Shigehiko Sasa, Mitsuaki Yano, Akira Uedono, Shun-ichi Gonda, Ryoya Ishigami, Kyo Kume, Tomomi Ohtomo, Erika Furukawa, Yoshiki Yamazaki, Kazunobu Kojima, Shigefusa Chichibu

    2015 IEEE INTERNATIONAL MEETING FOR FUTURE OF ELECTRON DEVICES, KANSAI (IMFEDK) 2015

    DOI: 10.1109/IMFEDK.2015.7158544  

  119. Fabrication of visible-light transparent solar cells composed of NiO/NixZn1-xO/ZnO heterostructures Peer-reviewed

    Daisuke Kawade, Kazuma Moriyama, Fumika Nakamura, Shigefusa F. Chichibu, Mutsumi Sugiyama

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 12, NO 6 12 (6) 785-788 2015

    DOI: 10.1002/pssc.201400256  

    ISSN: 1862-6351

  120. High internal quantum efficiency ultraviolet to green luminescence peaks from pseudomorphic m-plane Al1-xInxN epilayers grown on a low defect density m-plane freestanding GaN substrate Peer-reviewed

    S. F. Chichibu, K. Hazu, K. Furusawa, Y. Ishikawa, T. Onuma, T. Ohtomo, H. Ikeda, K. Fujito

    JOURNAL OF APPLIED PHYSICS 116 (21) 213501-1-6 2014/12

    DOI: 10.1063/1.4902315  

    ISSN: 0021-8979

    eISSN: 1089-7550

  121. High internal quantum efficiency ultraviolet to green luminescence peaks from pseudomorphic m-plane Al1-xInxN epilayers grown on a low defect density m-plane freestanding GaN substrate Peer-reviewed

    S. F. Chichibu, K. Hazu, K. Furusawa, Y. Ishikawa, T. Onuma, T. Ohtomo, H. Ikeda, K. Fujito

    JOURNAL OF APPLIED PHYSICS 116 (21) 2014/12

    DOI: 10.1063/1.4902315  

    ISSN: 0021-8979

    eISSN: 1089-7550

  122. Homoepitaxial growth of ZnO films with reduced impurity concentrations by helicon-wave-excited-plasma sputtering epitaxy using a crystalline ZnO target prepared by hydrothermal technique Peer-reviewed

    Kentaro Furusawa, Hayato Nakasawa, Yoichi Ishikawa, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 53 (10) 100301-1-4 2014/10

    DOI: 10.7567/JJAP.53.100301  

    ISSN: 0021-4922

    eISSN: 1347-4065

  123. Ammonothermal growth of GaN on a self-nucleated GaN seed crystal Peer-reviewed

    Quanxi Bao, Makoto Saito, Kouji Hazu, Yuji Kagamitani, Kouhei Kurimoto, Daisuke Tomida, Kun Qiao, Tohru Ishiguro, Chiaki Yokoyama, Shigefusa F. Chichibu

    JOURNAL OF CRYSTAL GROWTH 404 168-171 2014/10

    DOI: 10.1016/j.jcrysgro.2014.06.052  

    ISSN: 0022-0248

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  124. Experimental determination of band offsets of NiO-based thin film heterojunctions Peer-reviewed

    Daisuke Kawade, Shigefusa F. Chichibu, Mutsumi Sugiyama

    JOURNAL OF APPLIED PHYSICS 116 (16) 163108-1-5 2014/10

    DOI: 10.1063/1.4900737  

    ISSN: 0021-8979

    eISSN: 1089-7550

  125. Homoepitaxial growth of ZnO films with reduced impurity concentrations by helicon-wave-excited-plasma sputtering epitaxy using a crystalline ZnO target prepared by hydrothermal technique Peer-reviewed

    Kentaro Furusawa, Hayato Nakasawa, Yoichi Ishikawa, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 53 (10) 2014/10

    DOI: 10.7567/JJAP.53.100301  

    ISSN: 0021-4922

    eISSN: 1347-4065

  126. Preparation of CuInS2 thin films by sulfurization using ditertiarybutylsulfide Peer-reviewed

    Xiaohui Liu, Zhengxin Liu, Fanying Meng, Shigefusa F. Chichibu, Mutsumi Sugiyama

    THIN SOLID FILMS 558 400-404 2014/05

    DOI: 10.1016/j.tsf.2014.02.066  

    ISSN: 0040-6090

  127. Polarized XAFS study of Al K-edge for m-plane AlGaN films

    T. Miyanaga, T. Azuhata, K. Nakajima, H. Nagoya, K. Hazu, S. F. Chichibu

    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013) 502 (B) BL-11A/2011G587 2014

    DOI: 10.1088/1742-6596/502/1/012031  

    ISSN: 1742-6588

  128. Polarized XAFS study of Al K-edge for m-plane AlGaN films Peer-reviewed

    T. Miyanaga, T. Azuhata, K. Nakajima, H. Nagoya, K. Hazu, S. F. Chichibu

    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013) 502 012031 2014

    DOI: 10.1088/1742-6596/502/1/012031  

    ISSN: 1742-6588

  129. Polarized XAFS study of Al K-edge for m-plane AlGaN films Peer-reviewed

    T. Miyanaga, T. Azuhata, K. Nakajima, H. Nagoya, K. Hazu, S. F. Chichibu

    1ST CONFERENCE ON LIGHT AND PARTICLE BEAMS IN MATERIALS SCIENCE 2013 (LPBMS2013) 502 2014

    DOI: 10.1088/1742-6596/502/1/012031  

    ISSN: 1742-6588

  130. Ammonothermal crystal growth of GaN using an NH4F mineralizer Peer-reviewed

    Quanxi Bao, Makoto Saito, Kouji Hazu, Kentaro Furusawa, Yuji Kagamitani, Rinzo Kayano, Daisuke Tomida, Kun Qiao, Tohru Ishiguro, Chiaki Yokoyama, Shigefusa F. Chichibu

    Crystal Growth and Design 13 (10) 4158-4161 2013/10/02

    DOI: 10.1021/cg4007907  

    ISSN: 1528-7483 1528-7505

  131. Ammonothermal crystal growth of GaN using an NH4F mineralizer Peer-reviewed

    Quanxi Bao, Makoto Saito, Kouji Hazu, Kentaro Furusawa, Yuji Kagamitani, Rinzo Kayano, Daisuke Tomida, Kun Qiao, Tohru Ishiguro, Chiaki Yokoyama, Shigefusa F. Chichibu

    Crystal Growth and Design 13 (10) 4158-4161 2013/10/02

    DOI: 10.1021/cg4007907  

    ISSN: 1528-7483 1528-7505

  132. Electronic structure and spontaneous polarization in ScxAl yGa1-x-yN alloys lattice-matched to GaN: A first-principles study Peer-reviewed

    Kazuhiro Shimada, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    Japanese Journal of Applied Physics 52 (8) 08JM04-1-4 2013/08

    DOI: 10.7567/JJAP.52.08JM04  

    ISSN: 0021-4922 1347-4065

  133. Electronic structure and spontaneous polarization in ScxAl yGa1-x-yN alloys lattice-matched to GaN: A first-principles study Peer-reviewed

    Kazuhiro Shimada, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    Japanese Journal of Applied Physics 52 (8) 2013/08

    DOI: 10.7567/JJAP.52.08JM04  

    ISSN: 0021-4922 1347-4065

  134. Local carrier dynamics around the sub-surface basal-plane stacking faults of GaN studied by spatio-time-resolved cathodoluminescence using a front-excitation-type photoelectron-gun Peer-reviewed

    K. Furusawa, Y. Ishikawa, M. Tashiro, K. Hazu, S. Nagao, H. Ikeda, K. Fujito, S. F. Chichibu

    APPLIED PHYSICS LETTERS 103 (5) 052108-1-4 2013/07

    DOI: 10.1063/1.4817297  

    ISSN: 0003-6951

  135. Local carrier dynamics around the sub-surface basal-plane stacking faults of GaN studied by spatio-time-resolved cathodoluminescence using a front-excitation-type photoelectron-gun Peer-reviewed

    K. Furusawa, Y. Ishikawa, M. Tashiro, K. Hazu, S. Nagao, H. Ikeda, K. Fujito, S. F. Chichibu

    APPLIED PHYSICS LETTERS 103 (5) 2013/07

    DOI: 10.1063/1.4817297  

    ISSN: 0003-6951

  136. Impacts of Si-doping and resultant cation vacancy formation on the luminescence dynamics for the near-band-edge emission of Al0.6Ga0.4N films grown on AlN templates by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, H. Miyake, Y. Ishikawa, M. Tashiro, T. Ohtomo, K. Furusawa, K. Hazu, K. Hiramatsu, A. Uedono

    JOURNAL OF APPLIED PHYSICS 113 (21) 213506-1-213506-6 2013/06

    DOI: 10.1063/1.4807906  

    ISSN: 0021-8979

  137. Impacts of Si-doping and resultant cation vacancy formation on the luminescence dynamics for the near-band-edge emission of Al0.6Ga0.4N films grown on AlN templates by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, H. Miyake, Y. Ishikawa, M. Tashiro, T. Ohtomo, K. Furusawa, K. Hazu, K. Hiramatsu, A. Uedono

    JOURNAL OF APPLIED PHYSICS 113 (21) 2013/06

    DOI: 10.1063/1.4807906  

    ISSN: 0021-8979

  138. GaN基板と結晶成長技術

    横山千昭, 秩父重英, 石黒徹, 包全喜

    電子ジャーナル別冊2013化合物半導体技術大全 第2編化合物半導体基板・デバイス技術 2013/03

  139. GaN結晶成長技術の最新動向

    横山千昭, 秩父重英, 石黒徹, 包全喜

    電子ジャーナル別冊2013最先端ウェーハ&製造技術大全 第2編結晶成長技術 第4章 41-45 2013/03

  140. Fabrication of Visible-Light-Transparent Solar Cells Using p-Type NiO Films by Low Oxygen Fraction Reactive RF Sputtering Deposition Peer-reviewed

    Moe Warasawa, Yousuke Watanabe, Jun Ishida, Yoshitsuna Murata, Shigefusa F. Chichibu, Mutsumi Sugiyama

    JAPANESE JOURNAL OF APPLIED PHYSICS 52 (2) 2013/02

    DOI: 10.7567/JJAP.52.021102  

    ISSN: 0021-4922

  141. Acidic ammonothermal growth of GaN crystals using GaN powder as a nutrient Peer-reviewed

    Quanxi Bao, Takanori Hashimoto, Fukuma Sato, Kouji Hazu, Makoto Saito, Yuji Kagamitani, Takayuki Ishinabe, Rinzo Kayano, Daisuke Tomida, Kun Qiao, Shigefusa F. Chichibu, Tohru Ishiguro, Chiaki Yokoyama

    CRYSTENGCOMM 15 (26) 5382-5386 2013

    DOI: 10.1039/c3ce40448j  

    ISSN: 1466-8033

  142. Excitonic emission dynamics in homoepitaxial AlN films studied using polarized and spatio-time-resolved cathodoluminescence measurements Peer-reviewed

    S. F. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, T. Ohtomo, K. Furusawa, A. Uedono, S. Mita, J. Xie, R. Collazo, Z. Sitar

    Applied Physics Letters 103 (14) 142103-1-5 2013

    DOI: 10.1063/1.4823826  

    ISSN: 0003-6951

  143. Excitonic emission dynamics in homoepitaxial AlN films studied using polarized and spatio-time-resolved cathodoluminescence measurements Peer-reviewed

    S. F. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, T. Ohtomo, K. Furusawa, A. Uedono, S. Mita, J. Xie, R. Collazo, Z. Sitar

    Applied Physics Letters 103 (14) 2013

    DOI: 10.1063/1.4823826  

    ISSN: 0003-6951

  144. Spatio-Time-Resolved Cathodoluminescence Studies on Freestanding GaN Substrates Grown by Hydride Vapor Phase Epitaxy Peer-reviewed

    S. F. Chichibu, Y. Ishikawa, M. Tashiro, K. Hazu, K. Furusawa, H. Namita, S. Nagao, K. Fujito, A. Uedono

    MATERIALS FOR SOLID STATE LIGHTING 50 (42) 1-8 2013

    DOI: 10.1149/05042.0001ecst  

    ISSN: 1938-5862

  145. Time-resolved luminescence studies on AlN and high AlN mole fraction AlGaN alloys Peer-reviewed

    Shigefusa F. Chichibu, Takeyoshi Onuma, Kouji Hazu, Akira Uedono

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 10, NO 3 10 (3) 501-506 2013

    DOI: 10.1002/pssc.201200676  

    ISSN: 1862-6351

  146. Local lifetime and luminescence efficiency for the near-band-edge emission of freestanding GaN substrates determined using spatio-time-resolved cathodoluminescence Peer-reviewed

    Y. Ishikawa, M. Tashiro, K. Hazu, K. Furusawa, H. Namita, S. Nagao, K. Fujito, S. F. Chichibu

    APPLIED PHYSICS LETTERS 101 (21) 212106-1-4 2012/11

    DOI: 10.1063/1.4767357  

    ISSN: 0003-6951

  147. First-principles study of spontaneous polarization and band gap bowing in ScxAlyGa1-x-yN alloys lattice-matched to GaN Peer-reviewed

    Kazuhiro Shimada, Masahiro Takouda, Yuuki Hashiguchi, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 27 (10) 1-5 2012/10

    DOI: 10.1088/0268-1242/27/10/105014  

    ISSN: 0268-1242

  148. Signatures of Gamma(1)-Gamma(5) mixed-mode polaritons in polarized reflectance spectra of ZnO Peer-reviewed

    Ayako Takagi, Atsushi Nakamura, Akira Yoshikaie, So-ichiro Yoshioka, Satoru Adachi, Shigefusa F. Chichibu, Takayuki Sota

    JOURNAL OF PHYSICS-CONDENSED MATTER 24 (41) 415801-1-8 2012/10

    DOI: 10.1088/0953-8984/24/41/415801  

    ISSN: 0953-8984

  149. Structural, elastic, and polarization parameters and band structures of wurtzite ZnO and MgO Peer-reviewed

    S-H Jang, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 112 (7) 073503-1-6 2012/10

    DOI: 10.1063/1.4757023  

    ISSN: 0021-8979

    eISSN: 1089-7550

  150. First-principles study of spontaneous polarization and band gap bowing in ScxAlyGa1-x-yN alloys lattice-matched to GaN Peer-reviewed

    Kazuhiro Shimada, Masahiro Takouda, Yuuki Hashiguchi, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 27 (10) 2012/10

    DOI: 10.1088/0268-1242/27/10/105014  

    ISSN: 0268-1242

  151. Signatures of Gamma(1)-Gamma(5) mixed-mode polaritons in polarized reflectance spectra of ZnO Peer-reviewed

    Ayako Takagi, Atsushi Nakamura, Akira Yoshikaie, So-ichiro Yoshioka, Satoru Adachi, Shigefusa F. Chichibu, Takayuki Sota

    JOURNAL OF PHYSICS-CONDENSED MATTER 24 (41) 2012/10

    DOI: 10.1088/0953-8984/24/41/415801  

    ISSN: 0953-8984

  152. Lateral transport properties of Nb-doped rutile- and anatase-TiO2 films epitaxially grown on c-plane GaN Peer-reviewed

    K. Hazu, T. Ohtomo, T. Nakayama, A. Tanaka, S. F. Chichibu

    APPLIED PHYSICS LETTERS 101 (7) 072107-1-4 2012/08

    DOI: 10.1063/1.4746406  

    ISSN: 0003-6951

  153. Enhanced growth rate for ammonothermal gallium nitride crystal growth using ammonium iodide mineralizer Peer-reviewed

    D. Tomida, Y. Kagamitani, Q. Bao, K. Hazu, H. Sawayama, S. F. Chichibu, C. Yokoyama, T. Fukuda, T. Ishiguro

    JOURNAL OF CRYSTAL GROWTH 353 (1) 59-62 2012/08

    DOI: 10.1016/j.jcrysgro.2012.04.042  

    ISSN: 0022-0248

  154. Lateral transport properties of Nb-doped rutile- and anatase-TiO2 films epitaxially grown on c-plane GaN Peer-reviewed

    K. Hazu, T. Ohtomo, T. Nakayama, A. Tanaka, S. F. Chichibu

    APPLIED PHYSICS LETTERS 101 (7) 2012/08

    DOI: 10.1063/1.4746406  

    ISSN: 0003-6951

  155. 酸性鉱化剤の気相合成によるアモノサーマル法成長GaN単結晶の高純度化 Peer-reviewed

    秩父重英

    応用物理 81 (6) 502-505 2012/06/10

    Publisher:

    ISSN: 0369-8009

  156. Improving the purity of GaN grown by the ammonothermal method with in-autoclave gas-phase acidic mineralizer synthesis Peer-reviewed

    D. Tomida, S. F. Chichibu, Y. Kagamitani, Q. Bao, K. Hazu, R. Simura, K. Sugiyama, C. Yokoyama, T. Ishiguro, T. Fukuda

    JOURNAL OF CRYSTAL GROWTH 348 (1) 80-84 2012/06

    DOI: 10.1016/j.jcrysgro.2012.03.037  

    ISSN: 0022-0248

  157. Valence-band-ordering of a strain-free bulk ZnO single crystal identified by four-wave-mixing spectroscopy technique Peer-reviewed

    K. Hazu, S. F. Chichibu, S. Adachi, T. Sota

    JOURNAL OF APPLIED PHYSICS 111 (9) 093522-1-6 2012/05

    DOI: 10.1063/1.4711103  

    ISSN: 0021-8979

  158. Time-resolved photoluminescence, positron annihilation, and Al0.23Ga0.77N/GaN heterostructure growth studies on low defect density polar and nonpolar freestanding GaN substrates grown by hydride vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, H. Namita, S. Nagao, K. Fujito, A. Uedono

    JOURNAL OF APPLIED PHYSICS 111 (10) 103518-1-11 2012/05

    DOI: 10.1063/1.4717955  

    ISSN: 0021-8979

  159. Time-resolved photoluminescence, positron annihilation, and Al0.23Ga0.77N/GaN heterostructure growth studies on low defect density polar and nonpolar freestanding GaN substrates grown by hydride vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, K. Hazu, Y. Ishikawa, M. Tashiro, H. Namita, S. Nagao, K. Fujito, A. Uedono

    JOURNAL OF APPLIED PHYSICS 111 (10) 2012/05

    DOI: 10.1063/1.4717955  

    ISSN: 0021-8979

  160. Femtosecond-laser-driven photoelectron-gun for time-resolved cathodoluminescence measurement of GaN Peer-reviewed

    T. Onuma, Y. Kagamitani, K. Hazu, T. Ishiguro, T. Fukuda, S. F. Chichibu

    REVIEW OF SCIENTIFIC INSTRUMENTS 83 (4) 043905-1-7 2012/04

    DOI: 10.1063/1.3701368  

    ISSN: 0034-6748

  161. Photoluminescence Study of Defect Levels in CuInS2 Thin Films Grown by Sulfurization Using Ditertiarybutylsulfide Peer-reviewed

    Xiaohui Liu, Chika Fujiwara, Xiaoming Dou, Shigefusa F. Chichibu, Mutsumi Sugiyama

    JAPANESE JOURNAL OF APPLIED PHYSICS 51 (3) 031202-1-4 2012/03

    DOI: 10.1143/JJAP.51.031202  

    ISSN: 0021-4922

    eISSN: 1347-4065

  162. Photoluminescence Study of Defect Levels in CuInS2 Thin Films Grown by Sulfurization Using Ditertiarybutylsulfide Peer-reviewed

    Xiaohui Liu, Chika Fujiwara, Xiaoming Dou, Shigefusa F. Chichibu, Mutsumi Sugiyama

    JAPANESE JOURNAL OF APPLIED PHYSICS 51 (3) 2012/03

    DOI: 10.1143/JJAP.51.031202  

    ISSN: 0021-4922

    eISSN: 1347-4065

  163. Exciton binding energies in chalcopyrite semiconductors Peer-reviewed

    Bernard Gil, Didier Felbacq, Shigefusa F. Chichibu

    Physical Review B - Condensed Matter and Materials Physics 85 (7) 2012/02/08

    DOI: 10.1103/PhysRevB.85.075205  

    ISSN: 1098-0121 1550-235X

  164. Advantages and remaining issues of state-of-the-art m-plane freestanding GaN substrates grown by halide vapor phase epitaxy for m-plane InGaN epitaxial growth Peer-reviewed

    S. F. Chichibu, M. Kagaya, P. Corfdir, J-D Ganiere, B. Deveaud-Pledran, N. Grandjean, S. Kubo, K. Fujito

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 27 (2) 024008-1-7 2012/02

    DOI: 10.1088/0268-1242/27/2/024008  

    ISSN: 0268-1242

    eISSN: 1361-6641

  165. Exciton binding energies in chalcopyrite semiconductors Peer-reviewed

    Bernard Gil, Didier Felbacq, Shigefusa F. Chichibu

    PHYSICAL REVIEW B 85 (7) 075205-1-5 2012/02

    DOI: 10.1103/PhysRevB.85.075205  

    ISSN: 2469-9950

    eISSN: 2469-9969

  166. Advantages and remaining issues of state-of-the-art m-plane freestanding GaN substrates grown by halide vapor phase epitaxy for m-plane InGaN epitaxial growth Peer-reviewed

    S. F. Chichibu, M. Kagaya, P. Corfdir, J-D Ganiere, B. Deveaud-Pledran, N. Grandjean, S. Kubo, K. Fujito

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 27 (2) 2012/02

    DOI: 10.1088/0268-1242/27/2/024008  

    ISSN: 0268-1242

    eISSN: 1361-6641

  167. Defect characterization in Mg-doped GaN studied using a monoenergetic positron beam Peer-reviewed

    A. Uedono, S. Ishibashi, K. Tenjinbayashi, T. Tsutsui, K. Nakahara, D. Takamizu, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 111 (1) 014508-1-6 2012/01

    DOI: 10.1063/1.3675516  

    ISSN: 0021-8979

  168. Powder synthesis and ammonothermal crystal growth of GaN from metallic Ga in the presence of NH4I Peer-reviewed

    Quanxi Bao, Hiromi Sawayama, Takanori Hashimoto, Fukuma Sato, Kouji Hazu, Yuji Kagamitani, Takayuki Ishinabe, Makoto Saito, Rinzo Kayano, Daisuke Tomida, Kun Qiao, Shigefusa F. Chichibu, Chiaki Yokoyama, Tohru Ishiguro

    CRYSTENGCOMM 14 (10) 3351-3354 2012

    DOI: 10.1039/c2ce06669f  

    ISSN: 1466-8033

  169. Implementation of Spatio-Time-Resolved Cathodoluminescence Spectroscopy for Studying Local Carrier Dynamics in a Low Dislocation Density m-Plane In0.05Ga0.95N Epilayer Grown on a Freestanding GaN Substrate Peer-reviewed

    Munehito Kagaya, Pierre Corfdir, Jean-Daniel Ganiere, Benoit Deveaud-Pledran, Nicolas Grandjean, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (11) 111002-1-5 2011/11

    DOI: 10.1143/JJAP.50.111002  

    ISSN: 0021-4922

  170. Implementation of Spatio-Time-Resolved Cathodoluminescence Spectroscopy for Studying Local Carrier Dynamics in a Low Dislocation Density m-Plane In0.05Ga0.95N Epilayer Grown on a Freestanding GaN Substrate Peer-reviewed

    Munehito Kagaya, Pierre Corfdir, Jean-Daniel Ganiere, Benoit Deveaud-Pledran, Nicolas Grandjean, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (11) 2011/11

    DOI: 10.1143/JJAP.50.111002  

    ISSN: 0021-4922

  171. Spontaneous polarization and band gap bowing in YxAlyGa1-x-yN alloys lattice-matched to GaN Peer-reviewed

    Kazuhiro Shimada, Atsuhito Zenpuku, Kazuya Fujiwara, Kouji Hazu, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    JOURNAL OF APPLIED PHYSICS 110 (7) 074114-1-5 2011/10

    DOI: 10.1063/1.3651154  

    ISSN: 0021-8979

  172. Spontaneous polarization and band gap bowing in YxAlyGa1-x-yN alloys lattice-matched to GaN Peer-reviewed

    Kazuhiro Shimada, Atsuhito Zenpuku, Kazuya Fujiwara, Kouji Hazu, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

    JOURNAL OF APPLIED PHYSICS 110 (7) 2011/10

    DOI: 10.1063/1.3651154  

    ISSN: 0021-8979

  173. Collateral evidence for an excellent radiative performance of AlxGa1-xN alloy films of high AlN mole fractions Peer-reviewed

    S. F. Chichibu, K. Hazu, T. Onuma, A. Uedono

    APPLIED PHYSICS LETTERS 99 (5) 051902-1-3 2011/08

    DOI: 10.1063/1.3615681  

    ISSN: 0003-6951

  174. Optical and electrical properties of electron-irradiated Cu(In,Ga)Se-2 solar cells Peer-reviewed

    Y. Hirose, M. Warasawa, K. Takakura, S. Kimura, S. F. Chichibu, H. Ohyama, M. Sugiyama

    THIN SOLID FILMS 519 (21) 7321-7323 2011/08

    DOI: 10.1016/j.tsf.2010.12.132  

    ISSN: 0040-6090

  175. Collateral evidence for an excellent radiative performance of AlxGa1-xN alloy films of high AlN mole fractions Peer-reviewed

    S. F. Chichibu, K. Hazu, T. Onuma, A. Uedono

    APPLIED PHYSICS LETTERS 99 (5) 2011/08

    DOI: 10.1063/1.3615681  

    ISSN: 0003-6951

  176. Optical polarization properties of m-plane AlxGa1-xN epitaxial films grown on m-plane freestanding GaN substrates toward nonpolar ultraviolet LEDs Peer-reviewed

    Kouji Hazu, Shigefusa F. Chichibu

    OPTICS EXPRESS 19 (14) A1008-A1021 2011/07

    DOI: 10.1364/OE.19.0A1008  

    ISSN: 1094-4087

  177. Microstructure and interface control of GaN/MgAl2O4 grown by metalorganic chemical vapor deposition: Substrate-orientation dependence Peer-reviewed

    G. He, Shigefusa F. Chichibu, T. Chikyow

    JOURNAL OF APPLIED PHYSICS 110 (2) 2011/07

    DOI: 10.1063/1.3606430  

    ISSN: 0021-8979

  178. Sulfurization Growth of CuInS2 Thin Film Using Ditertiarybutylsulfide as a Less Hazardous Source Peer-reviewed

    Mutsumi Sugiyama, Chika Fujiwara, Ryuki Shoji, Shigefusa Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (6) 065503-1-3 2011/06

    DOI: 10.1143/JJAP.50.065503  

    ISSN: 0021-4922

  179. 地域と世界に貢献する東北大学多元物質科学研究所 ワイドバンドギャップ半導体の新機能出現と時間空間分解分光計測

    秩父重英, 羽豆耕治

    Mater Integr 2011/06/01

  180. Sulfurization Growth of CuInS2 Thin Film Using Ditertiarybutylsulfide as a Less Hazardous Source Peer-reviewed

    Mutsumi Sugiyama, Chika Fujiwara, Ryuki Shoji, Shigefusa Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (6) 2011/06

    DOI: 10.1143/JJAP.50.065503  

    ISSN: 0021-4922

  181. Growth of Cu(In,Al)(S,Se)(2) Thin Films by Selenization and Sulfurization for a Wide Bandgap Absorber Peer-reviewed

    Chika Fujiwara, Tomoaki Sato, Yoshifumi Kawasaki, Mutsumi Sugiyama, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (5) 05FB07-1-4 2011/05

    DOI: 10.1143/JJAP.50.05FB07  

    ISSN: 0021-4922

    eISSN: 1347-4065

  182. Morphological and Structural Changes in Cu(In,Ga)Se-2 Thin Films by Selenization Using Diethylselenide Peer-reviewed

    Tomoaki Sato, Yoshifumi Kawasaki, Mutsumi Sugiyama, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (5) 05FB05-1-4 2011/05

    DOI: 10.1143/JJAP.50.05FB05  

    ISSN: 0021-4922

  183. Growth of Cu(In,Al)(S,Se)(2) Thin Films by Selenization and Sulfurization for a Wide Bandgap Absorber Peer-reviewed

    Chika Fujiwara, Tomoaki Sato, Yoshifumi Kawasaki, Mutsumi Sugiyama, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (5) 2011/05

    DOI: 10.1143/JJAP.50.05FB07  

    ISSN: 0021-4922

    eISSN: 1347-4065

  184. Morphological and Structural Changes in Cu(In,Ga)Se-2 Thin Films by Selenization Using Diethylselenide Peer-reviewed

    Tomoaki Sato, Yoshifumi Kawasaki, Mutsumi Sugiyama, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 50 (5) 2011/05

    DOI: 10.1143/JJAP.50.05FB05  

    ISSN: 0021-4922

  185. ワイドバンドギャップ半導体の新機能出現と時間空間分解分光計測

    秩父重英, 羽豆耕治

    マテリアルインテグレーション 24 (4) 273-276 2011/04

    Publisher:

    ISSN: 1344-7858

  186. Time-Resolved Photoluminescence of a Two-Dimensional Electron Gas in an Al0.2Ga0.8N/GaN Heterostructure Fabricated on Ammonothermal GaN Substrates Peer-reviewed

    Shigefusa F. Chichibu, Kouji Hazu, Yuji Kagamitani, Takeyoshi Onuma, Dirk Ehrentraut, Tsuguo Fukuda, Tohru Ishiguro

    APPLIED PHYSICS EXPRESS 4 (4) 2011/04

    DOI: 10.1143/APEX.4.045501  

    ISSN: 1882-0778

  187. Impacts of anisotropic tilt mosaics of state-of-the-art m-plane freestanding GaN substrates on the structural and luminescent properties of m-plane AlxGa1-xN epilayers Peer-reviewed

    K. Hazu, M. Kagaya, T. Hoshi, T. Onuma, S. F. Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 29 (2) 021208-1-9 2011/03

    DOI: 10.1116/1.3566010  

    ISSN: 1071-1023

  188. Time-Resolved Photoluminescence of a Two-Dimensional Electron Gas in an Al0.2Ga0.8N/GaN Heterostructure Fabricated on GaN Substrates Grown by the Ammonothermal Method Using an In-Autoclave Synthesized NH4Cl Acidic Minerali Peer-reviewed

    S. F. Chichibu, K. Hazu, Y. Kagamitani, T. Onuma, D. Ehrentraut, T. Fukuda, T. Ishiguro

    Applied Physics Express 4 (4) 045501-1-3 2011/03

    DOI: 10.1143/APEX.4.045501  

  189. Impacts of anisotropic tilt mosaics of state-of-the-art m-plane freestanding GaN substrates on the structural and luminescent properties of m-plane AlxGa1-xN epilayers Peer-reviewed

    K. Hazu, M. Kagaya, T. Hoshi, T. Onuma, S. F. Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 29 (2) 2011/03

    DOI: 10.1116/1.3566010  

    ISSN: 1071-1023

  190. Sulfurization growth of CuInS 2 thin films and solar cells using ditertiarybutylsulfide as a less-hazardous source Peer-reviewed

    M. Sugiyama, C. Fujiwara, R. Shoji, S. F. Chichibu

    Conference Record of the IEEE Photovoltaic Specialists Conference 000436-000439 2011

    DOI: 10.1109/PVSC.2011.6185987  

    ISSN: 0160-8371

  191. Impacts of anisotropic tilt mosaics of state-of-the-art m -plane freestanding GaN substrates on the structural and luminescent properties of m -plane Alx Ga1-x N epilayers Peer-reviewed

    K. Hazu, M. Kagaya, T. Hoshi, T. Onuma, S. F. Chichibu

    Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics 29 (2) 2011

    Publisher: AVS Science and Technology Society

    DOI: 10.1116/1.3566010  

    ISSN: 2166-2754 2166-2746

  192. Transparent semiconducting Nb-doped anatase TiO2 films deposited by helicon-wave-excited-plasma sputtering Peer-reviewed

    A. Fouda, K. Hazu, M. Haemori, T. Nakayama, A. Tanaka, S. F. Chichibu

    Journal of Vacuum Science and Technology B:Nanotechnology and Microelectronics 29 (1) 0110171-0110176 2011

    Publisher: AVS Science and Technology Society

    DOI: 10.1116/1.3525918  

    ISSN: 2166-2754 2166-2746

  193. Point defects in GaN and related group-III nitrides studied by means of positron annihilation Invited Peer-reviewed

    Akira Uedono, Shoji Ishibashi, Shigefusa F. Chichibu, Katsuhiro Akimoto

    GALLIUM NITRIDE MATERIALS AND DEVICES VI 7939 793901-1-10 2011

    DOI: 10.1117/12.871611  

    ISSN: 0277-786X

  194. Helicon-wave-excited plasma sputtering epitaxy of Nb-doped TiO2 films on GaN Peer-reviewed

    A. Fouda, K. Hazu, T. Nakayama, A. Tanaka, S. F. Chichibu

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 2 8 (2) 534-536 2011

    DOI: 10.1002/pssc.201000466  

    ISSN: 1862-6351

  195. Transparent semiconducting Nb-doped anatase TiO2 films deposited by helicon-wave-excited-plasma sputtering Peer-reviewed

    A. Fouda, K. Hazu, M. Haemori, T. Nakayama, A. Tanaka, S. F. Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 29 (1) 011017-1-6 2011/01

    DOI: 10.1116/1.3525918  

    ISSN: 1071-1023

  196. Helicon-wave-excited plasma sputtering epitaxy of Nb-doped TiO2 films on GaN Peer-reviewed

    A. Fouda, K. Hazu, T. Nakayama, A. Tanaka, S. F. Chichibu

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 2 8 (2) 2011

    DOI: 10.1002/pssc.201000466  

    ISSN: 1862-6351

  197. Transparent semiconducting Nb-doped anatase TiO2 films deposited by helicon-wave-excited-plasma sputtering Peer-reviewed

    A. Fouda, K. Hazu, M. Haemori, T. Nakayama, A. Tanaka, S. F. Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 29 (1) 2011/01

    DOI: 10.1116/1.3525918  

    ISSN: 1071-1023

  198. Major impacts of point defects and impurities on the carrier recombination dynamics in AlN Peer-reviewed

    S. F. Chichibu, T. Onuma, K. Hazu, A. Uedono

    APPLIED PHYSICS LETTERS 97 (20) 201904-1-3 2010/11

    DOI: 10.1063/1.3517484  

    ISSN: 0003-6951

  199. Ammonothermal epitaxy of wurtzite GaN using an NH4I mineralizer Peer-reviewed

    Y. Kagamitani, T. Kuribayashi, K. Hazu, T. Onuma, D. Tomida, R. Simura, S. F. Chichibu, K. Sugiyama, C. Yokoyama, T. Ishiguro, T. Fukuda

    JOURNAL OF CRYSTAL GROWTH 312 (22) 3384-3387 2010/11

    DOI: 10.1016/j.jcrysgro.2010.07.065  

    ISSN: 0022-0248

  200. Major impacts of point defects and impurities on the carrier recombination dynamics in AlN Peer-reviewed

    S. F. Chichibu, T. Onuma, K. Hazu, A. Uedono

    APPLIED PHYSICS LETTERS 97 (20) 2010/11

    DOI: 10.1063/1.3517484  

    ISSN: 0003-6951

  201. Interface chemistry and electronic structure of GaN/MgAl2O4 revealed by angle-resolved photoemission spectroscopy Peer-reviewed

    G. He, T. Chikyow, Shigefusa F. Chichibu

    APPLIED PHYSICS LETTERS 97 (16) 161907(1)-(3) 2010/10

    DOI: 10.1063/1.3505153  

    ISSN: 0003-6951

  202. Interface chemistry and electronic structure of GaN/MgAl2O4 revealed by angle-resolved photoemission spectroscopy Peer-reviewed

    G. He, T. Chikyow, Shigefusa F. Chichibu

    APPLIED PHYSICS LETTERS 97 (16) 2010/10

    DOI: 10.1063/1.3505153  

    ISSN: 0003-6951

  203. Surface stoichiometry and activity control for atomically smooth low dislocation density ZnO and pseudomorphic MgZnO epitaxy on a Zn-polar ZnO substrate by the helicon-wave-excited-plasma sputtering epitaxy method Peer-reviewed

    Y. Sawai, K. Hazu, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 108 (6) 063541-1-8 2010/09

    DOI: 10.1063/1.3485600  

    ISSN: 0021-8979

  204. ヨウ化アンモニウムを鉱化剤に用いたアモノサーマル法によるGaN育成

    鏡谷 勇二, 栗林 岳人, 羽豆 耕治, 尾沼 猛儀, 冨田 大輔, 志村 玲子, 秩父 重英, 杉山 和正, 横山 千昭, 石黒 徹, 福田 承生

    応用物理学会学術講演会講演予稿集 2010.2 3154-3154 2010/08/30

    Publisher: 公益社団法人 応用物理学会

    DOI: 10.11470/jsapmeeting.2010.2.0_3154  

    eISSN: 2436-7613

  205. Nitrogen doped MgxZn1-xO/ZnO single heterostructure ultraviolet light-emitting diodes on ZnO substrates Peer-reviewed

    K. Nakahara, S. Akasaka, H. Yuji, K. Tamura, T. Fujii, Y. Nishimoto, D. Takamizu, A. Sasaki, T. Tanabe, H. Takasu, H. Amaike, T. Onuma, S. F. Chichibu, A. Tsukazaki, A. Ohtomo, M. Kawasaki

    APPLIED PHYSICS LETTERS 97 (1) 013501(1)-(3) 2010/07

    DOI: 10.1063/1.3459139  

    ISSN: 0003-6951

  206. Nitrogen doped MgxZn1-xO/ZnO single heterostructure ultraviolet light-emitting diodes on ZnO substrates Peer-reviewed

    K. Nakahara, S. Akasaka, H. Yuji, K. Tamura, T. Fujii, Y. Nishimoto, D. Takamizu, A. Sasaki, T. Tanabe, H. Takasu, H. Amaike, T. Onuma, S. F. Chichibu, A. Tsukazaki, A. Ohtomo, M. Kawasaki

    APPLIED PHYSICS LETTERS 97 (1) 2010/07

    DOI: 10.1063/1.3459139  

    ISSN: 0003-6951

  207. A new approach to technology roadmapping of disruptive innovation Peer-reviewed

    A. Nagahira, D. Probert, T. Fukuda, S. F. Chichibu, Y. Kagamitani, A. Abe

    Proceedings of the R&D Management Conference (2010), Roadmapping Session 1 (2) 9-23 2010/06/30

  208. Photoluminescence and positron annihilation studies on Mg-doped nitrogen-polarity semipolar, 10(1)over-bar(1)over-bar GaN heteroepitaxial layers grown by metalorganic vapor phase epitaxy Peer-reviewed

    T. Onuma, A. Uedono, H. Asamizu, H. Sato, J. F. Kaeding, M. Iza, S. P. DenBaars, S. Nakamura, S. F. Chichibu

    APPLIED PHYSICS LETTERS 96 (9) 091913 1-3 2010/03

    DOI: 10.1063/1.3337098  

    ISSN: 0003-6951

  209. Photoluminescence and positron annihilation studies on Mg-doped nitrogen-polarity semipolar, 10(1)over-bar(1)over-bar GaN heteroepitaxial layers grown by metalorganic vapor phase epitaxy Peer-reviewed

    T. Onuma, A. Uedono, H. Asamizu, H. Sato, J. F. Kaeding, M. Iza, S. P. DenBaars, S. Nakamura, S. F. Chichibu

    APPLIED PHYSICS LETTERS 96 (9) 2010/03

    DOI: 10.1063/1.3337098  

    ISSN: 0003-6951

  210. Light polarization characteristics of m-plane AlxGa1-xN films suffering from in-plane anisotropic tensile stresses Peer-reviewed

    K. Hazu, T. Hoshi, M. Kagaya, T. Onuma, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 107 (3) 033701 2010/02

    DOI: 10.1063/1.3282705  

    ISSN: 0021-8979

  211. Identification of extremely radiative nature of AlN by time-resolved photoluminescence Peer-reviewed

    T. Onuma, K. Hazu, A. Uedono, T. Sota, S. F. Chichibu

    APPLIED PHYSICS LETTERS 96 (6) 061906 1-3 2010/02

    DOI: 10.1063/1.3284653  

    ISSN: 0003-6951

  212. Identification of extremely radiative nature of AlN by time-resolved photoluminescence Peer-reviewed

    T. Onuma, K. Hazu, A. Uedono, T. Sota, S. F. Chichibu

    APPLIED PHYSICS LETTERS 96 (6) 2010/02

    DOI: 10.1063/1.3284653  

    ISSN: 0003-6951

  213. Light polarization characteristics of m-plane AlxGa1-xN films suffering from in-plane anisotropic tensile stresses Peer-reviewed

    K. Hazu, T. Hoshi, M. Kagaya, T. Onuma, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 107 (3) 2010/02

    DOI: 10.1063/1.3282705  

    ISSN: 0021-8979

  214. Optical Properties of GaN Substrates

    Chichibu, S.F.

    Springer Series in Materials Science 133 2010

    DOI: 10.1007/978-3-642-04830-2_13  

  215. Optical and Solar Cell Properties of Alpha-ray, Proton, and Gamma-ray Irradiated Cu(In,Ga)Se-2 Thin Films and Solar Cells Peer-reviewed

    Mutsumi Sugiyama, Toshihiro Yasuniwa, Hisayuki Nakanishi, Shigefusa F. Chichibu, Shinichi Kimura

    JAPANESE JOURNAL OF APPLIED PHYSICS 49 (4) 042302 1-3 2010

    DOI: 10.1143/JJAP.49.042302  

    ISSN: 0021-4922

  216. Optimization of the Growth Conditions for Molecular Beam Epitaxy of MgxZn1-xO (0 <= x <= 0.12) Films on Zn-Polar ZnO Substrates Peer-reviewed

    Hiroyuki Yuji, Ken Nakahara, Kentaro Tamura, Shunsuke Akasaka, Yoshio Nishimoto, Daiju Takamizu, Takeyoshi Onuma, Shigefusa F. Chichibu, Atsushi Tsukazaki, Akira Ohtomo, Masashi Kawasaki

    JAPANESE JOURNAL OF APPLIED PHYSICS 49 (7) 071104 1-5 2010

    DOI: 10.1143/JJAP.49.071104  

    ISSN: 0021-4922

    eISSN: 1347-4065

  217. Crystal Phase-Selective Epitaxy of Rutile and Anatase Nb-Doped TiO2 Films on a GaN Template by the Helicon-Wave-Excited-Plasma Sputtering Epitaxy Method Peer-reviewed

    Kouji Hazu, Aly Fouda, Tokuyuki Nakayama, Akikazu Tanaka, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 3 (9) 091102( 1)-(3) 2010

    DOI: 10.1143/APEX.3.091102  

    ISSN: 1882-0778

  218. Optical and Solar Cell Properties of Alpha-ray, Proton, and Gamma-ray Irradiated Cu(In,Ga)Se-2 Thin Films and Solar Cells Peer-reviewed

    Mutsumi Sugiyama, Toshihiro Yasuniwa, Hisayuki Nakanishi, Shigefusa F. Chichibu, Shinichi Kimura

    JAPANESE JOURNAL OF APPLIED PHYSICS 49 (4) 2010

    DOI: 10.1143/JJAP.49.042302  

    ISSN: 0021-4922

  219. Optimization of the Growth Conditions for Molecular Beam Epitaxy of MgxZn1-xO (0 <= x <= 0.12) Films on Zn-Polar ZnO Substrates Peer-reviewed

    Hiroyuki Yuji, Ken Nakahara, Kentaro Tamura, Shunsuke Akasaka, Yoshio Nishimoto, Daiju Takamizu, Takeyoshi Onuma, Shigefusa F. Chichibu, Atsushi Tsukazaki, Akira Ohtomo, Masashi Kawasaki

    JAPANESE JOURNAL OF APPLIED PHYSICS 49 (7) 2010

    DOI: 10.1143/JJAP.49.071104  

    ISSN: 0021-4922

    eISSN: 1347-4065

  220. Crystal Phase-Selective Epitaxy of Rutile and Anatase Nb-Doped TiO2 Films on a GaN Template by the Helicon-Wave-Excited-Plasma Sputtering Epitaxy Method Peer-reviewed

    Kouji Hazu, Aly Fouda, Tokuyuki Nakayama, Akikazu Tanaka, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 3 (9) 2010

    DOI: 10.1143/APEX.3.091102  

    ISSN: 1882-0778

  221. Helicon-Wave-Excited-Plasma Sputtering as an Expandable Epitaxy Method for Planar Semiconductor Thin Films Peer-reviewed

    Hiroaki Amaike, Kouji Hazu, Yutaka Sawai, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 2 (10) 105503 1-3 2009/10

    DOI: 10.1143/APEX.2.105503  

    ISSN: 1882-0778

  222. Synthesis, crystal structure and characterization of iron pyroborate (Fe2B2O5) single crystals (vol 182, pg 2004, 2009) Peer-reviewed

    Tetsuya Kawano, Haruhiko Morito, Takahiro Yamada, Takeyoshi Onuma, Shigefusa F. Chichibu, Hisanori Yamane

    JOURNAL OF SOLID STATE CHEMISTRY 182 (10) 2947-2947 2009/10

    DOI: 10.1016/j.jssc.2009.08.008  

    ISSN: 0022-4596

  223. Structural, Optical, and Homoepitaxial Studies on the Bulk GaN Single Crystals Spontaneously Nucleated by the Na-Flux Method Peer-reviewed

    Takeyoshi Onuma, Takahiro Yamada, Hisanori Yamane, Shigefusa F. Chichibu

    APPLIED PHYSICS EXPRESS 2 (9) 091004(1)-(3) 2009/09

    DOI: 10.1143/APEX.2.091004  

    ISSN: 1882-0778

  224. Synthesis, crystal structure and characterization of iron pyroborate (Fe2B2O5) single crystals Peer-reviewed

    Tetsuya Kawano, Haruhiko Morito, Takahiro Yamada, Takeyoshi Onuma, Shigefusa F. Chichibu, Hisanori Yamane

    JOURNAL OF SOLID STATE CHEMISTRY 182 (8) 2004-2009 2009/08

    DOI: 10.1016/j.jssc.2009.05.009  

    ISSN: 0022-4596

    eISSN: 1095-726X

  225. Local structural study of Mg0.06Zn0.94O film by polarized XAFS Peer-reviewed

    Tsutomu Yamada, Takafumi Miyanaga, Takashi Azuhata, Takahiro Koyama, Shigefusa F. Chichibu, Yoshinori Kitajima

    e-Journal of Surface Science and Nanotechnology 7 596-600 2009/05/09

    DOI: 10.1380/ejssnt.2009.596  

    ISSN: 1348-0391

  226. Nonpolar and Semipolar Group III Nitride-Based Materials Peer-reviewed

    J. S. Speck, S. F. Chichibu

    MRS BULLETIN 34 (5) 304-312 2009/05

    DOI: 10.1557/mrs2009.91  

    ISSN: 0883-7694

  227. Thermal stability of semi-insulating property of Fe-doped GaN bulk films studied by photoluminescence and monoenergetic positron annihilation techniques Peer-reviewed

    Masashi Kubota, Takeyoshi Onuma, Yujiro Ishihara, Akira Usui, Akira Uedono, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 105 (8) 083542(1)-(9) 2009/04

    DOI: 10.1063/1.3110205  

    ISSN: 0021-8979

  228. Vacancy-oxygen complexes and their optical properties in AlN epitaxial films studied by positron annihilation Peer-reviewed

    A. Uedono, S. Ishibashi, S. Keller, C. Moe, P. Cantu, T. M. Katona, D. S. Kamber, Y. Wu, E. Letts, S. A. Newman, S. Nakamura, J. S. Speck, U. K. Mishra, S. P. DenBaars, T. Onuma, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 105 (5) 054501 1-6 2009/03

    DOI: 10.1063/1.3079333  

    ISSN: 0021-8979

    eISSN: 1089-7550

  229. Impacts of anisotropic lattice relaxation on crystal mosaicity and luminescence spectra of m-plane AlxGa1-xN films grown on m-plane freestanding GaN substrates by NH3 source molecular beam epitaxy Peer-reviewed

    T. Hoshi, K. Hazu, K. Ohshita, M. Kagaya, T. Onuma, K. Fujito, H. Namita, S. F. Chichibu

    APPLIED PHYSICS LETTERS 94 (7) .071910 1-3 2009/02

    DOI: 10.1063/1.3089248  

    ISSN: 0003-6951

  230. Impacts of anisotropic lattice relaxation on crystal mosaicity and luminescence spectra of m-plane AlxGa1-xN films grown on m-plane freestanding GaN substrates by NH3 source molecular beam epitaxy Peer-reviewed

    T. Hoshi, K. Hazu, K. Ohshita, M. Kagaya, T. Onuma, K. Fujito, H. Namita, S. F. Chichibu

    APPLIED PHYSICS LETTERS 94 (7) 071910(1)-(3) 2009/02

    DOI: 10.1063/1.3089248  

    ISSN: 0003-6951

  231. Growth of single-phase Cu(In,Al)Se-2 photoabsorbing films by selenization using diethylselenide Peer-reviewed

    M. Sugiyama, A. Umezawa, T. Yasuniwa, A. Miyama, H. Nakanishi, S. F. Chichibu

    THIN SOLID FILMS 517 (7) 2175-2177 2009/02

    DOI: 10.1016/j.tsf.2008.10.083  

    ISSN: 0040-6090

  232. Free and bound exciton fine structures in AlN epilayers grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    T. Onuma, T. Shibata, K. Kosaka, K. Asai, S. Sumiya, M. Tanaka, T. Sota, A. Uedono, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 105 (2) 023529(1)-(7) 2009/01

    DOI: 10.1063/1.3068335  

    ISSN: 0021-8979

  233. Fabrication of a n-type ZnO/p-type Cu-Al-O heterojunction diode by sputtering deposition methods Peer-reviewed

    Satoru Takahata, Keita Saiki, Takashi Imao, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 5 6 (5) 1105-+ 2009

    DOI: 10.1002/pssc.200881167  

    ISSN: 1862-6351

  234. Ga-doped ZnO transparent conducting films prepared by helicon-wave-excited plasma sputtering Peer-reviewed

    Shingo Masaki, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 5 6 (5) 1109-+ 2009

    DOI: 10.1002/pssc.200881168  

    ISSN: 1862-6351

  235. Preparation of CuInSe2 thin films by metal-organic decomposition with oxidation-reduction and subsequent selenization using diethylselenide Peer-reviewed

    S. Ando, N. Takayama, M. Sugiyama, H. Nakanishi, S. F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 5 6 (5) 1038-+ 2009

    DOI: 10.1002/pssc.200881245  

    ISSN: 1862-6351

  236. Study on dephasing dynamics of Exciton Fine Structure in GaN Peer-reviewed

    T. Ishiguro, Y. Toda, S. Adachi, S. F. Chichibu

    PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, SUPPL 2 6 S719-S722 2009

    DOI: 10.1002/pssc.200880829  

    ISSN: 1862-6351

  237. Preparation of Cu(In,Al)Se-2 thin films by selenization using diethylselenide Peer-reviewed

    Akihisa Umezawa, Toshihiro Yasuniwa, Atsushi Miyama, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 5 6 (5) 1016-+ 2009

    DOI: 10.1002/pssc.200881165  

    ISSN: 1862-6351

  238. Fabrication of Zn-doped Cu(In,Ga)Se-2 thin film solar cells prepared by Zn diffusion from the gas phase using dimethylzinc Peer-reviewed

    Atsushi Miyama, Xiaoming Dou, Toshihiro Yasuniwa, Akihisa Umezawa, Hisayuki Nakanishi, Shigefusa F. Chichibu, Mutsumi Sugiyama

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 5 6 (5) 1213-+ 2009

    DOI: 10.1002/pssc.200881169  

    ISSN: 1862-6351

  239. 特集:発光材料の新展開 非極性面窒化物半導体発光素子の最近の動向

    尾沼猛儀, 秩父重英

    マテリアルインテグレーション 21 (12) 53-63 2008/12

    Publisher:

    ISSN: 1344-7858

  240. 発光材料の新展開 非極性面窒化物半導体発光素子の最近の動向

    尾沼猛儀, 秩父重英

    Mater Integr 2008/11/25

  241. Improved characteristics and issues of m-plane InGaN films grown on low defect density m-plane freestanding GaN substrates by metalorganic vapor phase epitaxy Peer-reviewed

    S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, T. Onuma, K. Okamoto, H. Ohta

    APPLIED PHYSICS LETTERS 93 (15) 151908 1-3 2008/10

    DOI: 10.1063/1.2998580  

    ISSN: 0003-6951

  242. Nonpolar Nitride Heterostructures and Devices grown by MOCVD Peer-reviewed

    Arpan Chakraborty, Shigefusa Chichibu, Umesh Mishra

    Nitrides with Nonpolar Surfaces: Growth, Properties, and Devices 319-355 2008/09/16

    Publisher: Wiley-VCH Verlag GmbH &amp; Co. KGaA

    DOI: 10.1002/9783527623150.ch12  

  243. Plasma-assisted molecular beam epitaxy of high optical quality MgZnO films on Zn-polar ZnO substrates Peer-reviewed

    Yoshio Nishimoto, Ken Nakahara, Daiju Takamizu, Atsushi Sasaki, Kentaro Tamura, Shunsuke Akasaka, Hiroyuki Yuji, Tetsuo Fujii, Tetsuhiro Tanabe, Hidemi Takasu, Atsushi Tsukazaki, Akira Ohtomo, Takeyoshi Onuma, Shigefusa F. Chichibu, Masashi Kawasaki

    APPLIED PHYSICS EXPRESS 1 (9) 091202-1-091202-3 2008/09

    DOI: 10.1143/APEX.1.091202  

    ISSN: 1882-0778

  244. Anisotropic optical gain in m-plane In(x)Ga(1-x)N/GaN multiple quantum well laser diode wafers fabricated on the low defect density freestanding GaN substrates Peer-reviewed

    T. Onuma, K. Okamoto, H. Ohta, S. F. Chichibu

    APPLIED PHYSICS LETTERS 93 (9) 091112-1-091112-3 2008/09

    DOI: 10.1063/1.2978242  

    ISSN: 0003-6951

  245. Optical properties of nearly stacking-fault-free m-plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density free-standing GaN substrates (vol 92, art no 091912, 2008) Peer-reviewed

    S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, K. Okamoto, H. Ohta

    APPLIED PHYSICS LETTERS 93 (12) 2008/09

    DOI: 10.1063/1.2991440  

    ISSN: 0003-6951

  246. Anisotropic optical gain in m-plane In(x)Ga(1-x)N/GaN multiple quantum well laser diode wafers fabricated on the low defect density freestanding GaN substrates Peer-reviewed

    T. Onuma, K. Okamoto, H. Ohta, S. F. Chichibu

    APPLIED PHYSICS LETTERS 93 (9) 2008/09

    DOI: 10.1063/1.2978242  

    ISSN: 0003-6951

  247. Plasma-assisted molecular beam epitaxy of high optical quality MgZnO films on Zn-polar ZnO substrates Peer-reviewed

    Yoshio Nishimoto, Ken Nakahara, Daiju Takamizu, Atsushi Sasaki, Kentaro Tamura, Shunsuke Akasaka, Hiroyuki Yuji, Tetsuo Fujii, Tetsuhiro Tanabe, Hidemi Takasu, Atsushi Tsukazaki, Akira Ohtomo, Takeyoshi Onuma, Shigefusa F. Chichibu, Masashi Kawasaki

    APPLIED PHYSICS EXPRESS 1 (9) 2008/09

    DOI: 10.1143/APEX.1.091202  

    ISSN: 1882-0778

  248. Impact of strain on free-exciton resonance energies in wurtzite AlN (vol 102, art no 123707, 2007) Peer-reviewed

    Hirokatsu Ikeda, Takahiro Okamura, Kodai Matsukawa, Takayuki Sota, Mariko Sugawara, Takuya Hoshi, Pablo Cantu, Rajat Sharma, John F. Kaeding, Stacia Keller, Umesh K. Mishra, Kei Kosaka, Keiichiro Asai, Shigeaki Sumiya, Tomohiko Shibata, Mitsuhiro Tanaka, James S. Speck, Steven P. DenBaars, Shuji Nakamura, Takahiro Koyama, Takeyoshi Onuma, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 103 (8) 2008/04

    DOI: 10.1063/1.2903974  

    ISSN: 0021-8979

  249. Optical properties of nearly stacking-fault-free m-plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density freestanding GaN substrates Peer-reviewed

    S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, K. Okamoto, H. Ohta

    APPLIED PHYSICS LETTERS 92 (9) 091912-1-091912-3 2008/03

    DOI: 10.1063/1.2842387  

    ISSN: 0003-6951

  250. Direct correlation between the internal quantum efficiency and photoluminescence lifetime in undoped ZnO epilayers grown on Zn-polar ZnO substrates by plasma-assisted molecular beam epitaxy Peer-reviewed

    D. Takamizu, Y. Nishimoto, S. Akasaka, H. Yuji, K. Tamura, K. Nakahara, T. Onuma, T. Tanabe, H. Takasu, M. Kawasaki, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 103 (6) pp.063502-1-pp.063502-4 2008/03

    DOI: 10.1063/1.2841199  

    ISSN: 0021-8979

  251. Optical properties of nearly stacking-fault-free m-plane GaN homoepitaxial films grown by metal organic vapor phase epitaxy on low defect density freestanding GaN substrates Peer-reviewed

    S. F. Chichibu, H. Yamaguchi, L. Zhao, M. Kubota, K. Okamoto, H. Ohta

    APPLIED PHYSICS LETTERS 92 (9) 129901 1 2008/03

    DOI: 10.1063/1.2842387  

    ISSN: 0003-6951

  252. Improvement of AI-Polar AIN layer quality by three-stage flow-modulation metalorganic chemical vapor deposition Peer-reviewed

    Misaichi Takeuchi, Shin Ooishi, Takumi Ohtsuka, Tomohiro Maegawa, Takahiro Koyama, Shigefusa F. Chichibu, Yoshinobu Aoyagi

    APPLIED PHYSICS EXPRESS 1 (2) 021102-1-021102-3 2008/02

    DOI: 10.1143/APEX.1.021102  

    ISSN: 1882-0778

  253. Formation of Zn-doped CuInSe2 films by thermal annealing using dimethylzinc Peer-reviewed

    M. Sugiyama, A. Kinoshita, A. Miyama, H. Nakanishi, S. F. Chichibu

    JOURNAL OF CRYSTAL GROWTH 310 (4) 794-797 2008/02

    DOI: 10.1016/j.jcrysgro.2007.11.172  

    ISSN: 0022-0248

  254. Microstructural evolution in m-plane GaN growth on m-plane SiC Peer-reviewed

    Qian Sun, Soon-Yong Kwon, Zaiyuan Ren, Jung Han, Takeyoshi Onuma, Shigefusa F. Chichibu, Shaoping Wang

    APPLIED PHYSICS LETTERS 92 (5) 051112-1-051112-3 2008/02

    DOI: 10.1063/1.2841671  

    ISSN: 0003-6951

    eISSN: 1077-3118

  255. Improvement of AI-Polar AIN layer quality by three-stage flow-modulation metalorganic chemical vapor deposition Peer-reviewed

    Misaichi Takeuchi, Shin Ooishi, Takumi Ohtsuka, Tomohiro Maegawa, Takahiro Koyama, Shigefusa F. Chichibu, Yoshinobu Aoyagi

    APPLIED PHYSICS EXPRESS 1 (2) 2008/02

    DOI: 10.1143/APEX.1.021102  

    ISSN: 1882-0778

  256. Preparation of ZnO : Ga thin films by helicon-wave-excited plasma sputtering Peer-reviewed

    Shingo Masaki, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 9 5 (9) 3135-+ 2008

    DOI: 10.1002/pssc.200779182  

    ISSN: 1862-6351

  257. Correlation between the violet luminescence intensity and defect density in AlN epilayers grown by ammonia-source molecular beam epitaxy Peer-reviewed

    Takuya Hoshi, Takahiro Koyama, Mariko Sugawara, Akira Uedono, John F. Kaeding, Rajat Sharma, Shuji Nakamura, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 6 5 (6) 2129-+ 2008

    DOI: 10.1002/pssc.200778473  

    ISSN: 1862-6351

  258. Impact of point defects on the luminescence properties of (Al,Ga)N

    Chichibu, S.F., Uedono, A., Onuma, T., DenBaars, S.P., Mishra, U.K., Speck, J.S., Nakamura, S.

    Materials Science Forum 590 2008

    Publisher: Materials Science Forum

    DOI: 10.4028/0-87849-358-1.233  

  259. Four-wave mixing spectroscopy of ultraviolet excitons in strained GaN Peer-reviewed

    T. Ishiguro, Y. Toda, S. Adachi, S. F. Chichibu

    ULTRAFAST PHENOMENA IN SEMICONDUCTORS AND NANOSTRUCTURE MATERIALS XII 6892 2008

    DOI: 10.1117/12.762839  

    ISSN: 0277-786X

  260. MgxZn1-xO epitaxial films grown on ZnO substrates by molecular beam epitaxy Peer-reviewed

    H. Yuji, K. Nakahara, K. Tamura, S. Akasaka, A. Sasaki, T. Tanabe, H. Takasu, T. Onuma, S. F. Chichibu, A. Tsukazaki, A. Ohtomo, M. Kawasaki

    ZINC OXIDE MATERIALS AND DEVICES III 6895 2008

    DOI: 10.1117/12.774974  

    ISSN: 0277-786X

  261. Helicon-wave-excited plasma sputtering deposition of CuAlO2 thin films Peer-reviewed

    Satoru Takahata, Takashi Imao, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 5, NO 9 5 (9) 3101-+ 2008

    DOI: 10.1002/pssc.200779181  

    ISSN: 1862-6351

  262. Impacts of dislocation bending and impurity incorporation on the local cathodoluminescence spectra of GaN grown by ammonothermal method Invited Peer-reviewed

    S. F. Chichibu, T. Onuma, T. Hashimoto, K. Fujito, F. Wu, J. S. Speck, S. Nakamura

    APPLIED PHYSICS LETTERS 91 (25) 251911 1-3 2007/12

    DOI: 10.1063/1.2825471  

    ISSN: 0003-6951

  263. Impact of strain on free-exciton resonance energies in wurtzite AlN Invited Peer-reviewed

    Hirokatsu Ikeda, Takahiro Okamura, Kodai Matsukawa, Takayuki Sota, Mariko Sugawara, Takuya Hoshi, Pablo Cantu, Rajat Sharma, John F. Kaeding, Stacia Keller, Umesh K. Mishra, Kei Kosaka, Keiichiro Asai, Shigeaki Sumiya, Tomohiko Shibata, Mitsuhiro Tanaka, James S. Speck, Steven P. DenBaars, Shuji Nakamura, Takahiro Koyama, Takeyoshi Onuma, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 102 (12) 123707 1-5 2007/12

    DOI: 10.1063/1.2825577  

    ISSN: 0021-8979

  264. Impacts of dislocation bending and impurity incorporation on the local cathodoluminescence spectra of GaN grown by ammonothermal method Peer-reviewed

    S. F. Chichibu, T. Onuma, T. Hashimoto, K. Fujito, F. Wu, J. S. Speck, S. Nakamura

    APPLIED PHYSICS LETTERS 91 (25) 2007/12

    DOI: 10.1063/1.2825471  

    ISSN: 0003-6951

  265. Impact of strain on free-exciton resonance energies in wurtzite AlN Peer-reviewed

    Hirokatsu Ikeda, Takahiro Okamura, Kodai Matsukawa, Takayuki Sota, Mariko Sugawara, Takuya Hoshi, Pablo Cantu, Rajat Sharma, John F. Kaeding, Stacia Keller, Umesh K. Mishra, Kei Kosaka, Keiichiro Asai, Shigeaki Sumiya, Tomohiko Shibata, Mitsuhiro Tanaka, James S. Speck, Steven P. DenBaars, Shuji Nakamura, Takahiro Koyama, Takeyoshi Onuma, Shigefusa F. Chichibu

    JOURNAL OF APPLIED PHYSICS 102 (12) 2007/12

    DOI: 10.1063/1.2825577  

    ISSN: 0021-8979

  266. Effects of the high-temperature-annealed self-buffer layer on the improved properties of ZnO epilayers grown by helicon-wave-excited-plasma sputtering epitaxy on a-plane sapphire substrates Peer-reviewed

    T. Koyama, A. N. Fouda, N. Shibata, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 102 (7) 073505-1-4 2007/10

    DOI: 10.1063/1.2786090  

    ISSN: 0021-8979

    eISSN: 1089-7550

  267. Quantum-confined Stark effects in the m-plane In0.15Ga0.85N/GaN multiple quantum well blue light-emitting diode fabricated on low defect density freestanding GaN substrate Peer-reviewed

    T. Onuma, H. Amaike, M. Kubota, K. Okamoto, H. Ohta, J. Ichihara, H. Takasu, S. F. Chichibu

    APPLIED PHYSICS LETTERS 91 (18) 181903-1-3 2007/10

    DOI: 10.1063/1.2802042  

    ISSN: 0003-6951

  268. Effects of the high-temperature-annealed self-buffer layer on the improved properties of ZnO epilayers grown by helicon-wave-excited-plasma sputtering epitaxy on a-plane sapphire substrates Peer-reviewed

    T. Koyama, A. N. Fouda, N. Shibata, S. F. Chichibu

    JOURNAL OF APPLIED PHYSICS 102 (7) 2007/10

    DOI: 10.1063/1.2786090  

    ISSN: 0021-8979

    eISSN: 1089-7550

  269. Quantum-confined Stark effects in the m-plane In0.15Ga0.85N/GaN multiple quantum well blue light-emitting diode fabricated on low defect density freestanding GaN substrate Peer-reviewed

    T. Onuma, H. Amaike, M. Kubota, K. Okamoto, H. Ohta, J. Ichihara, H. Takasu, S. F. Chichibu

    APPLIED PHYSICS LETTERS 91 (18) 2007/10

    DOI: 10.1063/1.2802042  

    ISSN: 0003-6951

  270. Al- and N-polar AlN layers grown on c-plane sapphire substrates by modified flow-modulation MOCVD Peer-reviewed

    M. Takeuchi, H. Shimizu, R. Kajitani, K. Kawasaki, T. Kinoshita, K. Takada, H. Murakami, Y. Kumagai, A. Koukitu, T. Koyama, S. F. Chichibu, Y. Aoyagi

    JOURNAL OF CRYSTAL GROWTH 305 (2) 360-365 2007/07

    DOI: 10.1016/j.jcrysgro.2007.04.004  

    ISSN: 0022-0248

    eISSN: 1873-5002

  271. Atomic distribution in InxGa1-xN single quantum wells studied by extended x-ray absorption fine structure Peer-reviewed

    Takafumi Miyanaga, Takashi Azuhata, Shigenobu Matsuda, Yoshikazu Ishikawa, Shinya Sasaki, Tomoya Uruga, Hajime Tanida, Shigefusa F. Chichibu, Takayuki Sota

    PHYSICAL REVIEW B 76 (3) 035314 1-5 2007/07

    DOI: 10.1103/PhysRevB.76.035314  

    ISSN: 1098-0121

  272. Atomic distribution in InxGa1-xN single quantum wells studied by extended x-ray absorption fine structure Peer-reviewed

    Takafumi Miyanaga, Takashi Azuhata, Shigenobu Matsuda, Yoshikazu Ishikawa, Shinya Sasaki, Tomoya Uruga, Hajime Tanida, Shigefusa F. Chichibu, Takayuki Sota

    PHYSICAL REVIEW B 76 (3) 2007/07

    DOI: 10.1103/PhysRevB.76.035314  

    ISSN: 1098-0121

  273. Relation between AI vacancies and deep emission bands in AIN epitaxial films grown by NH3-source molecular beam epitaxy Peer-reviewed

    T. Koyama, M. Sugawara, T. Hoshi, A. Uedono, J. F. Kaeding, R. Sharma, S. Nakamura, S. F. Chichibua

    APPLIED PHYSICS LETTERS 90 (24) 241914-1-3 2007/06

    DOI: 10.1063/1.2748315  

    ISSN: 0003-6951

  274. Growth of single-phase CuInGaSe2 photo-absorbing alloy films by the selenization method using diethylselenide as a less-hazardous Se source Peer-reviewed

    M. Sugiyama, A. Kinoshita, M. Fukaya, H. Nakanishi, S. F. Chichibu

    THIN SOLID FILMS 515 (15) 5867-5870 2007/05

    DOI: 10.1016/j.tsf.2006.12.061  

    ISSN: 0040-6090

  275. Recombination dynamics of excitons in Mg0.11Zn0.89O alloy films grown using the high-temperature-annealed self-buffer layer by laser-assisted molecular-beam epitaxy Peer-reviewed

    Masashi Kubota, Takeyoshi Onuma, Atsushi Tsukazaki, Akira Ohtomo, Masashi Kawasaki, Takayuki Sota, Shigefusa F. Chichibu

    APPLIED PHYSICS LETTERS 90 (14) 141903-1-141903-3 2007/04

    DOI: 10.1063/1.2719168  

    ISSN: 0003-6951

  276. Continuous-wave operation of m-plane InGaN multiple quantum well laser diodes Peer-reviewed

    Kuniyoshi Okamoto, Hiroaki Ohta, Shigefusa F. Chichibu, Jun Ichihara, Hidemi Takasu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 46 (8-11) L187-L189 2007/03

    DOI: 10.1143/JJAP.46.L187  

    ISSN: 0021-4922

  277. Radiative and nonradiative lifetimes in nonpolar m -plane Inx Ga1-x NGaN multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth

    Onuma, T., Koyama, T., Chakraborty, A., McLaurin, M., Haskell, B.A., Fini, P.T., Keller, S., Denbaars, S.P., Speck, J.S., Nakamura, S., Mishra, U.K., Sota, T., Chichibu, S.F.

    Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 25 (4) 2007

    DOI: 10.1116/1.2746354  

  278. Papers presented at the International Workshop on Nitride Semiconductors 2006, IWN 2006: Preface

    Akimoto, K., Chichibu, S., Suemasu, T.

    Physica Status Solidi (C) Current Topics in Solid State Physics 4 (7) 2204-2204 2007

  279. Cross-sectional spatially resolved cathodoluminescence study of cubic GaN films grown by metalorganic vapor phase epitaxy on free-standing (001) 3C-SiC and GaAs substrates Peer-reviewed

    T. Onuma, T. Nozaka, H. Yamaguchi, T. Suzuki, S. F. Chichibu

    JOURNAL OF CRYSTAL GROWTH 298 193-197 2007/01

    DOI: 10.1016/j.jcrysgro.2006.10.045  

    ISSN: 0022-0248

  280. Increased power from deep ultraviolet LEDs via precursor selection Peer-reviewed

    C. Moe, T. Onuma, K. Vampola, N. Fellows, H. Masui, S. Newman, S. Keller, S. F. Chichibu, S. P. DenBaars, D. Emerson

    JOURNAL OF CRYSTAL GROWTH 298 710-713 2007/01

    DOI: 10.1016/j.jcrysgro.2006.10.126  

    ISSN: 0022-0248

  281. Coherent manipulation of A and B excitons in GaN Peer-reviewed

    T. Ishiguro, Y. Toda, S. Adachi, K. Hazu, T. Sota, S. F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4 NO 7 2007 4 (7) 2776-+ 2007

    DOI: 10.1002/pssc.200674741  

    ISSN: 1862-6351

  282. Origin of localized excitons in In-containing three-dimensional bulk (Al,In,Ga)N alloy films probed by time-resolved photoluminescence and monoenergetic positron annihilation techniques Peer-reviewed

    S. F. Chichibu, A. Uedono, T. Onuma, B. A. Haskell, A. Chakraborty, T. Koyama, P. T. Fini, S. Keller, S. P. Denbaars, J. S. Speck, U. K. Mishra, S. Nakamura, S. Yamaguchi, S. Kamiyama, H. Amano, I. Akasaki, J. Han, T. Sota

    PHILOSOPHICAL MAGAZINE 87 (13) 2019-2039 2007

    DOI: 10.1080/14786430701241689  

    ISSN: 1478-6435

  283. Local structure around in atoms in InxGa1-xN multi-quantum-wells studied by XAFS Peer-reviewed

    Shinya Sasaki, Takafumi Miyanaga, Takashi Azuhata, Tomoya Uruga, Hajime Tanida, Shigefusa F. Chichibu, Takayuki Sota

    X-RAY ABSORPTION FINE STRUCTURE-XAFS13 882 499-+ 2007

    ISSN: 0094-243X

  284. Recombination dynamics of excitons in Mg0.11 Zn0.89 O alloy films grown using the high-temperature-annealed self-buffer layer by laser-assisted molecular-beam epitaxy Peer-reviewed

    Masashi Kubota, Takeyoshi Onuma, Atsushi Tsukazaki, Akira Ohtomo, Masashi Kawasaki, Takayuki Sota, Shigefusa F. Chichibu

    Applied Physics Letters 90 (14) 2007

    DOI: 10.1063/1.2719168  

    ISSN: 0003-6951

  285. Origin of defect-insensitive emission probability in In-containing (Al, In, Ga) N alloy semiconductors Peer-reviewed

    Shigefusa F. Chichibu, Akira Uedono, Takeyoshi Onuma, Benjamin A. Haskell, Arpan Chakraborty, Takahiro Koyama, Paul T. Fini, Stacia Keller, Steven P. Denbaars, James S. Speck, Umesh K. Mishra, Shuji Nakamura, Shigeo Yamaguchi, Satoshi Kamiyama, Hiroshi Amano, Isamu Akasaki, Jung Han, Takayuki Sota

    NATURE MATERIALS 5 (10) 810-816 2006/10

    DOI: 10.1038/nmat1726  

    ISSN: 1476-1122

  286. Helicon-wave-excited plasma sputtering deposition of Ga-doped ZnO transparent conducting films Peer-reviewed

    Mutsumi Sugiyama, Akira Murayama, Takashi Imao, Keita Saiki, Hisayuki Nakanishi, Shigefusa F. Chichibu

    Physica Status Solidi (A) Applications and Materials Science 203 (11) 2882-2886 2006/09

    DOI: 10.1002/pssa.200669616  

    ISSN: 1862-6300 1862-6319

  287. The use of diethylselenide as a less-hazardous source in CuInGaSe2 photoabsorbing alloy formation by selenization of metal precursors premixed with Se Peer-reviewed

    M. Sugiyama, F. B. Dejene, A. Kinoshita, M. Fukaya, Y. Maru, T. Nakagawa, H. Nakanishi, V. Alberts, S. F. Chichibu

    JOURNAL OF CRYSTAL GROWTH 294 (2) 214-217 2006/09

    DOI: 10.1016/j.jcrysgro.2006.05.062  

    ISSN: 0022-0248

  288. Helicon-wave-excited plasma sputtering deposition of Ga-doped ZnO transparent conducting films Peer-reviewed

    Mutsumi Sugiyama, Akira Murayama, Takashi Imao, Keita Saiki, Hisayuki Nakanishi, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 203 (11) 2882-2886 2006/09

    DOI: 10.1002/pssa.200669616  

    ISSN: 0031-8965

  289. Prospective emission efficiency and in-plane light polarization of nonpolar m-plane InxGa1-xN/GaN blue light emitting diodes fabricated on freestanding GaN substrates Peer-reviewed

    T. Koyama, T. Onuma, H. Masui, A. Chakraborty, B. A. Haskell, S. Keller, U. K. Mishra, J. S. Speck, S. Nakamura, S. P. DenBaars, T. Sota, S. F. Chichibu

    APPLIED PHYSICS LETTERS 89 (9) 2006/08

    DOI: 10.1063/1.2337085  

    ISSN: 0003-6951

  290. Strain-relaxation in NH 3-source molecular beam epitaxy of AlN epilayers on GaN epitaxial templates Peer-reviewed

    T. Koyama, M. Sugawara, Y. Uchinuma, J. F. Kaeding, R. Sharma, T. Onuma, S. Nakamura, S. F. Chichibu

    Physica Status Solidi (A) Applications and Materials Science 203 (7) 1603-1606 2006/05

    DOI: 10.1002/pssa.200565289  

    ISSN: 1862-6300 1862-6319

  291. Strain-relaxation in NH3-source molecular beam epitaxy of AlN epilayers on GaN epitaxial templates Peer-reviewed

    T Koyama, M Sugawara, Y Uchinuma, JF Kaeding, R Sharma, T Onuma, S Nakamura, SF Chichibu

    PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE 203 (7) 1603-1606 2006/05

    DOI: 10.1002/pssa.200565289  

    ISSN: 0031-8965

  292. Improvements in quantum efficiency of excitonic emissions in ZnO epilayers by the elimination of point defects Peer-reviewed

    SF Chichibu, T Onuma, M Kubota, A Uedono, T Sota, A Tsukazaki, A Ohtomo, M Kawasaki

    JOURNAL OF APPLIED PHYSICS 99 (9) 2006/05

    DOI: 10.1063/1.2193162  

    ISSN: 0021-8979

  293. Extremely high quantum efficiency of donor-acceptor-pair emission in N-and-B-doped 6H-SiC Peer-reviewed

    S Kamiyama, T Maeda, Y Nakamura, M Iwaya, H Amano, Akasaki, I, H Kinoshita, T Furusho, M Yoshimoto, T Kimoto, J Suda, A Henry, IG Ivanov, JP Bergman, B Monemar, T Onuma, SF Chichibu

    JOURNAL OF APPLIED PHYSICS 99 (9) 2006/05

    DOI: 10.1063/1.2195883  

    ISSN: 0021-8979

  294. Dielectric SiO2/ZrO2 distributed Bragg reflectors for ZnO microcavities prepared by the reactive helicon-wave-excited-plasma sputtering method Peer-reviewed

    SF Chichibu, T Ohmori, N Shibata, T Koyama

    APPLIED PHYSICS LETTERS 88 (16) 2006/04

    DOI: 10.1063/1.2197932  

    ISSN: 0003-6951

  295. Recombination dynamics of a 268 nm emission peak in Al0.53In0.11Ga0.36N/Al0.58In0.02Ga0.40N multiple quantum wells Peer-reviewed

    T Onuma, S Keller, SP DenBaars, JS Speck, S Nakamura, UK Mishra, T Sota, SF Chichibu

    APPLIED PHYSICS LETTERS 88 (11) 2006/03

    DOI: 10.1063/1.2186109  

    ISSN: 0003-6951

  296. Research report on the trend of optical technology.

    土屋朋信, 秋山知之, 宮本裕, 木下進, 西村信治, 増田浩一, 松尾昌一郎, 森田逸郎, 川田善正, 加園修, 川瀬晃道, 永妻忠夫, 菅博文, 西田好毅, 工藤耕治, 青柳利隆, 松井康浩, 阿南隆由, 三川孝, 榎並顕, 細川速美, 冨田茂, 北村雅季, 飯尾晋司, 笹岡千秋, 平山秀樹, 秩父重英, 本田徹, ORR Jim, 田島章雄, 豊嶋守生, 西岡到, 岡村治男, 高良秀彦, 岡本聡, 富永淳二, 三浦博, 北原弘昭, 樋口隆信, 譚小地

    光技術動向調査報告書 平成17年度 2006

  297. Growth and characterization of semipolar InGaN/GaN multiple quantum wells and light-emitting diodes on (10(1)over-bar(1)over-bar) GaN templates56 Peer-reviewed

    Arpan Chakraborty, T. Onuma, T. J. Baker, S. Keller, S. F. Chichibu, S. P. DenBaars, S. Nakamura, J. S. Speck, U. K. Mishra

    GAN, AIN, INN AND RELATED MATERIALS 892 143-+ 2006

    ISSN: 0272-9172

  298. MOCVD growth and characterization of AIGaInN nanowires and narrostructures Peer-reviewed

    J. Han, K. Kim, J. Su, M. Gherasimova, A. V. Nurmikko, S. F. Chichibu, C. Broadbridge

    GaN, AIN, InN and Related Materials 892 789-798 2006

    ISSN: 0272-9172

  299. Exciton dynamics in nonpolar (1120) InGaN/GaN multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth Peer-reviewed

    T. Onuma, A. Chakraborty, B. A. Haskell, S. Keller, T. Sota, U. K. Mishra, S. P. DenBaars, J. S. Speck, S. Nakamura, S. F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 6 3 (6) 2082-2086 2006

    DOI: 10.1002/pssc.200565444  

    ISSN: 1862-6351

  300. Growth and characterization of semipolar InGaN/GaN multiple quantum wells and light-emitting diodes on (10(1)over-bar(1)over-bar) GaN templates Peer-reviewed

    Arpan Chakraborty, T. Onuma, T. J. Baker, S. Keller, S. F. Chichibu, S. P. DenBaars, S. Nakamura, J. S. Speck, U. K. Mishra

    PROGRESS IN SEMICONDUCTOR MATERIALS V-NOVEL MATERIALS AND ELECTRONIC AND OPTOELECTRONIC APPLICATIONS 891 231-+ 2006

    ISSN: 0272-9172

  301. Influence of the stacking order on structural features of the Cu-In-Ga-Se precursors for formation of Cu(In,Ga)Se-2 thin films prepared by thermal reaction of InSe/Cu/GaSe alloys to elemental Se vapor and diethylselenide gas Peer-reviewed

    F. B. Dejene, M. Sugiyama, H. Nakanishi, V. Alberts, S. F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 8 3 (8) 2572-+ 2006

    DOI: 10.1002/pssc.200669657  

    ISSN: 1862-6351

  302. Use of diethylselenide for the preparation of CuInGaSe2 films by selenization of metal precursors premixed with Se Peer-reviewed

    Mutsumi Sugiyama, Francis B. Dejene, Atsuki Kinoshita, Masahiro Fukaya, Vivian Alberts, Hisayuki Nakanishi, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 8 3 (8) 2543-+ 2006

    DOI: 10.1002/pssc.200669615  

    ISSN: 1862-6351

  303. Preparation of high Ga-content CuInGaSe2 films by selenization of metal precursors using diethylselenide as a less-hazardous source Peer-reviewed

    Atsuki Kinoshita, Masahiro Fukaya, Hisayuki Nakanishi, Mutsumi Sugiyama, Shigefusa F. Chichibu

    PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 8 3 (8) 2539-+ 2006

    DOI: 10.1002/pssc.200669645  

    ISSN: 1862-6351

  304. Fabrication of p-(CuGaS2/n-ZnO : Al heterojunction light-emitting diode grown by metalorganic vapor phase epitaxy and helicon-wave-excited-plasma sputtering methods Peer-reviewed

    SF Chichibu, T Ohmori, N Shibata, T Koyama, T Onuma

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 66 (11) 1868-1871 2005/11

    DOI: 10.1016/j.jpcs.2005.09.007  

    ISSN: 0022-3697

  305. Selected topics in applied physics III - Physics of UV materials and devices and their applications Peer-reviewed

    O Ueda, H Amano, S Fujita, K Kishino, K Hiramatsu, M Kawasaki, S Chichibu, S Niki, H Hirayama, J Speck, A Hangleiter, M Kneissl

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44 (10) VII-VII 2005/10

    ISSN: 0021-4922

  306. Growth of AlGaN nanowires by metalorganic chemical vapor deposition Peer-reviewed

    J Su, M Gherasimova, G Cui, H Tsukamoto, J Han, T Onuma, M Kurimoto, SF Chichibu, C Broadbridge, Y He, AV Nurmikko

    APPLIED PHYSICS LETTERS 87 (18) 2005/10

    DOI: 10.1063/1.2126113  

    ISSN: 0003-6951

  307. Reduction of Defects in Cubic GaN Epilayers Grown by MOVPE by the Insertion of AlGaN/GaN Superlattices

    秩父重英, 鈴木智士, 野坂大樹, 杉山睦, 尾沼猛儀, 知京豊裕, 上殿明良

    日本結晶成長学会誌 32 (3) 207-208 2005/08/17

    Publisher: The Japanese Association for Crystal Growth (JACG)

    DOI: 10.19009/jjacg.32.3_207  

    ISSN: 0385-6275

    More details Close

    Al_xGaN_<1-x>/GaN superlattice (SL) insertion was shown to improve the structural homogeneity and photoluminescence (PL) lifetime of cubic (c-) GaN epilayers on (001) GaAs substrates due to the reduction in structural and nonradiative defects during low-pressure metalorganic vapor phase epitaxy (MOVPE). The density or size of Ga-vacancy (V_<Ga>)-related defects was also significantly reduced by the SL insertion. Correlation between the lifetime and point defect species was made using time-resolved PL and monoenergetic positron annihilation measurements.

  308. Exciton-polariton spectra and limiting factors for the room-temperature photoluminescence efficiency in ZnO Peer-reviewed

    SF Chichibu, A Uedono, A Tsukazaki, T Onuma, M Zamfirescu, A Ohtomo, A Kavokin, G Cantwell, CW Litton, T Sota, M Kawasaki

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 20 (4) S67-S77 2005/04

    DOI: 10.1088/0268-1242/20/4/009  

    ISSN: 0268-1242

  309. Measurements of exciton-polariton dynamics in ZnO by using nonlinear spectroscopic techniques Peer-reviewed

    K Hazu, S Adachi, T Sota, SF Chichibu

    JOURNAL OF LUMINESCENCE 112 (1-4) 7-10 2005/04

    DOI: 10.1016/j.jlumin.2004.09.033  

    ISSN: 0022-2313

    eISSN: 1872-7883

  310. Localized exciton dynamics in nonpolar (1120) InxGa1-xN multiple quantum wells grown on GaN templates prepared by lateral epitaxial overgrowth Peer-reviewed

    T Onuma, A Chakraborty, BA Haskell, S Keller, SP DenBaars, JS Speck, S Nakamura, UK Mishra, T Sota, SF Chichibu

    APPLIED PHYSICS LETTERS 86 (15) 2005/04

    DOI: 10.1063/1.1900947  

    ISSN: 0003-6951

  311. Vacancy-type defects in Si-doped InN grown by plasma-assisted molecular-beam epitaxy probed using monoenergetic positron beams Peer-reviewed

    A Uedono, SF Chichibu, M Higashiwaki, T Matsui, T Ohdaira, R Suzuki

    JOURNAL OF APPLIED PHYSICS 97 (4) 2005/02

    DOI: 10.1063/1.1845575  

    ISSN: 0021-8979

    eISSN: 1089-7550

  312. Reduction of bound-state and nonradiative defect densities in nonpolar (1120) AlGaN/GaN quantum wells by the use of lateral epitaxial overgrowth technique Peer-reviewed

    S. F. Chichibu, T. Koida, M. D. Craven, B. A. Haskell, T. Onuma, T. Sota, J. S. Speck, S. P. DenBaars, S. Nakamura

    Physica Status Solidi C: Conferences 2 (7) 2700-2703 2005

    DOI: 10.1002/pssc.200461423  

    ISSN: 1610-1634

  313. Repeated temperature modulation epitaxy for p-type doping and light-emitting diode based on ZnO Peer-reviewed

    A Tsukazaki, A Ohtomo, T Onuma, M Ohtani, T Makino, M Sumiya, K Ohtani, SF Chichibu, S Fuke, Y Segawa, H Ohno, H Koinuma, M Kawasaki

    NATURE MATERIALS 4 (1) 42-46 2005/01

    DOI: 10.1038/nmat1284  

    ISSN: 1476-1122

    eISSN: 1476-4660

  314. Limiting factors of room-temperature nonradiative photoluminescence lifetime in polar and nonpolar GaN studied by time-resolved photoluminescence and slow positron annihilation techniques Peer-reviewed

    SF Chichibu, A Uedono, T Onuma, T Sota, BA Haskell, SP DenBaars, JS Speck, S Nakamura

    APPLIED PHYSICS LETTERS 86 (2) 2005/01

    DOI: 10.1063/1.1851619  

    ISSN: 0003-6951

  315. Blue light-emitting diode based on ZnO Peer-reviewed

    A Tsukazaki, M Kubota, A Ohtomo, T Onuma, K Ohtani, H Ohno, SF Chichibu, M Kawasaki

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 44 (20-23) L643-L645 2005

    DOI: 10.1143/JJAP.44.L643  

    ISSN: 0021-4922

  316. Biexcitons and their dephasing processes in ZnO Peer-reviewed

    S Adachi, K Hazu, T Sota, S Chichibu, G Cantwell, DC Reynolds, CW Litton

    FOURTH INTERNATIONAL CONFERENCE ON PHYSICS OF LIGHT-MATTER COUPLING IN NANOSTRUCTURES (PLMCN4) 2 (2) 890-895 2005

    DOI: 10.1002/pssc.200460332  

    ISSN: 1862-6351

  317. Reduction of bound-state and nonradiative defect densities in nonpolar (11(-)20) AlGaN/GaN quantum wells by the use of lateral epitaxial overgrowth technique Peer-reviewed

    SF Chichibu, T Koida, MD Craven, BA Haskell, T Onuma, T Sota, JS Speck, SP DenBaars, S Nakamura

    PHYSICA STATUS SOLIDI C - CONFERENCES AND CRITICAL REVIEWS, VOL 2, NO 7 2 (7) 2700-2703 2005

    DOI: 10.1002/pssc.200461423  

    ISSN: 1862-6351

  318. Vapor-liquid-solid growth of III-Nitride nanowires and heterostructures by metal-organic chemical vapor deposition Peer-reviewed

    J Su, M Gherasimova, G Cui, J Han, S Lim, D Ciuparu, L Pfefferle, Y He, AV Nurmikko, C Broadbridge, A Lehman, T Onuma, M Kurimoto, SF Chichibu

    GaN, AIN, InN and Their Alloys 831 753-758 2005

    ISSN: 0272-9172

  319. Reduced nonradiative defect densities in ZnO epilayers grown on Si substrates by the use of ZnS epitaxial buffer layers

    Onuma, T, Chichibu, SF, Uedono, A

    Appl. Phys. Lett./AIP 85 (23), pp.5586-5588 2004/12

  320. Reduced defect densities in the ZnO epilayer grown on Si substrates by laser-assisted molecular-beam epitaxy using a ZnS epitaxial buffer layer Peer-reviewed

    T Onuma, SF Chichibu, A Uedono, YZ Yoo, T Chikyow, T Sota, M Kawasaki, H Koinuma

    APPLIED PHYSICS LETTERS 85 (23) 5586-5588 2004/12

    DOI: 10.1063/1.1832734  

    ISSN: 0003-6951

  321. Reduction of point defect density in cubic GaN epilayers on (001) GaAs substrates using AlxGa1-xN/GaN superlattice underlayers Peer-reviewed

    SF Chichibu, M Sugiyama, T Nozaka, T Suzuki, T Onuma, K Nakajima, T Aoyama, M Sumiya, T Chikyow, A Uedono

    JOURNAL OF CRYSTAL GROWTH 272 (1-4) 481-488 2004/12

    DOI: 10.1016/j.jcrysgro.2004.08.086  

    ISSN: 0022-0248

    eISSN: 1873-5002

  322. Greenish-white electroluminescence from p-type CuGaS2 heterojunction diodes using n-type ZnO as an electron injector Peer-reviewed

    SF Chichibu, T Ohmori, N Shibata, T Koyama, T Onuma

    APPLIED PHYSICS LETTERS 85 (19) 4403-4405 2004/11

    DOI: 10.1063/1.1818333  

    ISSN: 0003-6951

  323. Direct comparison of photoluminescence lifetime and defect densities in ZnO epilayers studied by time-resolved photoluminescence and slow positron annihilation techniques Peer-reviewed

    T Koida, A Uedono, A Tsukazaki, T Sota, M Kawasaki, SF Chichibu

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 201 (12) 2841-2845 2004/09

    DOI: 10.1002/pssa.200405035  

    ISSN: 0031-8965

  324. Phonon scattering of excitons and biexcitons in ZnO Peer-reviewed

    K Hazu, T Sota, S Adachi, S Chichibu, G Cantwell, DC Reynolds, CW Litton

    JOURNAL OF APPLIED PHYSICS 96 (2) 1270-1272 2004/07

    DOI: 10.1063/1.1760831  

    ISSN: 0021-8979

  325. Improved surface morphology in GaN homoepitaxy by NH3-source molecular-beam epitaxy Peer-reviewed

    T Koida, Y Uchinuma, J Kikuchi, KR Wang, M Terazaki, T Onuma, JF Keading, R Sharma, S Nakamura, SF Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 22 (4) 2158-2164 2004/07

    DOI: 10.1116/1.1775202  

    ISSN: 1071-1023

  326. In situ monitoring of Zn* and Mg* species during helicon-wave-excited-plasma sputtering epitaxy of ZnO and Mg0.06Zn0.94O films Peer-reviewed

    T Koyama, T Ohmori, N Shibata, T Onuma, SF Chichibu

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 22 (4) 2220-2225 2004/07

    DOI: 10.1116/1.1768522  

    ISSN: 1071-1023

  327. Importance of lattice matching and surface arrangement for the helicon-wave-excited-plasma sputtering epitaxy of ZnO Peer-reviewed

    T Koyama, SF Chichibu

    JOURNAL OF APPLIED PHYSICS 95 (12) 7856-7861 2004/06

    DOI: 10.1063/1.1739294  

    ISSN: 0021-8979

  328. Excitonic optical spectra of ZnO, a group-II oxide semiconductor

    秩父重英, 宗田孝之

    応用物理 73 (5) 624-628 2004/05/10

    Publisher:

    ISSN: 0369-8009

  329. Impact of the k-linear term on nonlinear optical response of the C-exciton manifold in ZnO Peer-reviewed

    K Hazu, K Torii, T Sota, S Adachi, SF Chichibu, G Cantwell, DC Reynolds, CW Litton

    JOURNAL OF APPLIED PHYSICS 95 (10) 5498-5501 2004/05

    DOI: 10.1063/1.1710727  

    ISSN: 0021-8979

  330. Improved quantum efficiency in nonpolar (11(2)over-bar0) AlGaN/GaN quantum wells grown on GaN prepared by lateral epitaxial overgrowth Peer-reviewed

    T Koida, SF Chichibu, T Sota, MD Craven, BA Haskell, JS Speck, SP DenBaars, S Nakamura

    APPLIED PHYSICS LETTERS 84 (19) 3768-3770 2004/05

    DOI: 10.1063/1.1738185  

    ISSN: 0003-6951

  331. Biexciton formation and exciton-exciton correlation effects in bulk ZnO Peer-reviewed

    S Adachi, K Hazu, T Sota, SF Chichibu, G Cantwell, DB Eason, DC Reynolds, CW Litton

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 19 (4) S276-S278 2004/04

    DOI: 10.1088/0268-1242/19/4/092  

    ISSN: 0268-1242

  332. Radiative and nonradiative processes in strain-free AlxGa1-xN films studied by time-resolved photoluminescence and positron annihilation techniques Peer-reviewed

    T Onuma, SF Chichibu, A Uedono, T Sota, P Cantu, TM Katona, JF Keading, S Keller, UK Mishra, S Nakamura, SP DenBaars

    JOURNAL OF APPLIED PHYSICS 95 (5) 2495-2504 2004/03

    DOI: 10.1063/1.1644041  

    ISSN: 0021-8979

  333. Reduced defect densities in cubic GaN epilayers with AlGaN/GaN superlattice underlayers grown on (001) GaAs substrates by metalorganic vapor phase epitaxy Peer-reviewed

    M Sugiyama, T Nosaka, T Suzuki, T Koida, K Nakajima, T Aoyama, M Sumiya, T Chikyow, A Uedono, SF Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 43 (3) 958-965 2004/03

    DOI: 10.1143/JJAP.43.958  

    ISSN: 0021-4922

  334. Radiative and nonradiative excitonic transitions in nonpolar (11(2)over-bar-0) and polar (000(1)over-bar) and (0001) ZnO epilayers Peer-reviewed

    T Koida, SF Chichibu, A Uedono, T Sota, A Tsukazaki, M Kawasaki

    APPLIED PHYSICS LETTERS 84 (7) 1079-1081 2004/02

    DOI: 10.1063/1.1646749  

    ISSN: 0003-6951

  335. II-VI族酸化物半導体ZnOにおける励起子領域の光学スペクトル−III-V族窒化物系半導体GaNとの類似点と相違点−

    秩父重英, 宗田孝之

    応用物理 (研究紹介) 2004

  336. V defects of ZnO thin films grown on Si as an ultraviolet optical path Peer-reviewed

    YZ Yoo, T Sekiguchi, T Chikyow, M Kawasaki, T Onuma, SF Chichibu, JH Song, H Koinuma

    APPLIED PHYSICS LETTERS 84 (4) 502-504 2004/01

    DOI: 10.1063/1.1643535  

    ISSN: 0003-6951

  337. Critical roles of decomposition-shielding layer deposited at low temperature governing the structural and photoluminescence properties of cubic GaN epilayers grown on (001)GaAs by metalorganic vapor phase epitaxy Peer-reviewed

    M Sugiyama, T Nosaka, T Onuma, K Nakajima, P Ahmet, T Aoyama, T Chikyow, SF Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 43 (1) 106-110 2004/01

    DOI: 10.1143/JJAP.43.106  

    ISSN: 0021-4922

  338. Position controlled GaN nano-structures fabricated by low energy focused ion beam system. Peer-reviewed

    T Nagata, P Ahmet, T Koida, SF Chichibu, T Chikyow

    RADIATION EFFECTS AND ION-BEAM PROCESSING OF MATERIALS 792 605-609 2004

    ISSN: 0272-9172

  339. Influence of internal electric field on the recombination dynamics of localized excitons in an InGaN double-quantum-well laser diode wafer operated at 450 nm Peer-reviewed

    T Onuma, SF Chichibu, T Aoyama, K Nakajima, P Ahmet, T Azuhata, T Chikyow, T Sota, S Nagahama, T Mukai

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 42 (12) 7276-7283 2003/12

    DOI: 10.1143/JJAP.42.7276  

    ISSN: 0021-4922

  340. Exciton-exciton correlation effects on FWM in GaN Peer-reviewed

    S Adachi, H Sasakura, S Muto, K Hazu, T Sota, SF Chichibu, T Mukai

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 240 (2) 348-351 2003/11

    DOI: 10.1002/pssb.200303254  

    ISSN: 0370-1972

  341. Heteroepitaxy of hexagonal ZnS thin films directly on Si (111) Peer-reviewed

    YZ Yoo, T Chikyow, M Kawasaki, T Onuma, S Chichibu, H Koinuma

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 42 (11) 7029-7032 2003/11

    DOI: 10.1143/JJAP.42.7029  

    ISSN: 0021-4922

  342. Improved emission efficiency in InGaN/GaN quantum wells with compositionally-graded barriers studied by time-resolved photoluminescence spectroscopy Peer-reviewed

    T Onuma, Y Uchinuma, EK Suh, HJ Lee, T Sota, SF Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 42 (11B) L1369-L1371 2003/11

    DOI: 10.1143/JJAP.42.L1369  

    ISSN: 0021-4922

  343. Cathodoluminescence characterization of dislocations in gallium nitride using a transmission electron microscope Peer-reviewed

    N Yamamoto, H Itoh, Grillo, V, SF Chichibu, S Keller, JS Speck, SP DenBaars, UK Mishra, S Nakamura, G Salviati

    JOURNAL OF APPLIED PHYSICS 94 (7) 4315-4319 2003/10

    DOI: 10.1063/1.1598632  

    ISSN: 0021-8979

  344. Layer-by-layer growth of high-optical-quality ZnO film on atomically smooth and lattice relaxed ZnO buffer layer Peer-reviewed

    A Tsukazaki, A Ohtomo, S Yoshida, M Kawasaki, CH Chia, T Makino, Y Segawa, T Koida, SF Chichibu, H Koinuma

    APPLIED PHYSICS LETTERS 83 (14) 2784-2786 2003/10

    DOI: 10.1063/1.1615834  

    ISSN: 0003-6951

  345. In situ spectral control of Zn species during helicon-wave-excited-plasma sputtering epitaxy of ZnO Peer-reviewed

    T Koyama, T Onuma, S Chichibu

    APPLIED PHYSICS LETTERS 83 (14) 2973-2975 2003/10

    DOI: 10.1063/1.1616650  

    ISSN: 0003-6951

  346. Metalorganic vapor phase epitaxy of Cu(AlxGa1-x)(SySe1-y)(2) chalcopyrite semiconductors and their band offsets Peer-reviewed

    S Chichibu, Y Harada, M Sugiyama, H Nakanishi

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 64 (9-10) 1481-1489 2003/09

    DOI: 10.1016/S0022-3697(03)00125-2  

    ISSN: 0022-3697

  347. Interface Fermi level pinning in a Cu/p-CuGaS2 Schottky diode Peer-reviewed

    M Sugiyama, R Nakai, H Nakanishi, S Chichibu

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 64 (9-10) 1787-1790 2003/09

    DOI: 10.1016/S0022-3697(03)00144-6  

    ISSN: 0022-3697

    eISSN: 1879-2553

  348. Use of diethylselenide as a less-hazardous source for preparation of CuInSe2 thin films by selenization of metal precursors Peer-reviewed

    T Yamamoto, M Nakamura, J Ishizuki, T Deguchi, S Ando, H Nakanishi, S Chichibu

    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 64 (9-10) 1855-1858 2003/09

    DOI: 10.1016/S0022-3697(03)00146-X  

    ISSN: 0022-3697

  349. Recombination dynamics of localized excitons in cubic InxGa1-xN/GaN multiple quantum wells grown by rf-MBE on 3C-SiC substrate

    Chichibu, SF, Onuma, T, Aoyama, T

    J. Vac. Sci. Techn. B/AVS 21;4,pp.1856-1862 2003/08

  350. Recombination dynamics of localized excitons in Al1-xInxN epitaxial films on GaN templates grown by metalorganic vapor phase epitaxy Peer-reviewed

    T Onuma, S Chichibu, Y Uchinuma, T Sota, S Yamaguchi, S Kamiyama, H Amano, Akasaki, I

    JOURNAL OF APPLIED PHYSICS 94 (4) 2449-2453 2003/08

    DOI: 10.1063/1.1592868  

    ISSN: 0021-8979

    eISSN: 1089-7550

  351. Strong biexcitonic effects and exciton-exciton correlations in ZnO Peer-reviewed

    K. Hazu, T. Sota, K. Suzuki, S. Adachi, S. F. Chichibu, G. Cantwell, B. Eason, C. Reynolds, W. Litton

    Physical Review B - Condensed Matter and Materials Physics 68 (11) 2003/07/15

    DOI: 10.1103/PhysRevB.68.033205  

    ISSN: 1550-235X 1098-0121

  352. Brillouin scattering study of ZnO Peer-reviewed

    T Azuhata, M Takesada, T Yagi, A Shikanai, S Chichibu, K Torii, A Nakamura, T Sota, G Cantwell, DB Eason, CW Litton

    JOURNAL OF APPLIED PHYSICS 94 (2) 968-972 2003/07

    DOI: 10.1063/1.1586466  

    ISSN: 0021-8979

  353. Recombination dynamics of localized excitons in cubic InxGa1-xN/GaN multiple quantum wells grown by radio frequency molecular beam epitaxy on 3C-SiC substrate Peer-reviewed

    SF Chichibu, T Onuma, T Aoyama, K Nakajima, P Ahmet, T Chikyow, T Sota, SP DenBaars, S Nakamura, T Kitamura, Y Ishida, H Okumura

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 21 (4) 1856-1862 2003/07

    DOI: 10.1116/1.1593645  

    ISSN: 1071-1023

  354. Strong biexcitonic effects and exciton-exciton correlations in ZnO Peer-reviewed

    K Hazu, T Sota, K Suzuki, S Adachi, SF Chichibu, G Cantwell, DB Eason, DC Reynolds, CW Litton

    PHYSICAL REVIEW B 68 (3) 2003/07

    DOI: 10.1103/PhysRevB.68.033205  

    ISSN: 2469-9950

    eISSN: 2469-9969

  355. InGaN-based single-chip multicolor light-emitting diodes Peer-reviewed

    T Azuhata, T Homma, Y Ishikawa, SF Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 42 (5B) L497-L498 2003/05

    DOI: 10.1143/JJAP.42.L497  

    ISSN: 0021-4922

  356. Exciton-exciton interaction and heterobiexcitons in GaN Peer-reviewed

    S Adachi, S Muto, K Hazu, T Sota, K Suzuki, SF Chichibu, T Mukai

    PHYSICAL REVIEW B 67 (20) 2003/05

    DOI: 10.1103/PhysRevB.67.205212  

    ISSN: 1098-0121

  357. Defects in ZnO thin films grown on ScAlMgO4 substrates probed by a monoenergetic positron beam Peer-reviewed

    A Uedono, T Koida, A Tsukazaki, M Kawasaki, ZQ Chen, S Chichibu, H Koinuma

    JOURNAL OF APPLIED PHYSICS 93 (5) 2481-2485 2003/03

    DOI: 10.1063/1.1539915  

    ISSN: 0021-8979

  358. Influence of InN mole fraction on the recombination processes of localized excitons in strained cubic InxGa1-xN/GaN multiple quantum wells Peer-reviewed

    S Chichibu, T Onuma, T Sota, SP DenBaars, S Nakamura, T Kitamura, Y Ishida, H Okumura

    JOURNAL OF APPLIED PHYSICS 93 (4) 2051-2054 2003/02

    DOI: 10.1063/1.1535746  

    ISSN: 0021-8979

  359. Light emission versus energy gap in group-III nitrides: hydrostatic pressure studies Peer-reviewed

    T Suski, H Teisseyre, SP Lepkowski, P Perlin, H Mariette, T Kitamura, Y Ishida, H Okumura, SF Chichibu

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 235 (2) 225-231 2003/02

    DOI: 10.1002/pssb.200301561  

    ISSN: 0370-1972

  360. Effects of deposition parameters of low-temperature GaN layer on the structural and optical properties of cubic GaN epilayers grown on GaAs(001) substrates by MOVPE Peer-reviewed

    Mutsumi Sugiyama, Taiki Nosaka, Kiyomi Nakajima, Parhat Ahmet, Toyomi Aoyama, Toyohiro Chikyow, Shigefusa F. Chichibu

    Physica Status Solidi C: Conferences (7) 2099-2102 2003

    DOI: 10.1002/pssc.200303410  

    ISSN: 1610-1634

  361. Anomalous pressure dependence of light emission in cubic InGaN Peer-reviewed

    S. P. Łepkowski, T. Suski, H. Teisseyre, T. Kitamura, Y. Ishida, H. Okumura, T. Onuma, T. Koida, S. F. Chichibu

    Physica Status Solidi C: Conferences (7) 2682-2685 2003

    DOI: 10.1002/pssc.200303294  

    ISSN: 1610-1634

  362. Effects of deposition parameters of low-temperature GaN layer on the structural and optical properties of cubic GaN epilayers grown on GaAs(001) substrates by MOVPE Peer-reviewed

    M Sugiyama, T Nosaka, K Nakajima, P Ahmet, T Aoyama, T Chikyow, SF Chichibu

    5TH INTERNATIONAL CONFERENCE ON NITRIDE SEMICONDUCTORS (ICNS-5), PROCEEDINGS 0 (7) 2099-2102 2003

    DOI: 10.1002/pssc.200303410  

    ISSN: 1862-6351

  363. Anomalous pressure dependence of light emission in cubic InGaN Peer-reviewed

    SP Lepkowski, T Suski, H Teisseyre, T Kitamura, Y Ishida, H Okumura, T Onuma, T Koida, SF Chichibu

    5TH INTERNATIONAL CONFERENCE ON NITRIDE SEMICONDUCTORS (ICNS-5), PROCEEDINGS 0 (7) 2682-2685 2003

    DOI: 10.1002/pssc.200303294  

    ISSN: 1862-6351

  364. Polarized photoreflectance spectra of excitonic polaritons in a ZnO single crystal Peer-reviewed

    SF Chichibu, T Sota, G Cantwell, DB Eason, CW Litton

    JOURNAL OF APPLIED PHYSICS 93 (1) 756-758 2003/01

    DOI: 10.1063/1.1527707  

    ISSN: 0021-8979

  365. Properties of optical phonons in cubic InxGa1-xN Peer-reviewed

    K Torii, N Usukura, A Nakamura, T Sota, SF Chichibu, T Kitamura, H Okumura

    APPLIED PHYSICS LETTERS 82 (1) 52-54 2003/01

    DOI: 10.1063/1.1535273  

    ISSN: 0003-6951

  366. Correlation between the photoluminescence lifetime and defect density in bulk and epitaxial ZnO Peer-reviewed

    T Koida, SF Chichibu, A Uedono, A Tsukazaki, M Kawasaki, T Sota, Y Segawa, H Koinuma

    APPLIED PHYSICS LETTERS 82 (4) 532-534 2003/01

    DOI: 10.1063/1.1540220  

    ISSN: 0003-6951

  367. Scattering processes and dynamics of exciton-biexciton system in GaN Peer-reviewed

    S Adachi, K Hazu, T Sota, SF Chichibu, T Mukai, S Muto, K Suzuki

    ULTRAFAST PHENOMENA IN SEMICONDUCTORS VII 4992 188-201 2003

    DOI: 10.1117/12.475699  

    ISSN: 0277-786X

  368. Optical nonlinearities of excitons in ZnO single crystal Peer-reviewed

    K Hazu, T Sota, K Suzuki, S Adachi, S Chichibu

    ULTRAFAST PHENOMENA IN SEMICONDUCTORS VII 4992 257-264 2003

    DOI: 10.1117/12.475710  

    ISSN: 0277-786X

  369. Fermi-level pinning at the metal/p-type CuGaS2 interfaces Peer-reviewed

    M Sugiyama, R Nakai, H Nakanishi, S Chichibu

    JOURNAL OF APPLIED PHYSICS 92 (12) 7317-7319 2002/12

    DOI: 10.1063/1.1522488  

    ISSN: 0021-8979

    eISSN: 1089-7550

  370. Pressure coefficients of the light emission in cubic InGaN epilayers and cubic InGaN/GaN quantum wells Peer-reviewed

    T Suski, H Teisseyre, SP Lepkowski, P Perlin, T Kitamura, Y Ishida, H Okumura, SF Chichibu

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 234 (3) 759-763 2002/12

    DOI: 10.1002/1521-3951(200212)234:3<759::AID-PSSB759>3.0.CO;2-L  

    ISSN: 0370-1972

  371. Recombination dynamics of localized excitons in cubic phase InxGa1-xN/GaN multiple quantum wells on 3C-SiC/Si(001) Peer-reviewed

    SF Chichibu, T Onuma, T Kitamura, T Sota, SP DenBaars, S Nakamura, H Okumura

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 234 (3) 746-749 2002/12

    DOI: 10.1002/1521-3951(200212)234:3<746::AID-PSSB746>3.0.CO;2-0  

    ISSN: 0370-1972

  372. Use of diethylselenide as a less-hazardous source for preparation of CuInSe2 photo-absorbers by selenization of metal precursors Peer-reviewed

    SF Chichibu, M Sugiyama, M Ohbasami, A Hayakawa, T Mizutani, H Nakanishi, T Negami, T Wada

    JOURNAL OF CRYSTAL GROWTH 243 (3-4) 404-409 2002/09

    DOI: 10.1016/S0022-0248(02)01558-0  

    ISSN: 0022-0248

  373. Observation of exciton-polariton emissions from a ZnO epitaxial film on the a-face of sapphire grown by radical-source molecular-beam-epitaxy Peer-reviewed

    SF Chichibu, T Sota, PJ Fons, K Ivata, A Yamada, K Matsubara, S Niki

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 41 (8B) L935-L937 2002/08

    DOI: 10.1143/JJAP.41.L935  

    ISSN: 0021-4922

  374. Different pressure coefficients of the light emission in cubic and hexagonal InGaN/GaN quantum wells Peer-reviewed

    T Suski, H Teisseyre, SP Lepkowski, P Perlin, T Kitamura, Y Ishida, H Okumura, SF Chichibu

    APPLIED PHYSICS LETTERS 81 (2) 232-234 2002/07

    DOI: 10.1063/1/1490400  

    ISSN: 0003-6951

  375. Exciton spectra of an AlN epitaxial film on (0001) sapphire substrate grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    T Onuma, SF Chichibu, T Sota, K Asai, S Sumiya, T Shibata, M Tanaka

    APPLIED PHYSICS LETTERS 81 (4) 652-654 2002/07

    DOI: 10.1063/1.1493666  

    ISSN: 0003-6951

  376. Photoreflectance and photoluminescence of exciton-polaritons in a ZnO epilayer grown on the a-face of sapphire by radical-source molecular-beam epitaxy Peer-reviewed

    SF Chichibu, T Sota, PJ Fons, K Iwata, A Yamada, K Matsubara, S Niki

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 192 (1) 171-176 2002/07

    DOI: 10.1002/1521-396X(200207)192:1<171::AID-PSSA171>3.0.CO;2-W  

    ISSN: 0031-8965

    eISSN: 1862-6319

  377. Optical nonlinearities and phase relaxation of excitons in GaN Peer-reviewed

    K. Hazu, A. Shikanai, T. Sota, K. Suzuki, S. Adachi, S. F. Chichibu, T. Mukai

    Physical Review B - Condensed Matter and Materials Physics 65 (19) 1952021-1952028 2002/05/15

    DOI: 10.1103/PhysRevB.65.195202  

    ISSN: 0163-1829

  378. Band gap energy bowing and residual strain in CuAl(SxSe1-x)(2) chalcopyrite semiconductor epilayers grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    Y Harada, H Nakanishi, SF Chichibu

    JOURNAL OF APPLIED PHYSICS 91 (9) 5909-5914 2002/05

    DOI: 10.1063/1.1468907  

    ISSN: 0021-8979

  379. Localized exciton dynamics in InGaN quantum well structures Peer-reviewed

    SF Chichibu, T Azuhata, H Okumura, A Tackeuchi, T Sota, T Mukai

    APPLIED SURFACE SCIENCE 190 (1-4) 330-338 2002/05

    DOI: 10.1016/S0169-4332(01)00907-2  

    ISSN: 0169-4332

  380. Optical nonlinearities and phase relaxation of excitons in GaN Peer-reviewed

    K Hazu, A Shikanai, T Sota, K Suzuki, S Adachi, SF Chichibu, T Mukai

    PHYSICAL REVIEW B 65 (19) 2002/05

    DOI: 10.1103/PhysRevB.65.195202  

    ISSN: 1098-0121

  381. Optical properties of β-FeSi2 under pressure

    K. Takarabe, R. Teranishi, J. Oinuma, Y. Mori, T. Suemasu, S. Chichibu, F. Hasegawa

    Physical Review B - Condensed Matter and Materials Physics 65 (16) 1652151-1652155 2002/04/15

    ISSN: 0163-1829

  382. Photoreflectance spectra of a ZnO heteroepitaxial film on the nearly lattice-matched ScAlMgO4 (0001) substrate grown by laser molecular-beam epitaxy Peer-reviewed

    SF Chichibu, A Tsukazaki, M Kawasaki, K Tamura, Y Segawa, T Sota, H Koinuma

    APPLIED PHYSICS LETTERS 80 (16) 2860-2862 2002/04

    DOI: 10.1063/1.1471374  

    ISSN: 0003-6951

  383. Optical properties of beta-FeSi2 under pressure Peer-reviewed

    K Takarabe, R Teranishi, J Oinuma, Y Mori, T Suemasu, S Chichibu, F Hasegawa

    PHYSICAL REVIEW B 65 (16) 2002/04

    DOI: 10.1103/PhysRevB.65.165215  

    ISSN: 1098-0121

  384. Crystal growth of AgIn1-XGaXSe2 crystals grown by a vertical gradient freeze method Peer-reviewed

    K Yoshino, H Komaki, K Itani, SF Chichibu, Y Akaki, T Ikari

    JOURNAL OF CRYSTAL GROWTH 236 (1-3) 257-260 2002/03

    DOI: 10.1016/S0022-0248(01)02134-0  

    ISSN: 0022-0248

  385. Helicon-wave-excited-plasma sputtering epitaxy of ZnO on sapphire (0001) substrates Peer-reviewed

    SF Chichibu, T Yoshida, T Onuma, H Nakanishi

    JOURNAL OF APPLIED PHYSICS 91 (2) 874-877 2002/01

    DOI: 10.1063/1.1426238  

    ISSN: 0021-8979

  386. Investigation of direct and indirect band gaps of [100]-oriented nearly strain-free beta-FeSi2 films grown by molecular-beam epitaxy Peer-reviewed

    K Takakura, N Hiroi, T Suemasu, SF Chichibu, F Hasegawa

    APPLIED PHYSICS LETTERS 80 (4) 556-558 2002/01

    DOI: 10.1063/1.1432755  

    ISSN: 0003-6951

  387. Similarities in the optical properties of hexagonal and cubic InGaN quantum wells Peer-reviewed

    SF Chichibu, T Onuma, T Kuroda, A Tackeuchi, T Sota, T Kitamura, H Nakanishi, Y Ishida, H Okumura, S Keller, UK Mishra, SP DenBaars, S Nakamura, M Sugiyama

    GAN AND RELATED ALLOYS-2001 693 481-486 2002

    ISSN: 0272-9172

  388. Piezoelectric field and its influence on the pressure behavior of the light emission from InGaN/GaN and GaN/AlGaN quantum wells Peer-reviewed

    T Suski, P Perlin, SP Lepkowski, H Teisseyre, Gorczyca, I, P Prystawko, M Leszczynski, N Grandjean, J Massies, T Kitamura, Y Ishida, SF Chichibu, H Okumura

    GAN AND RELATED ALLOYS-2001 693 487-499 2002

    ISSN: 0272-9172

  389. Exciton spectra of AlN epitaxial films Peer-reviewed

    T Onuma, SF. Chichibu, T Sota, K Asai, S Sumiya, T Shibata, M Tanaka

    GAN AND RELATED ALLOYS-2001 693 515-520 2002

    ISSN: 0272-9172

  390. Localized exciton dynamics in strained cubic In0.1Ga0.9N/GaN multiple quantum wells Peer-reviewed

    SF Chichibu, M Sugiyama, T Onuma, T Kitamura, H Nakanishi, T Kuroda, A Tackeuchi, T Sota, Y Ishida, H Okumura

    APPLIED PHYSICS LETTERS 79 (26) 4319-4321 2001/12

    DOI: 10.1063/1.1428404  

    ISSN: 0003-6951

  391. Band gap bowing and exciton localization in strained cubic InxGa1-xN films grown on 3C-SiC (001) by rf molecular-beam epitaxy Peer-reviewed

    SF Chichibu, M Sugiyama, T Kuroda, A Tackeuchi, T Kitamura, H Nakanishi, T Sota, SP DenBaars, S Nakamura, Y Ishida, H Okumura

    APPLIED PHYSICS LETTERS 79 (22) 3600-3602 2001/11

    DOI: 10.1063/1.1421082  

    ISSN: 0003-6951

  392. Optical properties of cubic InGaN/GaN multiple quantum wells on 3C-SiC substrates by radio-frequency plasma-assisted molecular beam epitaxy Peer-reviewed

    T Kitamura, Y Suzuki, Y Ishida, XQ Shen, H Nakanishi, SF Chichibu, M Shimizu

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 188 (2) 705-709 2001/11

    DOI: 10.1002/1521-396X(200112)188:2<705::AID-PSSA705>3.0.CO;2-J  

    ISSN: 0031-8965

  393. Electrical characterization at cubic AlN/GaN heterointerface grown by radio-frequency plasma-assisted molecular beam epitaxy Peer-reviewed

    T Kitamura, Y Ishida, XQ Shen, H Nakanishi, SF Chichibu, M Shimizu, H Okumura

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 228 (2) 599-602 2001/11

    DOI: 10.1002/1521-3951(200111)228:2<599::AID-PSSB599>3.3.CO;2-6  

    ISSN: 0370-1972

  394. Optical and structural studies in InGaN quantum well structure laser diodes Peer-reviewed

    SF Chichibu, T Azuhata, M Sugiyama, T Kitamura, Y Ishida, H Okumura, H Nakanishi, T Sota, T Mukai

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 19 (6) 2177-2183 2001/11

    DOI: 10.1116/1.1418404  

    ISSN: 1071-1023

  395. Green to ultraviolet photoluminescence from CuAlxGa1-xS2 chalcopyrite semiconductor heteroepitaxial alloys grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    Y Harada, H Nakanishi, SF Chichibu

    JOURNAL OF CRYSTAL GROWTH 226 (4) 473-480 2001/08

    DOI: 10.1016/S0022-0248(01)01409-9  

    ISSN: 0022-0248

  396. Current-modulated electroluminescence spectroscopy and its application to InGaN single-quantum-well blue and green light-emitting diodes Peer-reviewed

    T Azuhata, T Homma, Y Ishikawa, SF Chichibu, T Sota, T Mukai

    APPLIED PHYSICS LETTERS 79 (8) 1100-1102 2001/08

    DOI: 10.1063/1.1396312  

    ISSN: 0003-6951

  397. Excitonic polariton structures in Wurtzite GaN Peer-reviewed

    K Torii, SF Chichibu, T Deguchi, H Nakanishi, T Sota, S Nakamura

    PHYSICA B 302 268-276 2001/08

    DOI: 10.1016/S0921-4526(01)00440-9  

    ISSN: 0921-4526

  398. Photoluminescence spectra of CuGaSe2 crystals Peer-reviewed

    K Yoshino, M Sugiyama, D Maruoka, SF Chichibu, H Komaki, K Umeda, T Ikari

    PHYSICA B 302 357-363 2001/08

    DOI: 10.1016/S0921-4526(01)00454-9  

    ISSN: 0921-4526

  399. Optical and electrical properties of AgIn(SSe)(2) crystals Peer-reviewed

    K Yoshino, N Mitani, M Sugiyama, SF Chichibu, H Komaki, T Ikari

    PHYSICA B 302 349-356 2001/08

    DOI: 10.1016/S0921-4526(01)00453-7  

    ISSN: 0921-4526

  400. Study of defects in GaN grown by the two-flow metalorganic chemical vapor deposition technique using monoenergetic positron beams Peer-reviewed

    A Uedono, SF Chichibu, ZQ Chen, M Sumiya, R Suzuki, T Ohdaira, T Mikado, T Mukai, S Nakamura

    JOURNAL OF APPLIED PHYSICS 90 (1) 181-186 2001/07

    DOI: 10.1063/1.1372163  

    ISSN: 0021-8979

  401. Localized excitons in an In0.06Ga0.94N multiple-quantum-well laser diode lased at 400 nm Peer-reviewed

    SF Chichibu, T Azuhata, T Sota, T Mukai

    APPLIED PHYSICS LETTERS 79 (3) 341-343 2001/07

    DOI: 10.1063/1.1385583  

    ISSN: 0003-6951

  402. Growth and characterization of cubic InGaN epilayers on 3C-SiC by RF MBE Peer-reviewed

    T Kitamura, SH Cho, Y Ishida, T Ide, XQ Shen, H Nakanishi, S Chichibu, H Okumura

    JOURNAL OF CRYSTAL GROWTH 227 471-475 2001/07

    DOI: 10.1016/S0022-0248(01)00745-X  

    ISSN: 0022-0248

  403. ナイトライドセラミックスの新展開 (1) 立方晶III族窒化物半導体量子構造のMBE成長と評価

    奥村元, 秩父重英

    Materials Integration 14 (6) 21-26 2001/06

    Publisher:

    ISSN: 1344-7858

  404. Experimental determination of valence band discontinuities at Cu(Al,Ga)(S,Se)(2)/GaAs(001) heterointerfaces using ultraviolet photoemission spectroscopy Peer-reviewed

    M Sugiyama, H Nakanishi, SF Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 40 (5A) L428-L430 2001/05

    DOI: 10.1143/JJAP.40.L428  

    ISSN: 0021-4922

  405. Structural studies of Cu-III-VI2 chalcopyrite semiconductor heteroepitaxial films grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    Y Harada, H Nakanishi, SF Chichibu

    JOURNAL OF APPLIED PHYSICS 89 (10) 5406-5413 2001/05

    DOI: 10.1063/1.1364643  

    ISSN: 0021-8979

  406. Role of localized quantum well excitons in InGaN quantum well structure correlated with microstructural analysis

    S. F. Chichibu, T. Sota, S. Nakamura

    Materials Research Society Symposium - Proceedings 639 G9.3.6 2001

    ISSN: 0272-9172

  407. Impact of the growth polar direction on the optical properties of GaN films grown by metalorganic vapor phase epitaxy

    Setoguchi, A., Yoshimura, K., Sumiya, M., Uedono, A., Chichibu, S.F.

    Materials Research Society Symposium - Proceedings 639 2001

  408. Optical and structural studies in InGaN quantum well structure laser diodes Peer-reviewed

    Chichibu, S.F., Azuhata, T., Sugiyama, M., Kitamura, T., Ishida, Y., Okumura, H., Nakanishi, H., Sota, T., Mukai, T.

    Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures 19 (6) 2177-2183 2001

    DOI: 10.1116/1.1418404  

    ISSN: 0734-211X

  409. High temperature growth of ZnS films on bare Si and transformation of ZnS to ZnO by thermal oxidation Peer-reviewed

    YZ Yoo, Y Osaka, T Fukumura, Z Jin, M Kawasaki, H Koinuma, T Chikyow, P Ahmet, A Setoguchi, SF Chichibu

    APPLIED PHYSICS LETTERS 78 (5) 616-618 2001/01

    DOI: 10.1063/1.1344572  

    ISSN: 0003-6951

  410. Evidence of localization effects in InGaN single-quantum-well ultraviolet light-emitting diodes (vol 76, pg 1671, 2000) Peer-reviewed

    SF Chichibu, K Wada, J Mullhauser, O Brandt, KH Ploog, T Mizutani, A Setoguchi, R Nakai, M Sugiyama, H Nakanishi, K Torii, T Deguchi, T Sota, S Nakamura

    APPLIED PHYSICS LETTERS 78 (5) 679-679 2001/01

    DOI: 10.1063/1.1343504  

    ISSN: 0003-6951

  411. Impact of growth polar direction on the optical properties of GaN grown by metalorganic vapor phase epitaxy Peer-reviewed

    SF Chichibu, A Setoguchi, A Uedono, K Yoshimura, M Sumiya

    APPLIED PHYSICS LETTERS 78 (1) 28-30 2001/01

    DOI: 10.1063/1.1337641  

    ISSN: 0003-6951

  412. Impact of internal electric field and localization effect on quantum well excitons in AlGaN/GaN/InGaN light emitting diodes Peer-reviewed

    SF Chichibu, T Sota, K Wada, O Brandt, KH Ploog, SP DenBaars, S Nakamura

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 183 (1) 91-98 2001/01

    DOI: 10.1002/1521-396X(200101)183:1<91::AID-PSSA91>3.0.CO;2-L  

    ISSN: 0031-8965

  413. Optical absorption spectra of beta-FeSi2 under pressure Peer-reviewed

    K Takarabe, R Teranisi, J Oinuma, Y Mori, T Suemasu, S Chichibu, F Hasegawa

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 223 (1) 259-263 2001/01

    DOI: 10.1002/1521-3951(200101)223:1<259::AID-PSSB259>3.0.CO;2-F  

    ISSN: 0370-1972

  414. Forward Raman scattering by quasilongitudinal optical phonons in GaN Peer-reviewed

    T Azuhata, M Ono, K Torii, T Sota, SF Chichibu, S Nakamura

    JOURNAL OF APPLIED PHYSICS 88 (9) 5202-5205 2000/11

    DOI: 10.1063/1.1316056  

    ISSN: 0021-8979

  415. Localized quantum well excitons in InGaN single-quantum-well amber light-emitting diodes Peer-reviewed

    SF Chichibu, T Azuhata, T Sota, T Mukai, S Nakamura

    JOURNAL OF APPLIED PHYSICS 88 (9) 5153-5157 2000/11

    DOI: 10.1063/1.1314906  

    ISSN: 0021-8979

  416. Structural studies of CuAlSe2, and CuAlS2 chalcopyrites at high pressures Peer-reviewed

    RS Kumar, A Sekar, NV Jaya, S Natarajan, S Chichibu

    JOURNAL OF ALLOYS AND COMPOUNDS 312 (1-2) 4-8 2000/11

    DOI: 10.1016/S0925-8388(00)00909-9  

    ISSN: 0925-8388

  417. Raman scattering from phonon-polaritons in GaN Peer-reviewed

    K. Torii, M. Ono, T. Sota, T. Azuhata, S. F. Chichibu, S. Nakamura

    Physical Review B - Condensed Matter and Materials Physics 62 (16) 10861-10866 2000/10/15

    DOI: 10.1103/PhysRevB.62.10861  

    ISSN: 0163-1829

  418. Raman scattering from phonon-polaritons GaN Peer-reviewed

    K Torii, M Ono, T Sota, T Azuhata, SF Chichibu, S Nakamura

    PHYSICAL REVIEW B 62 (16) 10861-10866 2000/10

    DOI: 10.1103/PhysRevB.62.10861  

    ISSN: 2469-9950

    eISSN: 2469-9969

  419. Structural analysis of InxGa1-xN single quantum wells by coaxial-impact collision ion scattering spectroscopy Peer-reviewed

    M Sumiya, S Nakamura, SF Chichibu, K Mizuno, M Furusawa, M Yoshimoto

    APPLIED PHYSICS LETTERS 77 (16) 2512-2514 2000/10

    DOI: 10.1063/1.1318933  

    ISSN: 0003-6951

  420. An attenuated-total-reflection study on the surface phonon-polariton in GaN Peer-reviewed

    K Torii, T Koga, T Sota, T Azuhata, SF Chichibu, S Nakamura

    JOURNAL OF PHYSICS-CONDENSED MATTER 12 (31) 7041-7044 2000/08

    DOI: 10.1088/0953-8984/12/31/305  

    ISSN: 0953-8984

  421. Effective localization of quantum well excitons in InGaN quantum well structures with high InN mole fraction

    SF Chichibu, A Setoguchi, T Azuhata, J Mullhauser, M Sugiyama, T Mizutani, T Deguchi, H Nakanishi, T Sota, O Brandt, KH Ploog, T Mukai, S Nakamura

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 180 (1) 321-325 2000/07

    ISSN: 0031-8965

  422. Optical properties of CuGaSe2 and CuAlSe2 layers epitaxially grown on Cu(In0.04Ga0.96)Se-2 substrates Peer-reviewed

    S Shirakata, S Chichibu, H Miyake, K Sugiyama

    JOURNAL OF APPLIED PHYSICS 87 (10) 7294-7302 2000/05

    DOI: 10.1063/1.372983  

    ISSN: 0021-8979

  423. Photoluminescence of CuGaS2 epitaxial layers grown by metalorganic vapor phase epitaxy Peer-reviewed

    S Shirakata, S Chichibu

    JOURNAL OF APPLIED PHYSICS 87 (8) 3793-3799 2000/04

    DOI: 10.1063/1.372416  

    ISSN: 0021-8979

    eISSN: 1089-7550

  424. Comparison of optical properties of GaN/AlGaN and InGaN/AlGaN single quantum wells Peer-reviewed

    SF Chichibu, A Shikanai, T Deguchi, A Setoguchi, R Nakai, H Nakanishi, K Wada, SP DenBaars, T Sota, S Nakamura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 39 (4B) 2417-2424 2000/04

    DOI: 10.1143/JJAP.39.2417  

    ISSN: 0021-4922

  425. Evidence of localization effects in InGaN single-quantum-well ultraviolet light-emitting diodes Peer-reviewed

    SF Chichibu, K Wada, J Mullhauser, O Brandt, KH Ploog, T Mizutani, A Setoguchi, R Nakai, M Sugiyama, H Nakanishi, K Korii, T Deguchi, T Sota, S Nakamura

    APPLIED PHYSICS LETTERS 76 (13) 1671-1673 2000/03

    DOI: 10.1063/1.126131  

    ISSN: 0003-6951

  426. Photoreflectance spectra of excitonic polaritons in GaN substrate prepared by lateral epitaxial overgrowth Peer-reviewed

    SF Chichibu, K Torii, T Deguchi, T Sota, A Setoguchi, H Nakanishi, T Azuhata, S Nakamura

    APPLIED PHYSICS LETTERS 76 (12) 1576-1578 2000/03

    DOI: 10.1063/1.126100  

    ISSN: 0003-6951

  427. Growth and characterization of cubic InGaN/GaN multiple quantum wells on 3C-SiC by RF-MBE Peer-reviewed

    T Kitamura, SH Cho, Y Ishida, XQ Shen, H Nakanishi, S Chichibu, H Okumura

    PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON NITRIDE SEMICONDUCTORS 1 93-96 2000

  428. Photoreflectance spectra of excitonic polaritons in wurtzite GaN Peer-reviewed

    K Torii, SF Chichibu, T Deguchi, H Nakanishi, T Sota, S Nakamura

    PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON NITRIDE SEMICONDUCTORS 1 548-551 2000

  429. Spectroscopic studies in InGaN single-quantum-well amber light-emitting diodes Peer-reviewed

    SF Chichibu, T Azuhata, T Sota, T Mukai, S Nakamura

    PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON NITRIDE SEMICONDUCTORS 1 528-531 2000

  430. Correlation between optical emission and disordering of indium in InxGa1-xN single quantum wells analyzed by coaxial impact collision ion scattering spectroscopy Peer-reviewed

    M Sumiya, SF Chichibu, K Mizuno, M Furusawa, M Yoshimoto, S Nakamura

    PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON NITRIDE SEMICONDUCTORS 1 575-578 2000

  431. A pump and probe study of photoinduced internal field screening dynamics in an AlGaN/GaN single-quantum-well structure Peer-reviewed

    A Shikanai, T Deguchi, T Sota, T Kuroda, A Tackeuchi, S Chichibu, S Nakamura

    APPLIED PHYSICS LETTERS 76 (4) 454-456 2000/01

    DOI: 10.1063/1.125785  

    ISSN: 0003-6951

  432. Crystal Growth of High Purity AgIn(SxSe1-x)(2) Single Crystals Peer-reviewed

    Kenji Yoshino, Naoji Mitani, Mutsumi Sugiyama, Shigefusa Chichibu, Hisayuki Nakanishi, Tetsuo Ikari

    JAPANESE JOURNAL OF APPLIED PHYSICS 39 (1) 50-51 2000

    DOI: 10.7567/JJAPS.39S1.50  

    ISSN: 0021-4922

    eISSN: 1347-4065

  433. Disappearance of the surface Cu-Se second phase during post-growth annealing of CuInSe2 epitaxial films grown under excess Cu-flux conditions Peer-reviewed

    Manabu Uchino, Shigeru Niki, Yousuke Ai, Paul J. Fons, Akimasa Yamada, Natsuko Sakaf, Harumi Yokokawa, Hiroyuki Oyanagi, Shigefusa F. Chichibu, Hisayuki Nakanishi

    JAPANESE JOURNAL OF APPLIED PHYSICS 39 (1) 205-207 2000

    DOI: 10.7567/JJAPS.39S1.205  

    ISSN: 0021-4922

    eISSN: 1347-4065

  434. Exciton structures of single- and polycrystalline CuInSe2 and CuGaSe2 Peer-reviewed

    Shigefusa F. Chichibu, Tsutomu Mizutani, Hisayuki Nakanishi, Shigeru Niki, Paul J. Fons, Akimasa Yamada

    JAPANESE JOURNAL OF APPLIED PHYSICS 39 (1) 326-327 2000

    DOI: 10.7567/JJAPS.39S1.326  

    ISSN: 0021-4922

    eISSN: 1347-4065

  435. Optical Properties of AgIn(SySe1-y)(2) Peer-reviewed

    Mutsumi Sugiyama, Naoji Mitani, Kenji Yoshino, Tetsuo Ikari, Hisayuki Nakanishi, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 39 (1) 96-97 2000

    DOI: 10.7567/JJAPS.39S1.96  

    ISSN: 0021-4922

    eISSN: 1347-4065

  436. Growth and Band-gap Estimation of CuIn3Se5 Polycrystalline Thin Films Peer-reviewed

    Akinori Hayakawa, Tsutomu Mizutani, Hisayuki Nakanishi, Shigefusa F. Chichibu

    JAPANESE JOURNAL OF APPLIED PHYSICS 39 (1) 162-163 2000

    DOI: 10.7567/JJAPS.39S1.162  

    ISSN: 0021-4922

    eISSN: 1347-4065

  437. Effect of the confinement layer design on the luminescence of InGaN/GaN single quantum wells Peer-reviewed

    S Keller, SB Fleischer, SF Chichibu, JE Bowers, UK Mishra, SP DenBaars

    PHYSICA STATUS SOLIDI B-BASIC RESEARCH 216 (1) 269-272 1999/11

    DOI: 10.1002/(SICI)1521-3951(199911)216:1<269::AID-PSSB269>3.0.CO;2-4  

    ISSN: 0370-1972

  438. Properties of quantum well excitons in GaN/AlGaN and InGaN/GaN/AlGaN UV, blue, green, and amber light emitting diode structures Peer-reviewed

    SF Chichibu, T Deguchi, T Sota, K Wada, SP DenBaars, T Mukai, S Nakamura

    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH 176 (1) 85-90 1999/11

    DOI: 10.1002/(SICI)1521-396X(199911)176:1<85::AID-PSSA85>3.0.CO;2-T  

    ISSN: 0031-8965

  439. Two-phonon absorption spectra in wurtzite GaN Peer-reviewed

    T Azuhata, K Shimada, T Deguchi, T Sota, K Suzuki, S Chichibu, S Nakamura

    APPLIED PHYSICS LETTERS 75 (14) 2076-2078 1999/10

    DOI: 10.1063/1.124921  

    ISSN: 0003-6951

    eISSN: 1077-3118

  440. Optical properties of an InGaN active layer in ultraviolet light emitting diode Peer-reviewed

    T Deguchi, K Torii, K Shimada, T Sota, R Matsuo, M Sugiyama, A Setoguchi, S Chichibu, S Nakamura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 38 (9AB) L975-L977 1999/09

    DOI: 10.1143/jjap.38.L975  

    ISSN: 0021-4922

  441. Structural and vibrational properties of GaN Peer-reviewed

    T Deguchi, D Ichiryu, K Toshikawa, K Sekiguchi, T Sota, R Matsuo, T Azuhata, M Yamaguchi, T Yagi, S Chichibu, S Nakamura

    JOURNAL OF APPLIED PHYSICS 86 (4) 1860-1866 1999/08

    DOI: 10.1063/1.370980  

    ISSN: 0021-8979

  442. Reflectance and emission spectra of excitonic polaritons in GaN Peer-reviewed

    K Torii, T Deguchi, T Sota, K Suzuki, S Chichibu, S Nakamura

    PHYSICAL REVIEW B 60 (7) 4723-4730 1999/08

    DOI: 10.1103/PhysRevB.60.4723  

    ISSN: 1098-0121

    eISSN: 1550-235X

  443. Quantum-confined Stark effect in an AlGaN/GaN/AlGaN single quantum well structure Peer-reviewed

    T Deguchi, K Sekiguchi, A Nakamura, T Sota, R Matsuo, S Chichibu, S Nakamura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 38 (8B) L914-L916 1999/08

    DOI: 10.1143/jjap.38.L914  

    ISSN: 0021-4922

  444. Optical properties of InGaN quantum wells Peer-reviewed

    SF Chichibu, AC Abare, MP Mack, MS Minsky, T Deguchi, D Cohen, P Kozodoy, SB Fleischer, S Keller, JS Speck, JE Bowers, E Hu, UK Mishra, LA Coldren, SP DenBaars, K Wada, T Sota, S Nakamura

    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY 59 (1-3) 298-306 1999/05

    DOI: 10.1016/S0921-5107(98)00359-6  

    ISSN: 0921-5107

  445. Emission mechanisms of bulk GaN and InGaN quantum wells prepared by lateral epitaxial overgrowth Peer-reviewed

    SF Chichibu, H Marchand, MS Minsky, S Keller, PT Fini, JP Ibbetson, SB Fleischer, JS Speck, JE Bowers, E Hu, UK Mishra, SP DenBaars, T Deguchi, T Soto, S Nakamura

    APPLIED PHYSICS LETTERS 74 (10) 1460-1462 1999/03

    DOI: 10.1063/1.123581  

    ISSN: 0003-6951

  446. Infrared lattice absorption in wurtzite GaN Peer-reviewed

    T Azuhata, K Shimada, T Deguchi, T Sota, K Suzuki, S Chichibu, S Nakamura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 38 (2B) L151-L153 1999/02

    DOI: 10.1143/jjap.38.L151  

    ISSN: 0021-4922

  447. Comparison of optical properties in GaN and InGaN quantum well structures Peer-reviewed

    SF Chichibu, A Shikanai, T Deguchi, A Setoguchi, R Nakai, K Wada, SP DenBaars, T Sota, T Mukai, S Nakamura

    DESIGN, FABRICATION AND CHARACTERIZATION OF PHOTONIC DEVICES 3896 98-106 1999

    DOI: 10.1117/12.370352  

    ISSN: 0277-786X

  448. Structural and optical properties of low-dislocation-density GaN laterally overgrown by metalorganic chemical vapor deposition Peer-reviewed

    H Marchand, JP Ibbetson, PT Fini, S Chichibu, SJ Rosner, S Keller, SP DenBaars, JS Speck, UK Mishra

    COMPOUND SEMICONDUCTORS 1998 (162) 681-686 1999

    ISSN: 0951-3248

  449. Spectroscopic studies in InGaN quantum wells Peer-reviewed

    SF Chichibu, T Sota, K Wada, SP DenBaars, S Nakamura

    MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH 4 1999

    ISSN: 1092-5783

  450. Effect of the growth rate and the barrier doping on the morphology and the properties of InGaN/GaN quantum wells Peer-reviewed

    S Keller, SF Chichibu, MS Minsky, E Hu, UK Mishra, SP DenBaars

    JOURNAL OF CRYSTAL GROWTH 195 (1-4) 258-264 1998/12

    DOI: 10.1016/S0022-0248(98)00680-0  

    ISSN: 0022-0248

  451. Optical properties of InGaN/GaN quantum wells with Si doped barriers Peer-reviewed

    MS Minsky, S Chichibu, SB Fleischer, AC Abare, JE Bowers, EL Hu, S Keller, UK Mishra, SP DenBaars

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 37 (11B) L1362-L1364 1998/11

    DOI: 10.1143/jjap.37.L1362  

    ISSN: 0021-4922

  452. Free exciton spectra of cubic and hexagonal GaN epitaxial films

    Chichibu, S., Okumura, H.

    Denshi Gijutsu Sogo Kenkyusho Iho/Bulletin of the Electrotechnical Laboratory 62 (10) 1998/10

  453. Effective band gap inhomogeneity and piezoelectric field in InGaN/GaN multiquantum well structures Peer-reviewed

    SF Chichibu, AC Abare, MS Minsky, S Keller, SB Fleischer, JE Bowers, E Hu, UK Mishra, LA Coldren, SP DenBaars, T Sota

    APPLIED PHYSICS LETTERS 73 (14) 2006-2008 1998/10

    DOI: 10.1063/1.122350  

    ISSN: 0003-6951

  454. Characteristics of muscular contraction caused by magnetic stimulation Peer-reviewed

    A Chiba, H Nakanishi, S Chichibu

    NEUROREPORT 9 (12) 2903-2905 1998/08

    DOI: 10.1097/00001756-199808240-00041  

    ISSN: 0959-4965

  455. Apoptosis in the kidney of malignant hypertensive rats (M-SHRSP). Peer-reviewed

    Y Ohta, T Suzuki, M Yasui, A Chiba, S Chichibu

    JAPANESE HEART JOURNAL 39 (4) 547-547 1998/07

    ISSN: 0021-4868

  456. Magnetically induced motor evoked potentials and H-reflex during nembutal and ketamine anesthesia administration in rats Peer-reviewed

    A Chiba, H Nakanishi, S Hiruma, T Satou, S Hashimoto, S Chichibu

    RESEARCH COMMUNICATIONS IN MOLECULAR PATHOLOGY AND PHARMACOLOGY 101 (1) 43-57 1998/07

    ISSN: 1078-0297

  457. Relation of pathological changes to EMGs evoked by magnetic stimulation of brain and spinal cord in the hypertensive rats. Peer-reviewed

    Y Ohta, A Chiba, S Chichibu, M Yasui, T Suzuki

    JAPANESE HEART JOURNAL 39 (4) 549-549 1998/07

    ISSN: 0021-4868

  458. Cathodoluminescence study on quantum microstructures.

    和田一実, 秩父重英, 中村修二, 宗田孝之, 幸前篤朗, 村下達

    応用物理 67 (7) 798-801 1998/07

    Publisher: The Japan Society of Applied Physics

    DOI: 10.11470/oubutsu1932.67.798  

    ISSN: 0369-8009

  459. Improved optical properties of CuInSe2 thin films prepared by alternate-feeding physical vapor deposition Peer-reviewed

    S Chichibu, T Shioda, T Irie, H Nakanishi

    JOURNAL OF APPLIED PHYSICS 84 (1) 522-525 1998/07

    DOI: 10.1063/1.368056  

    ISSN: 0021-8979

  460. Exciton localization in InGaN quantum well devices Peer-reviewed

    S Chichibu, T Sota, K Wada, S Nakamura

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 16 (4) 2204-2214 1998/07

    DOI: 10.1116/1.590149  

    ISSN: 1071-1023

  461. Effects of Si-doping in the barriers of InGaN multiquantum well purplish-blue laser diodes Peer-reviewed

    S Chichibu, DA Cohen, MP Mack, AC Abare, P Kozodoy, M Minsky, S Fleischer, S Keller, JE Bowers, UK Mishra, LA Coldren, DR Clarke, SP DenBaars

    APPLIED PHYSICS LETTERS 73 (4) 496-498 1998/07

    DOI: 10.1063/1.121912  

    ISSN: 0003-6951

  462. Promising characteristics of GaN layers grown on amorphous silica substrates by gas-source MBE Peer-reviewed

    K Iwata, H Asahi, K Asami, A Ishida, R Kuroiwa, H Tampo, S Gonda, S Chichibu

    JOURNAL OF CRYSTAL GROWTH 189 218-222 1998/06

    DOI: 10.1016/S0022-0248(98)00229-2  

    ISSN: 0022-0248

  463. Analysis of MBE growth mode for GaN epilayers by RHEED Peer-reviewed

    H Okumura, K Balakrishnan, H Hamaguchi, T Koizumi, S Chichibu, H Nakanishi, T Nagatomo, S Yoshida

    JOURNAL OF CRYSTAL GROWTH 189 364-369 1998/06

    DOI: 10.1016/S0022-0248(98)00313-3  

    ISSN: 0022-0248

  464. Luminescence spectra from InGaN multiquantum wells heavily doped with Si Peer-reviewed

    T Deguchi, A Shikanai, K Torii, T Sota, S Chichibu, S Nakamura

    APPLIED PHYSICS LETTERS 72 (25) 3329-3331 1998/06

    DOI: 10.1063/1.121594  

    ISSN: 0003-6951

  465. Growth of cubic III-nitrides by gas source MBE using atomic nitrogen plasma: GaN, AlGaN and AlN Peer-reviewed

    H Okumura, H Hamaguchi, T Koizumi, K Balakrishnan, Y Ishida, M Arita, S Chichibu, H Nakanishi, T Nagatomo, S Yoshida

    JOURNAL OF CRYSTAL GROWTH 189 390-394 1998/06

    DOI: 10.1016/S0022-0248(98)00321-2  

    ISSN: 0022-0248

  466. Changes in the gastric vascular network of malignant stroke-prone spontaneously hypertensive rats (M-SHRSP) after administration of the calcium antagonist manidipine Peer-reviewed

    A Chiba, Y Ohta, T Suzuki, H Nakanishi, S Chichibu

    RESEARCH COMMUNICATIONS IN MOLECULAR PATHOLOGY AND PHARMACOLOGY 100 (2) 151-160 1998/05

    ISSN: 1078-0297

  467. Gastric vascular network in stroke-prone spontaneously hypertensive rats Peer-reviewed

    A Chiba, Y Ohta, T Suzuki, H Nakanishi, S Chichibu

    RESEARCH COMMUNICATIONS IN MOLECULAR PATHOLOGY AND PHARMACOLOGY 100 (1) 65-76 1998/04

    ISSN: 1078-0297

  468. Band gap energies of bulk, thin-film, and epitaxial layers of CuInSe2 and CuGaSe2 Peer-reviewed

    S Chichibu, T Mizutani, K Murakami, T Shioda, T Kurafuji, H Nakanishi, S Niki, PJ Fons, A Yamada

    JOURNAL OF APPLIED PHYSICS 83 (7) 3678-3689 1998/04

    DOI: 10.1063/1.366588  

    ISSN: 0021-8979

  469. Band-gap separation in InGaN epilayers grown by metalorganic chemical vapor deposition Peer-reviewed

    S Chichibu, M Arita, H Nakanishi, J Nishio, L Sugiura, Y Kokubun, K Itaya

    JOURNAL OF APPLIED PHYSICS 83 (5) 2860-2862 1998/03

    DOI: 10.1063/1.367048  

    ISSN: 0021-8979

  470. Surface reconstruction and As surfactant effects on MBE-grown GaN epilayers

    H Okumura, H Hamaguch, K Ohta, G Feuillet, K Balakrishnan, Y Ishida, S Chichibu, H Nakanishi, T Nagatomo, S Yoshida

    SILICON CARBIDE, III-NITRIDES AND RELATED MATERIALS, PTS 1 AND 2 264-2 1167-1172 1998

    ISSN: 0255-5476

  471. Photoluminescence of CuCaSe2 and CuAlSe2 MOVPE layers grown on CuGa0.96In0.04Se2 substrate Peer-reviewed

    S Shirakata, S Chichibu, H Miyake, S Isomura, H Nakanishi, K Sugiyama

    TERNARY AND MULTINARY COMPOUNDS 152 445-448 1998

    ISSN: 0951-3248

  472. Localized excitons in InGaN Peer-reviewed

    S Chichibu, T Deguchi, T Sota, K Wada, S Nakamura

    NITRIDE SEMICONDUCTORS 482 613-624 1998

    ISSN: 0272-9172

  473. High-quality CuInSe2 polycrystalline films and epitaxial layers prepared by multi-source physical vapor deposition Peer-reviewed

    Y Yamaki, T Shioda, T Irie, H Nakanishi, S Chichibu

    TERNARY AND MULTINARY COMPOUNDS 152 237-240 1998

    ISSN: 0951-3248

  474. Metalorganic vapor phase epitaxy and characterization of very high-purity CuInSe2 layers Peer-reviewed

    T Mizutani, H Nakanishi, S Chichibu

    TERNARY AND MULTINARY COMPOUNDS 152 297-300 1998

    ISSN: 0951-3248

  475. Preparation of aluminium-doped ZnO films by helicon-wave excited plasma sputtering Peer-reviewed

    Y Yamaki, K Yamaya, H Araya, H Nakanishi, S Chichibu

    BLUE LASER AND LIGHT EMITTING DIODES II 48-51 1998

  476. Improved properties of InGaN multiple quantum well purplish-blue laser diodes by Si-doping in the InGaN barriers Peer-reviewed

    S Chichibu, D Cohen, M Mack, A Abare, P Kozodoy, M Minsky, S Fleischer, S Keller, J Bowers, U Mishra, L Coldren, D Clarke, S Denbaars

    BLUE LASER AND LIGHT EMITTING DIODES II 381-384 1998

  477. Ultraviolet excitonic photoluminescence from CuAlS2 heteroepitaxial films grown by metalorganic vapor phase epitaxy Peer-reviewed

    S Chichibu, S Shirakata, M Sugiyama, H Nakanishi

    BLUE LASER AND LIGHT EMITTING DIODES II 596-599 1998

  478. Exciton localization in InGaN quantum wells grown on lateral epitaxially overgrown (LEO) GaN Peer-reviewed

    S Chichibu, H Marchand, S Keller, P Fini, J Ibbetson, M Minsky, S Fleischer, J Speck, J Bowers, E Hu, U Mishra, S Denbaars, T Deguchi, T Sota, S Nakamura

    BLUE LASER AND LIGHT EMITTING DIODES II 604-607 1998

  479. Electroreflectance of CuInSe2, CuIn3Se5 and Cu2In4Se7 Peer-reviewed

    S Shirakata, S Chichibu, H Miyake, S Isomura, H Nakanishi, K Sugiyama

    TERNARY AND MULTINARY COMPOUNDS 152 597-600 1998

    ISSN: 0951-3248

  480. Characterization of high quality CuGaSe2 heteroepitaxial layers grown by MOVPE Peer-reviewed

    A Bauknecht, U Blieske, T Kampschulte, J Bruns, K Diesner, Y Tomm, S Chichibu, MC Lux-Steiner

    TERNARY AND MULTINARY COMPOUNDS 152 269-272 1998

    ISSN: 0951-3248

  481. Surface reconstruction and As surfactant effects on MBE-grown GaN epilayers Peer-reviewed

    H Okumura, H Hamaguch, K Ohta, G Feuillet, K Balakrishnan, Y Ishida, S Chichibu, H Nakanishi, T Nagatomo, S Yoshida

    SILICON CARBIDE, III-NITRIDES AND RELATED MATERIALS, PTS 1 AND 2 264-2 1167-1172 1998

    DOI: 10.4028/www.scientific.net/MSF.264-268.1167  

    ISSN: 0255-5476

  482. Use of a helicon-wave excited plasma for aluminum-doped ZnO thin-film sputtering Peer-reviewed

    K Yamaya, Y Yamaki, H Nakanishi, S Chichibu

    APPLIED PHYSICS LETTERS 72 (2) 235-237 1998/01

    DOI: 10.1063/1.120707  

    ISSN: 0003-6951

  483. Metalorganic vapour phase epitaxy of Cu-III-VI2 widegap chalcopyrite semiconductors Peer-reviewed

    S Chichibu, S Shirakata, H Nakanishi

    TERNARY AND MULTINARY COMPOUNDS 152 257-260 1998

    ISSN: 0951-3248

  484. Effective bandgap separation in InGaN epilayers grown by metalorganic chemical vapor deposition Peer-reviewed

    S Chichibu, L Sugiura, J Nishio, A Setoguchi, H Nakanishi, K Itaya

    BLUE LASER AND LIGHT EMITTING DIODES II 616-619 1998

  485. Gain spectroscopy of continuous wave InGaN multi-quantum well laser diodes Peer-reviewed

    T Deguchi, T Azuhata, T Sota, S Chichibu, M Arita, H Nakanishi, S Nakamura

    SEMICONDUCTOR SCIENCE AND TECHNOLOGY 13 (1) 97-101 1998/01

    DOI: 10.1088/0268-1242/13/1/015  

    ISSN: 0268-1242

    eISSN: 1361-6641

  486. Nanosecond pump-and-probe study of wurtzite GaN Peer-reviewed

    T Deguchi, T Azuhata, T Sota, S Chichibu, N Sarukura, H Ohtake, T Yamanaka, S Nakamura

    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY 50 (1-3) 180-182 1997/12

    DOI: 10.1016/S0921-5107(97)00159-1  

    ISSN: 0921-5107

  487. Effects of annealing on CuInSe2 films grown by molecular beam epitaxy Peer-reviewed

    S Niki, Kim, I, PJ Fons, H Shibata, A Yamada, H Oyanagi, T Kurafuji, S Chichibu, H Nakanishi

    SOLAR ENERGY MATERIALS AND SOLAR CELLS 49 (1-4) 319-326 1997/12

    DOI: 10.1016/S0927-0248(97)00065-2  

    ISSN: 0927-0248

  488. Room-temperature photoreflectance of CuAlxGa1-xSe2 alloys Peer-reviewed

    S Shirakata, S Chichibu, S Isomura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 36 (12A) 7160-7161 1997/12

    DOI: 10.1143/JJAP.36.7160  

    ISSN: 0021-4922

  489. Gain spectra in cw InGaN/GaN MQW laser diodes Peer-reviewed

    T Deguchi, T Azuhata, T Sota, S Chichibu, S Nakamura

    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY 50 (1-3) 251-255 1997/12

    DOI: 10.1016/S0921-5107(97)00186-4  

    ISSN: 0921-5107

  490. Crystal growth and optical properties of CuAl(SxSe1-x)(2) alloys Peer-reviewed

    S Shirakata, S Chichibu, S Isomura

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 36 (11) 6645-6649 1997/11

    DOI: 10.1143/JJAP.36.6645  

    ISSN: 0021-4922

  491. Spatially resolved cathodoluminescence spectra of InGaN quantum wells Peer-reviewed

    S Chichibu, K Wada, S Nakamura

    APPLIED PHYSICS LETTERS 71 (16) 2346-2348 1997/10

    DOI: 10.1063/1.120025  

    ISSN: 0003-6951

    eISSN: 1077-3118

  492. A scanning electron-microscopic study of pituitary vascular casts in M-SHRSP, SHRSP, SHR B2 and WKY. Peer-reviewed

    Y Ohta, T Suzuki, A Chiba, S Chichibu

    JAPANESE HEART JOURNAL 38 (4) 581-581 1997/07

    ISSN: 0021-4868

  493. Improved quality of CuGaSe2 and CuAlSe2 epilayers grown on CuGa0.96In0.04Se2 substrates Peer-reviewed

    S Chichibu, H Nakanishi, S Shirakata, S Isomura, H Miyake, K Sugiyama

    APPLIED PHYSICS LETTERS 71 (4) 533-535 1997/07

    DOI: 10.1063/1.119600  

    ISSN: 0003-6951

  494. Periodicity and phase relationship of slow waves in M-SHRSP electroencephalogram. Peer-reviewed

    S Chichibu, Y Ohta, T Suzuki

    JAPANESE HEART JOURNAL 38 (4) 560-560 1997/07

    DOI: 10.1536/ihj.38.560  

    ISSN: 0021-4868

  495. Growth and characterization of cubic GaN Peer-reviewed

    H Okumura, K Ohta, G Feuillet, K Balakrishnan, S Chichibu, H Hamaguchi, P Hacke, S Yoshida

    JOURNAL OF CRYSTAL GROWTH 178 (1-2) 113-133 1997/06

    DOI: 10.1016/S0022-0248(97)00084-5  

    ISSN: 0022-0248

    eISSN: 1873-5002

  496. Urbach-Martienssen tails in a wurtzite GaN epilayer Peer-reviewed

    S Chichibu, T Mizutani, T Shioda, H Nakanishi, T Deguchi, T Azuhata, T Sota, S Nakamura

    APPLIED PHYSICS LETTERS 70 (25) 3440-3442 1997/06

    DOI: 10.1063/1.119196  

    ISSN: 0003-6951

  497. Luminescences from localized states in InGaN epilayers Peer-reviewed

    S Chichibu, T Azuhata, T Sota, S Nakamura

    APPLIED PHYSICS LETTERS 70 (21) 2822-2824 1997/05

    DOI: 10.1063/1.119013  

    ISSN: 0003-6951

    eISSN: 1077-3118

  498. Electroreflectance of CuInSe2 single crystals Peer-reviewed

    S Shirakata, S Chichibu, S Isomura, K Nakanishi

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 36 (5A) L543-L546 1997/05

    DOI: 10.1143/jjap.36.L543  

  499. Optical properties of tensile-strained wurtzite GaN epitaxial layers Peer-reviewed

    S Chichibu, T Azuhata, T Sota, H Amano, Akasaki, I

    APPLIED PHYSICS LETTERS 70 (16) 2085-2087 1997/04

    DOI: 10.1063/1.118958  

    ISSN: 0003-6951

    eISSN: 1077-3118

  500. Room-temperature near-band-edge photoluminescence from CuInSe2 heteroepitaxial layers grown by metalorganic vapor phase epitaxy Peer-reviewed

    S Chichibu

    APPLIED PHYSICS LETTERS 70 (14) 1840-1842 1997/04

    DOI: 10.1063/1.118708  

    ISSN: 0003-6951

  501. Visible and ultraviolet photoluminescence from Cu-III-VI2 chalcopyrite semiconductors grown by metalorganic vapor phase epitaxy Peer-reviewed

    S Chichibu, S Shirakata, S Isomura, H Nakanishi

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 36 (3B) 1703-1714 1997/03

    DOI: 10.1143/JJAP.36.1703  

    ISSN: 0021-4922

  502. Exciton spectra of cubic and hexagonal GaN epitaxial films Peer-reviewed

    S Chichibu, H Okumura, S Nakamura, G Feuillet, T Azuhata, T Sota, S Yoshida

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 36 (3B) 1976-1983 1997/03

    DOI: 10.1143/JJAP.36.1976  

    ISSN: 0021-4922

  503. Valence band physics in wurtzite GaN Peer-reviewed

    T Azuhata, T Sota, S Chichibu, A Kuramata, K Horino, M Yamaguchi, T Yagi, S Nakamura

    GALLIUM NITRIDE AND RELATED MATERIALS II 468 445-456 1997

    DOI: 10.1557/PROC-468-445  

    ISSN: 0272-9172

  504. Thermal and antiradical properties of indirect moxibustion Peer-reviewed

    A Chiba, H Nakanishi, S Chichibu

    AMERICAN JOURNAL OF CHINESE MEDICINE 25 (3-4) 281-287 1997

    DOI: 10.1142/S0192415X97000317  

    ISSN: 0192-415X

  505. Effect of indirect moxibustion on mouse skin Peer-reviewed

    A Chiba, H Nakanishi, S Chichibu

    AMERICAN JOURNAL OF CHINESE MEDICINE 25 (2) 143-151 1997

    DOI: 10.1142/S0192415X97000160  

    ISSN: 0192-415X

  506. MOVPE of CuGaSe2 for photovoltaic applications Peer-reviewed

    T Kampschulte, A Bauknecht, U Blieske, M Saad, S Chichibu, MC Lux-Steiner

    CONFERENCE RECORD OF THE TWENTY SIXTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1997 391-394 1997

    DOI: 10.1109/PVSC.1997.654110  

    ISSN: 0160-8371

  507. Brillouin scattering study of gallium nitride: Elastic stiffness constants Peer-reviewed

    M Yamaguchi, T Yagi, T Azuhata, T Sota, K Suzuki, S Chichibu, S Nakamura

    JOURNAL OF PHYSICS-CONDENSED MATTER 9 (1) 241-248 1997/01

    DOI: 10.1088/0953-8984/9/1/025  

    ISSN: 0953-8984

  508. Recombination of localized excitons in InGaN single- and multiquantum well structures Peer-reviewed

    S Chichibu, T Azuhata, T Sota, S Nakamura

    III-V NITRIDES 449 653-658 1997

    ISSN: 0272-9172

  509. Biaxial strain dependence of exciton resonance energies in wurtzite GaN Peer-reviewed

    A Shikanai, T Azuhata, T Sota, S Chichibu, A Kuramata, K Horino, S Nakamura

    JOURNAL OF APPLIED PHYSICS 81 (1) 417-424 1997/01

    DOI: 10.1063/1.364074  

    ISSN: 0021-8979

  510. Structural and optical characterization of high-quality cubic GaN epilayers grown on GaAs and 3C-SiC substrates by gas source MBE using RHEED in-situ monitoring Peer-reviewed

    H Okumura, K Balakrishnan, G Feuillet, K Ohta, H Hamaguchi, S Chichibu, Y Ishida, S Yoshida

    III-V NITRIDES 449 435-440 1997

    ISSN: 0272-9172

  511. Growth and doping characteristics of ZnSeTe epilayers by MOCVD Peer-reviewed

    A Kamata, H Yoshida, S Chichibu, H Nakanishi

    JOURNAL OF CRYSTAL GROWTH 170 (1-4) 518-522 1997/01

    DOI: 10.1016/S0022-0248(96)00575-1  

    ISSN: 0022-0248

  512. Spontaneous emission of localized excitons in InGaN single and multiquantum well structures Peer-reviewed

    S Chichibu, T Azuhata, T Sota, S Nakamura

    APPLIED PHYSICS LETTERS 69 (27) 4188-4190 1996/12

    DOI: 10.1063/1.116981  

    ISSN: 0003-6951

  513. Preparation and characterization of CuAlxGa1-xSe2 alloy layers grown by low-pressure metalorganic vapor phase epitaxy Peer-reviewed

    S Chichibu, H Nakanishi, S Shirakata, S Isomura, Y Harada, S Matsumoto, H Higuchi, T Kariya

    JOURNAL OF APPLIED PHYSICS 80 (6) 3338-3345 1996/09

    DOI: 10.1063/1.363245  

    ISSN: 0021-8979

  514. Visible and Ultraviolet Photoluminescence from Cu-III-VI_2 Chalcopyrite Semiconductors Grown by Metalorganic Vapor Phase Epitaxy

    CHICHIBU Shigefusa, SHIRAKATA Sho, ISOMURA Shigehiro, NAKANISHI Hisayuki

    Extended abstracts of the ... Conference on Solid State Devices and Materials 1996 733-735 1996/08/26

  515. High quality CuInSe2 films grown on pseudo-lattice-matched substrates by molecular beam epitaxy Peer-reviewed

    S Niki, PJ Fons, A Yamada, T Kurafuji, S Chichibu, H Nakanishi, WG Bi, CW Tu

    APPLIED PHYSICS LETTERS 69 (5) 647-649 1996/07

    DOI: 10.1063/1.117793  

    ISSN: 0003-6951

  516. Influence of nonstoichiometry on the Urbach's tails of absorption spectra for CuInSe2 single crystals Peer-reviewed

    T Shioda, S Chichibu, T Irie, H Nakanishi, T Kariya

    JOURNAL OF APPLIED PHYSICS 80 (2) 1106-1111 1996/07

    DOI: 10.1063/1.362914  

    ISSN: 0021-8979

    eISSN: 1089-7550

  517. Effects of biaxial strain on exciton resonance energies of hexagonal GaN heteroepitaxial layers Peer-reviewed

    S Chichibu, A Shikanai, T Azuhata, T Sota, A Kuramata, K Horino, S Nakamura

    APPLIED PHYSICS LETTERS 68 (26) 3766-3768 1996/06

    DOI: 10.1063/1.116000  

    ISSN: 0003-6951

  518. Band-edge photoluminescence of CuGaSe2 films grown by molecular beam epitaxy Peer-reviewed

    A Yamada, Y Makita, S Niki, A Obara, P Fons, H Shibata, M Kawai, S Chichibu, H Nakanishi

    JOURNAL OF APPLIED PHYSICS 79 (8) 4318-4322 1996/04

    DOI: 10.1063/1.361800  

    ISSN: 0021-8979

  519. Lattice dynamics of CuAlS2, and CuAlSe2 Peer-reviewed

    T Azuhata, T Terasako, K Yoshida, T Sota, K Suzuki, S Chichibu

    PHYSICA B-CONDENSED MATTER 219-20 496-498 1996/04

    DOI: 10.1016/0921-4526(95)00790-3  

    ISSN: 0921-4526

  520. Depth profiles of spatially-resolved Raman spectra of a CuInSe2-based thin-film solar cell Peer-reviewed

    R Takei, H Tanino, S Chichibu, H Nakanishi

    JOURNAL OF APPLIED PHYSICS 79 (5) 2793-2795 1996/03

    DOI: 10.1063/1.361095  

    ISSN: 0021-8979

  521. Excitonic emissions from hexagonal GaN epitaxial layers Peer-reviewed

    S Chichibu, T Azuhata, T Sota, S Nakamura

    JOURNAL OF APPLIED PHYSICS 79 (5) 2784-2786 1996/03

    DOI: 10.1063/1.361110  

    ISSN: 0021-8979

    eISSN: 1089-7550

  522. Photoreflectance of Cu-based I-III-VI2 heteroepitaxial layers grown by metalorganic chemical vapor deposition Peer-reviewed

    S Shirakata, S Chichibu

    JOURNAL OF APPLIED PHYSICS 79 (4) 2043-2054 1996/02

    DOI: 10.1063/1.361059  

    ISSN: 0021-8979

    eISSN: 1089-7550

  523. Excitonic emissions from CuAlS2 and CuAlSe2.

    秩父重英

    応用物理 65 (1) 74-77 1996/01

    Publisher: The Japan Society of Applied Physics

    DOI: 10.11470/oubutsu1932.65.74  

    ISSN: 0369-8009

  524. Contribution of excitons in the photoluminescence spectra of h-GaN epitaxial layers grown on sapphire substrates by TF-MOCVD Peer-reviewed

    S Chichibu, T Azuhata, T Sota, S Nakamura

    BLUE LASER AND LIGHT EMITTING DIODES 202-205 1996

  525. HETEROEPITAXIAL GROWTH OF CUGAS2 LAYERS BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S CHICHIBU, S SHIRAKATA, M UCHIDA, Y HARADA, T WAKIYAMA, S MATSUMOTO, H HIGUCHI, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 34 (8A) 3991-3997 1995/08

    DOI: 10.1143/JJAP.34.3991  

    ISSN: 0021-4922

  526. EXCITONIC EMISSIONS FROM CUINSE2 ON GAAS(001) GROWN BY MOLECULAR-BEAM EPITAXY Peer-reviewed

    S NIKI, H SHIBATA, PJ FONS, A YAMADA, A OBARA, Y MAKITA, T KURAFUJI, S CHICHIBU, H NAKANISHI

    APPLIED PHYSICS LETTERS 67 (9) 1289-1291 1995/08

    DOI: 10.1063/1.114400  

    ISSN: 0003-6951

  527. ULTRAVIOLET PHOTOLUMINESCENCE FROM CUALS2 HETEROEPITAXIAL LAYERS GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S CHICHIBU, H NAKANISHI, S SHIRAKATA

    APPLIED PHYSICS LETTERS 66 (25) 3513-3515 1995/06

    DOI: 10.1063/1.113781  

    ISSN: 0003-6951

  528. HETEROEPITAXY AND CHARACTERIZATION OF CUINSE2 ON GAAS(001) Peer-reviewed

    S NIKI, Y MAKITA, A YAMADA, O HELLMAN, PJ FONS, A OBARA, Y OKADA, R SHIODA, H OYANAGI, T KURAFUJI, S CHICHIBU, H NAKANISHI

    JOURNAL OF CRYSTAL GROWTH 150 (1-4) 1201-1205 1995/05

    DOI: 10.1016/0022-0248(95)80129-Z  

    ISSN: 0022-0248

  529. USE OF TETRAETHYLGERMANE IN ARF EXCIMER-LASER CHEMICAL-VAPOR-DEPOSITION OF AMORPHOUS SILICON-GERMANIUM FILMS Peer-reviewed

    F ISHIHARA, H UJI, T KAMIMURA, S MATSUMOTO, H HIGUCHI, S CHICHIBU

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 34 (5A) 2229-2234 1995/05

    DOI: 10.1143/JJAP.34.2229  

    ISSN: 0021-4922

  530. RAMAN-SPECTRA OF CUALSE2 HETEROEPITAXIAL LAYERS Peer-reviewed

    S CHICHIBU, A KAMATA

    JOURNAL OF APPLIED PHYSICS 77 (10) 5470-5472 1995/05

    DOI: 10.1063/1.359247  

    ISSN: 0021-8979

  531. PHOTOLUMINESCENCE STUDIES IN CUALSE2 EPILAYERS GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S CHICHIBU, S SHIRAKATA, S ISOMURA, Y HARADA, M UCHIDA, S MATSUMOTO, H HIGUCHI

    JOURNAL OF APPLIED PHYSICS 77 (3) 1225-1232 1995/02

    DOI: 10.1063/1.358990  

    ISSN: 0021-8979

  532. Characteristics of slow waves in malignant stroke-prone SHR electroencephalogram Peer-reviewed

    S. Chichibu, Y. Ohta, T. A. Chikugo

    Japanese Heart Journal 36 (4) 521 1995

    Publisher: International Heart Journal Association

    DOI: 10.1536/ihj.36.521  

    ISSN: 0021-4868

  533. HETEROEPITAXY AND CHARACTERIZATION OF CUGASE2 LAYERS GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S CHICHIBU, Y HARADA, M UCHIDA, T WAKIYAMA, S MATSUMOTO, S SHIRAKATA, S ISOMURA, H HIGUCHI

    JOURNAL OF APPLIED PHYSICS 76 (5) 3009-3015 1994/09

    ISSN: 0021-8979

  534. Zn-related donor-acceptor pair emission in CuAlSe2 epitaxial layers

    Sho Shirakata, Shigefusa Chichibu, Satoru Matsumoto, Shigehiro Isomura

    Japanese Journal of Applied Physics 33 (3) L345-L347 1994

    DOI: 10.1143/JJAP.33.L345  

    ISSN: 1347-4065 0021-4922

  535. Optical characteristics of CuInSe2 grown by molecular beam epitaxy Peer-reviewed

    S NIKI, Y MAKITA, A YAMADA, H SHIBATA, PJ FONS, A OBARA, T KURAFUJI, S CHICHIBU, H NAKANISHI

    1994 IEEE FIRST WORLD CONFERENCE ON PHOTOVOLTAIC ENERGY CONVERSION/CONFERENCE RECORD OF THE TWENTY FOURTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE-1994, VOLS I AND II 132-135 1994

    ISSN: 0160-8371

  536. PHOSPHATE-METABOLISM DURING MUSCULAR-CONTRACTION IN STARVED FROGS (RANA-CATESBEIANA) Peer-reviewed

    A CHIBA, M TAKASHIMA, M HAMAGUCHI, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY 106 (4) 725-729 1993/12

    ISSN: 0300-9629

  537. PHOSPHORYLATION IN CRAYFISH (PROCAMBARUS-CLARKII) EGGS DURING HATCHING Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY 106 (2) 433-436 1993/10

    ISSN: 0305-0491

  538. P-31-NMR STUDY ON EFFECTS OF ELECTRIC-SHOCK ON SWIMMING LEECHES, HIRUDO-MEDICINALIS Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY 106 (2) 239-243 1993/10

    ISSN: 0300-9629

  539. HIGH-ENERGY PHOSPHATE METABOLITES IN LOACH (COBITIS-BIWAE) DURING URETHANE ANESTHESIA Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-PHARMACOLOGY TOXICOLOGY & ENDOCRINOLOGY 106 (1) 87-91 1993/09

    ISSN: 0742-8413

  540. CHANGES OF P-31 METABOLISM DURING MUCUS SECRETION IN THE SLUG (INCILARIA-BILINEATA) Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-PHARMACOLOGY TOXICOLOGY & ENDOCRINOLOGY 105 (2) 179-183 1993/06

    ISSN: 0742-8413

  541. MONOENERGETIC POSITRON BEAM STUDY OF SI-DOPED GAAS EPILAYERS GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL VAPOR-DEPOSITION USING TERTIARYBUTYLARSINE Peer-reviewed

    S CHICHIBU, A IWAI, Y NAKAHARA, S MATSUMOTO, H HIGUCHI, L WEI, S TANIGAWA

    JOURNAL OF APPLIED PHYSICS 73 (8) 3880-3885 1993/04

    ISSN: 0021-8979

  542. HEAVILY ARSENIC DOPING INTO SI BY ARF EXCIMER-LASER IRRADIATION USING TERTIARYBUTYLARSINE (TBAS) Peer-reviewed

    S CHICHIBU, T NII, T AKANE, S MATSUMOTO

    SHALLOW IMPURITIES IN SEMICONDUCTORS 117 243-248 1993

    ISSN: 0255-5476

  543. MONOENERGETIC POSITRON BEAM STUDY OF HEAVILY SI-DOPED GAAS GROWN BY MOCVD USING TERTIARYBUTYLARSINE Peer-reviewed

    S CHICHIBU, A WAI, Y NAKAHARA, S MATSUMOTO, H HIGUCHI, L WEI, S TANIGAWA

    SHALLOW IMPURITIES IN SEMICONDUCTORS 117 315-320 1993

    ISSN: 0255-5476

  544. PHOTOREFLECTANCE CHARACTERIZATION OF CUALSE2 HETEROEPITAXIAL LAYERS GROWN BY METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S SHIRAKATA, S CHICHIBU, S MATSUMOTO, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 32 494-496 1993

    DOI: 10.7567/JJAPS.32S3.494  

    ISSN: 0021-4922

  545. PREPARATION AND CHARACTERIZATION OF CU(AL,GA)(S,SE)2 PENTERNARY ALLOYS Peer-reviewed

    A OGAWA, R SUDO, A GUPTA, S SHIRAKATA, S CHICHIBU, S MATSUMOTO, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 32 588-589 1993

    DOI: 10.7567/JJAPS.32S3.588  

    ISSN: 0021-4922

  546. 2.51 EV DONOR-ACCEPTOR PAIR PHOTOLUMINESCENCE FROM ZN-DOPED CUALSE2 EPILAYER GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION Peer-reviewed

    S CHICHIBU, S SHIRAKATA, R SUDO, M UCHIDA, Y HARADA, S MATSUMOTO, H HIGUCHI, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 32 531-533 1993

    DOI: 10.7567/JJAPS.32S3.531  

    ISSN: 0021-4922

  547. LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION OF CUALSE2 EPITAXIAL-FILMS Peer-reviewed

    S CHICHIBU, S SHIRAKATA, R SUDO, M UCHIDA, Y HARADA, S MATSUMOTO, H HIGUCHI, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 32 139-141 1993

    DOI: 10.7567/JJAPS.32S3.139  

    ISSN: 0021-4922

  548. CHEMICAL VAPOR-DEPOSITION OF CU FILM ON SIO2 USING CYCLOPENTADIENYLCOPPERTRIETHYLPHOSPHINE Peer-reviewed

    S CHICHIBU, N YOSHIDA, H HIGUCHI, S MATSUMOTO

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 31 (12B) L1778-L1780 1992/12

    ISSN: 0021-4922

  549. HIGH-ENERGY PHOSPHATE-METABOLISM IN THE PHENTHIAZAMINE HYDROBROMIDE ANESTHETIZED LOACH COBITIS-BIWAE Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-PHARMACOLOGY TOXICOLOGY & ENDOCRINOLOGY 102 (3) 433-437 1992/07

    ISSN: 0742-8413

  550. WATER PROTON ION IN LEG MUSCLES OF CRAYFISH SUBJECTED TO STARVATION Peer-reviewed

    A CHIBA, S CHICHIBU

    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY 102 (1) 127-131 1992/05

    ISSN: 0300-9629

  551. Erratum: Heavily Si-doped GaAs grown by low-pressure metalorganic chemical vapor deposition using tertiarybutylarsine and silane" (Applied Physics Letters (1992) 60 (489)) Peer-reviewed

    S. Chichibu, A. Iwai, S. Matsumoto, H. Higuchi

    Applied Physics Letters 60 (19) 2439 1992

    DOI: 10.1063/1.107447  

    ISSN: 0003-6951

  552. HEAVILY SI-DOPED GAAS GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL VAPOR-DEPOSITION USING TERTIARYBUTYLARSINE AND SILANE Peer-reviewed

    S CHICHIBU, A IWAI, S MATSUMOTO, H HIGUCHI

    APPLIED PHYSICS LETTERS 60 (4) 489-491 1992/01

    ISSN: 0003-6951

  553. ROLE OF ELECTRON TRAPS ON THE THERMAL-CONVERSION AND ITS SUPPRESSION FOR LIQUID-ENCAPSULATED CZOCHRALSKI GAAS SINGLE-CRYSTALS Peer-reviewed

    S CHICHIBU, N OHKUBO, S MATSUMOTO

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 28 (10) 1750-1755 1989/10

    ISSN: 0021-4922

  554. EL2 DEEP LEVEL DISTRIBUTION UNDER CONTROLLED AS PRESSURE ANNEALING OF LEC GAAS Peer-reviewed

    S CHICHIBU, N OHKUBO, S MATSUMOTO

    SEMI-INSULATING III-V MATERIALS, MALMO 1988 25-30 1988

Show all ︎Show first 5

Misc. 236

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  2. 特集:東北大学グリーンネストICT "LEDを用いたノイズに強い光無線通信技術の研究 ~真夏の直射日光下において毎秒1ギガビット以上の通信速度を実現~"

    小島一信, 秩父重英, 吉田悠来, 白岩雅輝, 菅野敦史, 山本直克, 淡路祥成, 平野光, 長澤陽祐, 一本松正道

    電波技術協会報FORN (342) 18-21 2021/09

    ISSN: 0910-593X

  3. Gbps-class solar-blind optical wireless communication based on deep-ultraviolet AlGaN LEDs

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    電子情報通信学会大会講演論文集(CD-ROM) 2021 2021

    ISSN: 1349-144X

  4. Effect of crystal quality and device structure on detection characteristics in BGaN neutron detector: part2

    宮澤篤也, 太田悠斗, 松川真也, 林幸佑, 中川央也, 川崎晟也, 安藤悠人, 本田善央, 天野浩, 天野浩, 嶋紘平, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

    ISSN: 2436-7613

  5. Spatio-time-resolved cathodoluminescence study of InGaN/GaN multiquantum shells

    嶋紘平, LU Weifang, 小島一信, 上山智, 竹内哲也, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  6. Luminescent properties of Si-doped AlN substrates grown by HVPE on freestanding AlN

    秩父重英, 嶋紘平, 小島一信, MOODY Baxter, 三田清二, COLLAZO Ramon, SITAR Zlatko, SITAR Zlatko, 熊谷義直, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  7. Discrete AlN Mole Fraction Observed in AlGaN Layer with Dense Macrosteps (3)

    長澤陽祐, 小島一信, 平野光, 迫秀樹, 橋本愛, 杉江隆一, 一本松正道, 本田善央, 天野浩, 赤崎勇, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

    ISSN: 2436-7613

  8. Luminescence studies of bulk GaN crystals grown by the LPAAT method

    嶋紘平, 栗本浩平, BAO Q., 三川豊, 小島一信, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  9. Discrete AlN mole fraction observed in AlGaN Layer with Dense Macrosteps (1)

    長澤陽祐, 平野光, 一本松正道, 迫秀樹, 橋本愛, 杉江隆一, 本田善央, 天野浩, 赤崎勇, 赤崎勇, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

    ISSN: 2436-7613

  10. Luminescence studies of nearly lattice-matched c-plane AlInN/GaN heterostructures

    LI L. Y., 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  11. Quantification of quantum efficiency of radiation in semiconductor crystals based on omnidirectional photoluminescence (ODPL) spectroscopy

    小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  12. Discrete AlN Mole Fraction Observed in AlGaN Layer with Dense Macrosteps (2)

    長澤陽祐, 平野光, 一本松正道, 迫秀樹, 橋本愛, 杉江隆一, 本田善央, 天野浩, 赤崎勇, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

    ISSN: 2436-7613

  13. Luminescence studies of p-type Mg-implanted GaN using vacancy-guided Mg diffusion

    嶋紘平, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 小島一信, 上殿明良, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 68th 2021

  14. Characterization of optical properties of c-plane Al0.83In0.17N/GaN lattice-matched heterostructures

    LI Liyang, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 上殿明良, 石橋章司, 竹内哲也, 三好実人, 秩父重英

    電子情報通信学会技術研究報告(Web) 121 (259(ED2021 15-36)) 2021

    ISSN: 2432-6380

  15. Spatially resolved CL studies of h-BN films on sap. by CVD using C-free precursors

    秩父重英, 嶋紘平, 梅原直己, 小島一信, 原和彦, 原和彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 82nd 2021

  16. Study of Mg activation process in Mg-implanted GaN by means of positron annihilation

    上殿明良, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 嶋紘平, 小島一信, 秩父重英, 石橋章司

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 82nd 2021

  17. Bulk GaN crystal growth by Low-Pressure Acidic Ammonothermal (LPAAT) method using high quality GaN SCAAT seed crystals

    栗本浩平, BAO Q., 三川豊, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 82nd 2021

  18. Spatially resolved CL of p-type ion-implanted GaN using vacancy-guided Mg diffusion

    嶋紘平, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 小島一信, 上殿明良, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 82nd 2021

  19. Gb/s-class solar-blind optical wireless communication by using AlGaN-based deep-ultraviolet light-emitting diodes

    小島一信, 秩父重英, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 長澤陽祐, 平野光

    Optronics (462) 2020

    ISSN: 0286-9659

  20. Effect of crystal quality and device structure on detection characteristics in BGaN neutron detector

    太田悠斗, 高橋祐吏, 山田夏暉, 宮澤篤也, 中川央也, 川崎晟也, 本田善央, 天野浩, 天野浩, 嶋紘平, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

    ISSN: 2436-7613

  21. CL studies of AlN films grown on high-temperature-annealed sputtered AlN (1)

    嶋紘平, 中須大蔵, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  22. CL studies of AlN films grown on high-temperature-annealed sputtered AlN (2)

    中須大蔵, 嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  23. A solar-blind optical wireless communication over diffuse line-of-site link based on AlGaN light-emitting diodes and multi-pixel photon counter

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  24. Singular structures in m-plane AlInN/GaN heterostructures grown by MOVPE (3) SRCL

    秩父重英, 嶋紘平, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  25. Cathodoluminescence study of Si-doped AlN substrates grown by HVPE on PVT-AlN

    秩父重英, 嶋紘平, 小島一信, MOODY Baxter, 三田清二, COLLAZO Ramon, SITAR Zlatko, SITAR Zlatko, 熊谷義直, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  26. Effects of carbon impurities and nonradiative recombination centers for quantum efficiency of radiation in GaN crystals

    小島一信, 堀切文正, 成田好伸, 吉田丈洋, 藤倉序章, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  27. Spatially resolved cathodoluminescence study of c-plane AlInN films on a GaN substrate

    LI L. Y., 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  28. GaN bulk crystal growth by acidic ammonothermal method using a 4-inch-diam. autoclave

    栗本浩平, 栗本浩平, BAO Q., BAO Q., 斉藤真, 斉藤真, 三川豊, 茅野林造, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  29. Time-resolved Photoluminescence Spectroscopy of Rocksalt-structured MgZnO Films

    工藤幹太, 石井恭平, 小野瑞生, 金子健太郎, 山口智広, 嶋紘平, 小島一信, 藤田静雄, 本田徹, 秩父重英, 尾沼猛儀

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 67th 2020

  30. Bulk GaN crystal growth by Low-pressure acidic ammonothermal (LPAAT) method using 4-inch scale autoclave

    栗本浩平, 栗本浩平, BAO Q., BAO Q., 三川豊, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  31. Singular structures in m-plane AlInN/GaN heterostructures grown by MOVPE (4)

    秩父重英, 嶋紘平, 稲富悠也, 小島一信, 寒川義裕

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  32. Evaluation of DUV Photoluminescence Lifetime in Rocksalt-structured MgZnO Films

    工藤幹太, 石井恭平, 小野瑞生, 金子健太郎, 山口智広, 嶋紘平, 小島一信, 藤田静雄, 本田徹, 秩父重英, 尾沼猛儀

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  33. Origin of a two-peak structure observed in omnidirectional photoluminescence spectroscopy

    小島一信, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  34. CL studies of MOVPE AlN films grown on high-temperature-annealed sputtered AlN (2)

    粕谷拓生, 嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  35. Correlation between quantum efficiency of radiation in GaN crystals and the concentration of carbon impurity

    小島一信, 堀切文正, 成田好伸, 吉田丈洋, 藤倉序章, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  36. CL studies of MOVPE AlN films grown on high-temperature-annealed sputtered AlN (1)

    嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  37. Evaluation for quantum efficiency mapping of GaN wafer by omni-directional photoluminescence (ODPL) spectroscopy

    池村賢一郎, 小島一信, 堀切文正, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  38. Spatially resolved cathodoluminescence study of c-plane AlInN films on GaN substrates

    LI L. Y., 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 81st 2020

  39. 変化するということ Invited

    秩父重英

    応用物理学会結晶工学分科会 クリスタルレターズ (会員の広場) 75 (114) 2020

  40. (巻頭言) 窒化物半導体の物性と新規光デバイスの夢 Invited

    秩父重英

    応用物理学会フォトニクス分科会誌 フォトニクスニュース 第15回フォトニクスニュース「窒化物半導体の発展とフォトニクス応用」 6 (1) 1-1 2020

  41. Frontiers of Nitride Semiconductor Research FOREWORD

    Shigefusa F. Chichibu, Yoshinao Kumagai, Kazunobu Kojima, Momoko Deura, Toru Akiyama, Munetaka Arita, Hiroshi Fujioka, Yasufumi Fujiwara, Naoki Hara, Tamotsu Hashizume, Hideki Hirayama, Mark Holmes, Yoshio Honda, Masataka Imura, Ryota Ishii, Yoshihiro Ishitani, Motoaki Iwaya, Satoshi Kamiyama, Yoshihiro Kangawa, Ryuji Katayama, Yoichi Kawakami, Takahiro Kawamura, Atsushi Kobayashi, Masaaki Kuzuhara, Koh Matsumoto, Yusuke Mori, Takashi Mukai, Hisashi Murakami, Hideaki Murotani, Satoshi Nakazawa, Narihito Okada, Yoshiki Saito, Akira Sakai, Hiroto Sekiguchi, Koji Shiozaki, Kanako Shojiki, Jun Suda, Tetsuya Takeuchi, Tomoyuki Tanikawa, Jun Tatebayashi, Shigetaka Tomiya, Yoichi Yamada

    JAPANESE JOURNAL OF APPLIED PHYSICS 58 2019/06

    DOI: 10.7567/1347-4065/ab1411  

    ISSN: 0021-4922

    eISSN: 1347-4065

  42. 中性子イメージングセンサーに向けたBGaN半導体検出器の開発

    高橋祐吏, 丸山貴之, 山田夏暉, 江原一司, 太田悠人, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

    ISSN: 2436-7613

  43. Quality evaluation of freestanding gallium nitride crystals based on the spectroscopic techniques

    小島一信, 秩父重英

    Jasco Report 61 (1) 2019

    ISSN: 0916-3492

  44. 反応性ヘリコン波励起プラズマスパッタ法によるp型NiO薄膜の堆積

    嶋紘平, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  45. 窒化物半導体特異構造の時間空間分解カソードルミネツセンス評価

    秩父重英, 秩父重英, 秩父重英, 嶋紘平, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  46. Development of a Spatio-time-resolved Cathodoluminescence System Toward the Realization of High-efficient Optical Devices

    小島一信, 秩父重英

    村田学術振興財団年報 (33) 2019

    ISSN: 0919-3383

  47. 深紫外AlGaN発光ダイオードの時間分解エレクトロルミネセンス分光

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  48. 注入深さ・極性面の異なるMgイオン注入GaNのフォトルミネッセンス

    秩父重英, 秩父重英, 秩父重英, 嶋紘平, 井口紘子, 成田哲生, 片岡恵太, 小島一信, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  49. 容量測定を用いたp-GaNエピへの低濃度Mg注入と共注入影響の評価

    高島信也, 上野勝典, 田中亮, 松山秀昭, 江戸雅晴, 嶋紘平, 小島一信, 秩父重英, 秩父重英, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  50. マクロステップを持つc面AlN/サファイアテンプレート上に成長させたAlGaN量子井戸の構造解析(1)

    小島一信, 長澤陽祐, 平野光, 一本松正道, 本田善央, 天野浩, 天野浩, 天野浩, 赤崎勇, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  51. 自己吸収過程を考慮した発光量子効率の解析式

    浅井栄大, 小島一信, 秩父重英, 福田浩一

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  52. 自立窒化ガリウム結晶の角度分解フォトルミネセンス分光

    小島一信, 池村賢一郎, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  53. マクロステップを持つc面AlN/サファイアテンプレート上に成長させたAlGaN量子井戸の構造解析(2)

    長澤陽祐, 小島一信, 平野光, 一本松正道, 本田善央, 天野浩, 赤崎勇, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  54. 薄膜固体二次電池の充放電解析

    津国和之, 殿川孝司, 小島一信, 秩父重英

    電気化学会大会講演要旨集(CD-ROM) 86th 2019

  55. 水熱合成単結晶ZnO基板の薄膜化プロセスと微小共振器構造への応用

    嶋紘平, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 66th 2019

  56. ZnO微小共振器の作製と室温における共振器ポラリトン形成

    嶋紘平, 小島一信, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  57. 多光子励起による窒化ガリウム結晶の時間分解フォトルミネセンス分光(1)

    谷川智之, 小島一信, 粕谷拓生, 秩父重英, 田中敦之, 本田善央, 天野浩, 上向井正裕, 片山竜二

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  58. 気相成長m面自立AlN基板およびホモエピタキシャル層の偏光特性と発光ダイナミクス

    秩父重英, 小島一信, 羽豆耕治, 石川陽一, 古澤健太郎, 三田清二, COLLAZO Ramon, SITAR Zlatko, 上殿明良

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  59. 温度可変全方位フォトルミネセンス分光装置の実現

    小島一信, 池村賢一郎, 中村明裕, 齋藤琢也, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  60. 深紫外AlGaN発光ダイオードの顕微エレクトロルミネセンス測定

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  61. H2キャリアガスを用いたBGaN結晶成長メカニズムの解析

    清水勇希, 江原一司, 新宅秀矢, 井上翼, 青木徹, 嶋紘平, 小島一信, 秩父重英, 秩父重英, 中野貴之, 中野貴之

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  62. 多光子励起による窒化ガリウム結晶の時間分解フォトルミネセンス分光(2)

    小島一信, 谷川智之, 粕谷拓生, 上向井正裕, 片山竜二, 田中敦之, 本田善央, 天野浩, 秩父重英, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  63. 酸性アモノサーマル法によるGaNバルク結晶成長

    栗本浩平, 栗本浩平, BAO Q., BAO Q., 斉藤真, 斉藤真, 茅野林造, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  64. BGaN結晶成長におけるTMB流量依存性の検討および中性子検出デバイスの作製

    太田悠斗, 高橋祐吏, 丸山貴之, 山田夏暉, 中川央也, 川崎晟也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 嶋紘平, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之, 中野貴之

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

    ISSN: 2436-7613

  65. ZnOの反応性イオンエッチングによる損傷とHClによる損傷回復

    中須大蔵, 嶋紘平, 小島一信, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  66. 発光量子効率におけるフォトンリサイクル効果の理論解析

    浅井栄大, 小島一信, 秩父重英, 福田浩一

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 80th 2019

  67. ZnOの反応性イオンエッチングにおけるプラズマ損傷とHCl浸漬処理による損傷回復

    中須大蔵, 嶋紘平, 小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 19th 2019

  68. An Outdoor Evaluation of 1-Gbps Optical Wireless Communication using AlGaN-based LED in 280-nm Band Peer-reviewed

    Yoshida Y, Kojima K, Shiraiwa M, Awaji Y, Kanno A, Yamamoto N, Chichibu S.F, Hirano A, Ippommatsu M

    2019 Conference on Lasers and Electro-Optics, CLEO 2019 - Proceedings 2019

    DOI: 10.23919/CLEO.2019.8750309  

  69. 超臨界アンモニアを用いた酸性アモノサーマル法による2インチバルクGaN結晶育成

    包全喜, 斉藤真, 栗本浩平, 嶋紘平, 冨田大輔, 小島一信, 石黒徹, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 83rd ROMBUNNO.M202 2018/03/13

  70. Mgイオン注入N極性面GaNの時間分解フォトルミネッセンス評価

    嶋紘平, 井口紘子, 成田哲生, 片岡恵太, 上殿明良, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th ROMBUNNO.19a‐C302‐6 2018/03/05

  71. 反応性ヘリコン波励起プラズマスパッタ法による誘電体分布ブラッグ反射鏡の形成(2)

    嶋紘平, 粕谷拓生, 粕谷拓生, 菊地清, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th ROMBUNNO.18p‐E201‐7 2018/03/05

  72. 反応性ヘリコン波励起プラズマスパッタ法による誘電体分布ブラッグ反射鏡の形成(1)

    粕谷拓生, 粕谷拓生, 嶋紘平, 菊地清, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th ROMBUNNO.18p‐E201‐6 2018/03/05

  73. 酸性アモノサーマル法による大型GaN結晶成長の検討

    斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 栗本浩平, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th ROMBUNNO.18p‐E202‐6 2018/03/05

  74. 厚膜BGaN中性子半導体検出器の作製と放射線検出特性評価

    丸山貴之, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

    ISSN: 2436-7613

  75. MOVPE法を用いた厚膜BGaN結晶成長の検討および縦型中性子検出デバイスの作製

    丸山貴之, 高橋祐吏, 山田夏暉, 江原一司, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

    ISSN: 2436-7613

  76. BGaN半導体検出器の厚膜化および放射線検出特性評価

    高橋祐吏, 丸山貴之, 山田夏暉, 江原一司, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

    ISSN: 2436-7613

  77. 赤色蛍光体(CaAlSiN3:Eu)の高温劣化機構の評価

    大石昌嗣, 大石昌嗣, 塩見昌平, 山本孝, 植木智之, 改井陽一郎, 秩父重英, 高取愛子, 小島一信, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  78. GaN単結晶における光励起キャリアの空間的不均一と内部量子効率の関係(1)

    浅井栄大, 小島一信, 福田浩一, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  79. GaN単結晶における光励起キャリアの空間的不均一と内部量子効率との関係(2)

    小島一信, 浅井栄大, 福田浩一, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  80. Mgイオン注入GaN MOSFETのチャネル特性向上

    高島信也, 田中亮, 上野勝典, 松山秀昭, 江戸雅晴, 小島一信, 秩父重英, 秩父重英, 上殿明良, 中川清和

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  81. GaNの二光子励起フォトルミネッセンス測定における自己吸収の影響

    谷川智之, 小島一信, 秩父重英, 松岡隆志

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  82. 六方晶BNの薄膜成長とその深紫外発光評価

    原和彦, 原和彦, 梅原直己, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  83. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(2)

    稲富悠也, 草場彰, 柿本浩一, 柿本浩一, 寒川義裕, 寒川義裕, 寒川義裕, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  84. サファイア基板に気相成長させた六方晶BN薄膜の発光スペクトル

    秩父重英, 梅原直己, 小島一信, 原和彦, 原和彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  85. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(1)

    秩父重英, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  86. ZnO単結晶の絶対輻射量子効率測定(2)

    小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  87. 有機金属気相成長法にて自立GaN基板上に成長させたGaNホモエピタキシャル層の光物性評価

    小島一信, 堀切文正, 成田好伸, 吉田丈洋, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 65th 2018

  88. 反応性ヘリコン波励起プラズマスパッタ法によるSiO2/HfO2誘電体分布ブラッグ反射鏡の作製

    嶋紘平, 粕谷拓生, 粕谷拓生, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  89. 高純度ZnO中のSRH型非輻射再結合中心の起源と捕獲断面積

    秩父重英, 小島一信, 小池一歩, 矢野満明, 權田俊一, 石橋章司, 上殿明良

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  90. 時間分解フォトルミネッセンスによるZnOのプロセス誘起欠陥の評価

    粕谷拓生, 粕谷拓生, 嶋紘平, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  91. サファイア基板に気相成長させたh-BN薄膜の発光ダイナミクス

    秩父重英, 嶋紘平, 梅原直己, 小島一信, 原和彦, 原和彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  92. 空間・時間分解PLを用いたGaNの局所励起子応答

    神山晃範, 小島一信, 遊佐剛, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

    ISSN: 2436-7613

  93. バンド端近傍発光の外部量子効率が4%を超える六方晶BN単結晶の光学評価

    小島一信, 渡邊賢司, 谷口尚, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  94. 280nm帯深紫外AlGaN発光ダイオードを用いた日光下における1.6Gbps光無線伝送

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 79th 2018

  95. 深紫外発光ダイオードを用いたソーラーブラインド・ギガビット級光無線伝送

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 18th 2018

  96. 1.6-Gbps LED-Based Ultraviolet Communication at 280 nm in Direct Sunlight Peer-reviewed

    Kojima K, Yoshida Y, Shiraiwa M, Awaji Y, Kanno A, Yamamoto N, Chichibu S

    European Conference on Optical Communication, ECOC 2018-September 2018

    DOI: 10.1109/ECOC.2018.8535544  

  97. Determination of Deformation Potentials in InGaN Alloy Material for Theoretical Prediction of Optical Gain Characteristics in Semipolar and Nonpolar InGaN Quantum Wells Laser Diodes Peer-reviewed

    Sakai S, Kojima K, Chichibu S.F, Yamaguchi A.A

    Conference Digest - IEEE International Semiconductor Laser Conference 2018-September 135-136 2018

    DOI: 10.1109/ISLC.2018.8516203  

  98. 酸性鉱化剤を用いたアモノサーマル法による電子デバイス用GaN結晶合成の進展

    秩父重英, 斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 冨田大輔, 嶋紘平, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th ROMBUNNO.6p‐A301‐2 2017/08/25

  99. GaN基板上Mg添加GaNの時間分解フォトルミネッセンス評価

    秩父重英, 秩父重英, 小島一信, 嶋紘平, 高島信也, 江戸雅晴, 上野勝典, 石橋章司, 上殿明良

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th ROMBUNNO.7a‐S22‐10 2017/08/25

  100. 超臨界アンモニアを用いた酸性アモノサーマル法によるGaN結晶育成

    包全喜, 斉藤真, 栗本浩平, 小島一信, 冨田大輔, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 82nd 2017

  101. 高品質GaN単結晶の絶対輻射量子効率測定(4)

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 64th 2017

  102. マクロステップを有するc面AlGaN量子井戸発光ダイオード構造の発光特性

    小島一信, 長澤陽祐, 平野光, 一本松正道, 本田善央, 天野浩, 天野浩, 天野浩, 赤崎勇, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 64th 2017

  103. ZnO単結晶の絶対輻射量子効率測定

    小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 64th 2017

  104. GaN基板上イオン注入およびエピタキシャル成長Mg添加GaNのフォトルミネッセンス評価(2)

    秩父重英, 秩父重英, 小島一信, 高島信也, 江戸雅晴, 上野勝典, 清水三聡, 高橋言緒, 石橋章司, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 64th 2017

  105. m面AlInNエピタキシャルナノ構造を用いた偏光光源の可能性

    秩父重英, 小島一信, 上殿明良, 佐藤義孝

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 64th 2017

  106. 偏光遷移領域におけるc面AlGaN量子井戸構造の量子細線型状態密度

    坂井繁太, 南琢人, 小島一信, 秩父重英, 山口敦史

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th 2017

  107. 二次組成変調によって電子・正孔波動関数の重なり積分を増強させたc面AlGaN多重量子井戸の発光特性評価

    小島一信, 林侑介, 三宅秀人, 平松和政, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th 2017

  108. 光励起下のGaN単結晶における内部量子効率の空間的不均一

    小島一信, 浅井栄大, 福田浩一, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th 2017

  109. 減衰全反射法を用いたGaN単結晶の表面状態評価

    小島一信, 赤尾賢一, 菅野美幸, 水野広介, 永森浩司, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 78th 2017

  110. Deep-UV cathodoluminescence from the hexagonal boron nitride thin films grown on sapphire substrates

    原和彦, 原和彦, 梅原直己, 秩父重英, 小島一信, 光野徹也, 小南裕子

    結晶成長国内会議予稿集(CD-ROM) 46th 2017

    ISSN: 0385-6275

  111. Measurements of quantum efficiency of radiation in nitride semiconductors based on omnidirectional photoluminescence (ODPL) spectroscopy

    小島一信, 三宅秀人, 平松和政, 秩父重英

    結晶成長国内会議予稿集(CD-ROM) 46th 2017

    ISSN: 0385-6275

  112. AlInNを用いた深紫外光源の開発~薄膜成長における組成引込現象の理論解析~

    稲富悠也, 寒川義裕, 寒川義裕, 寒川義裕, 小島一信, 秩父重英, 秩父重英, 柿本浩一

    東北大学多元物質科学研究所研究発表会講演予稿集 17th 2017

  113. 積分球を用いた窒化ガリウム単結晶の光物性評価

    小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 17th 2017

  114. Liquid-Crystalline Organic-Inorganic Hybrid Dendrimer with a Monodispersed CdS Nano-Core: Self-Organized Stracture-Dependent Photoluminescence Emission-Quenching Behavior

    Kanie Kiyoshi, Ungar Goran, Matsubara Masaki, Stevenson Warren, Yabuki Jyun, Zeng Xiangbing, Kojima Kazunobu, Chichibu Shigefusa, Tamada Kaoru, Muramatsu Atsushi

    Proceedings of Japanese Liquid Crystal Society Annual meeting 2017 (0) 3A03 2017

    Publisher: THE JAPANESE LIQUID CRYSTAL SOCIETY

    DOI: 10.11538/ekitou.2017.0_3A03  

    ISSN: 1880-3490

  115. 単分散球状CdSナノ粒子をコアとする液晶性有機無機ハイブリッドデンドリマー:自己組織構造由来の蛍光特性の発現

    蟹江澄志, 松原正樹, STEVENSON Warren, 矢吹純, ZENG Xiangbing, DONG Haoliang, 小島一信, 秩父重英, 玉田薫, 村松淳司, UNGAR Goran, UNGAR Goran

    ナノ学会大会講演予稿集 14th 67 2016/06/14

    ISSN: 1347-8028

  116. Si系剥片状ナノ材料の光物性・光触媒特性

    板原浩, WU Xiaoyong, 山崎芳樹, 今川晴雄, YIN Shu, 小島一信, 秩父重英, 佐藤次雄

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  117. 90%を超える電子・正孔波動関数の重なり積分を達成可能なAlGaN量子井戸の設計指針

    小島一信, 山崎芳樹, 古澤健太郎, 三宅秀人, 平松和政, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  118. 高品質GaN単結晶の絶対輻射量子効率測定

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  119. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(IV)

    秩父重英, 小島一信, 山崎芳樹, 佐藤義孝, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  120. 低貫通転位密度Zn極性ZnOホモエピタキシャル薄膜への3d遷移金属添加によるキャリア寿命制御

    秩父重英, 小島一信, 山崎芳樹, 古澤健太郎, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  121. 組成揺らぎを考慮したAlGaNおよびInGaN量子井戸における光学利得の理論的比較

    南琢人, 小島一信, 坂井繁太, 秩父重英, 山口敦史

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  122. 高キャリア濃度n型m面GaN単結晶におけるホットキャリアの輻射再結合ダイナミクス

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  123. 時間空間分解カソードルミネッセンスによるIII族窒化物半導体の評価

    秩父重英, 山崎芳樹, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 63rd 2016

  124. 酸性アモノサーマル法による高品質GaN結晶の育成

    包全喜, 斉藤真, 栗本浩平, 小島一信, 山崎芳樹, 冨田大輔, 喬焜, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 81st 2016

  125. 高品質GaN単結晶の絶対輻射量子効率測定(2)

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 77th 2016

  126. 高品質GaN単結晶の絶対輻射量子効率測定(3)

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 77th 2016

  127. GaN基板上に作製されたMgイオン注入およびエピタキシャル成長Mg添加GaNのフォトルミネッセンス評価

    小島一信, 高島信也, 江戸雅晴, 上野勝典, 清水三聡, 高橋言緒, 石橋章司, 上殿明良, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 77th 2016

  128. 固相剥離法によるSi系剥片状ナノ粒子の合成と光物性・光触媒特性

    板原浩, 今川晴雄, WU X., 山崎芳樹, YIN S., 小島一信, 秩父重英, 佐藤次雄

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM) 29th 2016

  129. 酸性アモノサーマル法によるバルクGaN結晶の育成

    包全喜, 包全喜, 斉藤真, 斉藤真, 栗本浩平, 栗本浩平, 小島一信, 冨田大輔, 喬焜, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 16th 2016

  130. 酸性アモノサーマル法による高品位バルクGaN結晶の高速成長

    栗本浩平, 包全喜, 包全喜, 斉藤真, 斉藤真, 茅野林造, 小島一信, 石黒徹, 秩父重英

    日本金属学会講演概要(CD-ROM) 158th 2016

    ISSN: 2433-3093

  131. Polarity dependent radiation hardness of GaN Peer-reviewed

    Masayuki Matsuo, Takayuki Murayama, Kazuto Koike, Shigehiko Sasa, Mitsuaki Yano, Shun-ichi Gonda, Akira Uedono, Ryoya Ishigami, Kyo Kume, Tomomi Ohtomo, Erika Furukawa, Yoshiki Yamazaki, Kazunobu Kojima, Shigefusa Chichibu

    2015 IEEE International Meeting for Future of Electron Devices, Kansai (IMFEDK) 2015/06

    DOI: 10.1109/imfedk.2015.7158544  

  132. ミストCVDによって作製したコランダム型酸化インジウム(α‐In2O3)の特性評価

    須和祐太, 川原村敏幸, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd ROMBUNNO.13A-P18-14 2015/02/26

  133. 酸性アモノサーマル法によるGaN結晶育成に及ぼす圧力の効果

    栗本浩平, 栗本浩平, BAO Q., BAO Q., 斉藤真, 斉藤真, 冨田大輔, 伊藤みずき, 山崎芳樹, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd 2015

  134. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー(3):浅い不純物に関する考察

    山崎芳樹, 古澤健太郎, 岩橋咲弥, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd 2015

  135. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(III)

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd 2015

  136. m面Al1-xInxN薄膜の分光エリプソメトリーによる評価

    加賀谷大樹, 山崎芳樹, 池田宏隆, 藤戸健史, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd 2015

  137. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー(4):遷移金属不純物に関する考察

    岩橋咲弥, 山崎芳樹, 小島一信, 古澤健太郎, 上殿明良, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 62nd 2015

  138. 酸性アモノサーマル法による高品位GaN高速育成

    斉藤真, 斉藤真, BAO Q., BAO Q., 栗本浩平, 栗本浩平, 冨田大輔, 小島一信, 山崎芳樹, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 76th 2015

  139. 酸性アモノサーマル法合成GaN種結晶上にハイドライド気相エピタキシャル成長させたm面自立GaN基板の電気的・光学的特性

    小島一信, 塚田悠介, 古川えりか, 斉藤真, 斉藤真, 三川豊, 久保秀一, 池田宏隆, 藤戸健史, 上殿明良, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 76th 2015

  140. 酸性アモノサーマル法による高品位バルクGaN結晶成長

    斉藤真, 斉藤真, BAO Q., BAO Q., 栗本浩平, 栗本浩平, 冨田大輔, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    結晶成長国内会議予稿集(CD-ROM) 45th 2015

    ISSN: 0385-6275

  141. 高品質GaN単結晶における自由励起子とドナー束縛励起子の発光ダイナミクス

    小島一信, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 76th 2015

  142. 水熱合成ZnOターゲットを用いた低ドナー不純物濃度ZnO薄膜のヘリコン波励起プラズマスパッタエピタキシャル成長

    古澤健太郎, 山崎芳樹, 小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 15th 2015

  143. 液晶性有機無機ハイブリッドデンドリマー:自己組織化CdS量子ドットのフォトルミネッセンス挙動

    松原正樹, 松原正樹, STEVENSON Warren, 矢吹純, 山崎芳樹, 小島一信, 秩父重英, ZENG Xiangbing, DONG Haoliang, UNGAR Goran, 蟹江澄志, 村松淳司

    東北大学多元物質科学研究所研究発表会講演予稿集 15th 36 2015

  144. フェムト秒集束パルス電子線を用いた特異構造界面の発光ダイナミクス解析

    秩父重英, 石川陽一, 山崎芳樹, 小島一信

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 75th 2014

  145. 酸性アモノサーマル法による高品位GaN高速育成

    斉藤真, 斉藤真, BAO Q., BAO Q., 栗本浩平, 栗本浩平, 冨田大輔, 小島一信, 山崎芳樹, 鏡谷勇二, 茅野林造, QIAO K., 石黒徹, 横山千昭, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 75th 2014

  146. m面GaN基板上に成長したAl1-xInxNエピタキシャル薄膜の偏光特性

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 75th 2014

  147. 混晶組成変調によるSi添加AlGaN多重量子井戸の発光効率向上

    山崎芳樹, 古澤健太郎, 小島一信, 中濱和大, 三宅秀人, 平松和政, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 75th 2014

  148. 酸化亜鉛の放射線耐性

    小池一歩, 藤本龍吾, 和田涼太, 佐々誠彦, 矢野満明, 權田俊一, 羽豆耕治, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 12th 2012

  149. 23aJA-6 Polarized XAFS analyses of m-plane InGaN films

    Miyanaga T., Azuhata T., Nitta K., Chichibu S. F.

    Meeting abstracts of the Physical Society of Japan 66 (2) 1001-1001 2011/08/24

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  150. 電子線照射によるCIGS太陽電池の電気的・光学的特性への影響

    廣瀬維子, 藁澤萌, 高倉健一郎, 木村真一, 秩父重英, 大山英典, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 71st ROMBUNNO.17P-NA-3 2010/08/30

  151. Exciton emission mechanism in AlN epitaxial films

    ONUMA Takeyoshi, HAZU Kouji, SOTA Takayuki, UEDONO Akira, CHICHIBU Shigefusa F.

    IEICE technical report 109 (288) 29-32 2009/11/12

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Exciton fine structures were observed in partially polarized optical reflectance and cathodoluminescence (CL) spectra of AlN epilayers grown by low-pressure metalorganic vapor phase epitaxy on (0001) Al_2O_3 substrates. A few free and four bound exciton lines were clearly resolved in the low-temperature CL spectra of the lowest threading dislocation density (2×10^8cm^<-2>) AlN film. From the energy difference between the ground- and the first-excited states, the hydrogenic A-exciton binding energy in the compressively strained (Δa/a&cong;-1.68%) AlN was estimated to be 51meV.

  152. Exciton emission mechanism in AlN epitaxial films

    ONUMA Takeyoshi, HAZU Kouji, SOTA Takayuki, UEDONO Akira, CHICHIBU Shigefusa F.

    IEICE technical report 109 (289) 29-32 2009/11/12

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Exciton fine structures were observed in partially polarized optical reflectance and cathodoluminescence (CL) spectra of AlN epilayers grown by low-pressure metalorganic vapor phase epitaxy on (0001) Al_2O_3 substrates. A few free and four bound exciton lines were clearly resolved in the low-temperature CL spectra of the lowest threading dislocation density (2×10^8cm^<-2>) AlN film. From the energy difference between the ground- and the first-excited states, the hydrogenic A-exciton binding energy in the compressively strained (Δa/a&cong;-1.68%) AlN was estimated to be 51meV.

  153. Preface for Special Issue on Defects in Nitride Semiconductors

    FUJIOKA Hiroshi, CHICHIBU Shigefusa

    Journal of the Japanese Association of Crystal Growth 36 (3) 147-147 2009/10/31

    Publisher: The Japanese Association for Crystal Growth (JACG)

    ISSN: 0385-6275

  154. Cu(In,Ga)Se2薄膜太陽電池の耐粒子線特性に関する考察

    廣瀬維子, 安庭宗弘, 高倉健一郎, 藤原千佳, 中西久幸, 秩父重英, 大山英典, 木村真一, 杉山睦

    応用物理学会学術講演会講演予稿集 70th (3) 1309 2009/09/08

  155. Cu(In,Ga)Se2薄膜のガンマ線照射による影響

    村澤一樹, 安庭宗弘, 梅澤明央, 深山敦, 中西久幸, 秩父重英, 木村真一, 杉山睦

    応用物理学関係連合講演会講演予稿集 55th (3) 1505 2008/03/27

  156. AlN,GaNにおける貫通転位密度と点欠陥密度の関係

    秩父重英, 秩父重英, 小山享宏, 小山享宏, 菅原茉莉子, 星拓也, CANTU P., KAEDING J. F., SHARMA R., 小坂圭, 浅井圭一郎, 角谷茂明, 柴田智彦, 田中光浩, 尾沼猛儀, 尾沼猛儀, KELLER S., MISHRA U. K., DENBAARS S. P., DENBAARS S. P., 中村修二, 中村修二, 宗田孝之, 上殿明良

    応用物理学会学術講演会講演予稿集 68th (1) 2007

  157. Fabrication of a CuInSe2 pn junction prepared by thermal diffusion of Zn using Dimethylzinc

    A.Miyama, T.Yasuniwa, A.Umezawa, H.Nakanishi, M.Sugiyama, S.F.Chichibu

    17th International Photovoltaic Science and Engineering Conference (PVSEC-15) Technical Digest 2007

  158. 29pXD-5 Localization of luminescence and carrier dynamics in InGaN/GaN single quantum well structure

    Miyaoka Y., Yamamoto N., Chichibu S.F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 61 (1) 949-949 2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  159. 28aPS-18 Relaxation dynamics of excitons in c- and a-face GaN

    Hazu K., Ikeda H., Oshima S., Sota T., Chichibu S.F., Haskell B.A., Speck J.S., DenBaars S.P., Nakamura S.

    Meeting abstracts of the Physical Society of Japan 61 (1) 728-728 2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  160. 20aYN-2 Indium compositional fluctuation and carrier dynamics in the InGaN/CaN single quantum well structure

    Miyaoka Y., Yamamoto N., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 60 (2) 809-809 2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  161. 27aYM-9Relation between luminescence distribution and dislocations in an InGaN layer

    Miyaoka Y., Yamamoto N., Chichibu S.F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 60 (1) 929-929 2005/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  162. ジエチルセレンを用いたセレン化法によるCuGaSe2薄膜成長

    深谷 真大, 木下 淳紀, 波能 康晴, 杉山 睦, 秩父 重英, 中西 久幸

    多元機能材料研究会平成16年度成果報告集 32-35 2005

  163. CuGaSe2薄膜に対する電極材料の検討

    村山 聡, 深谷 真大, 木下 淳紀, 波能 康晴, 杉山 睦, 秩父 重英, 中西 久幸

    多元機能材料研究会平成16年度成果報告集 20-23 2005

  164. Preparation of CuInS2 Thin Films by Thermal Decomposition of Metal-Octoate and Subsequent Sulfurization Using DTBS.

    T.Hashimoto, S.Merdes, H.Nakahishi, S.F.Chichibu, S.Ando

    Proceedings of 20th European Photovoltaic Solar and Energy Conference and Exhibition (EU-PVSEC-20 1926-1929 2005

  165. 15aTJ-1 Relation between luminescence distribution and strain field around dislocations in an InGaN layer

    Miyaoka Y., Yamamoto N., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 59 (2) 882-882 2004/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  166. 28pXQ-3 Four-wave mixing signals at C-exciton rcsonances in ZnO

    Hazu K., Sota T., Adachi S., Chichibu SF.

    Meeting abstracts of the Physical Society of Japan 59 (1) 741-741 2004/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  167. 30aPS-24 Selective excitation of biexcitons in ZnO by controlled two-photon coherence

    Adachi S., Hazu K., Sota T., Suzuki K., Chichibu S. F.

    Meeting abstracts of the Physical Society of Japan 59 (1) 760-760 2004/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  168. Effect of Annealing on the Crystallinity of ZnS Thin Films for CIGS-Based Solar Cells Prepared by Chemical Bath Deposition Method.

    H.Sakuno, H.Nakanishi, S.F.Chichibu, S.Ando

    Technical Digest of the International PVSEC-14 2 709-710 2004

  169. Influence nonstoichiomety and layer structure of Cu-In precursor on the CIS film properties prepared by the selenization technique using diethylselenide as a Se source.

    J.Ishizuki, S.Ando, S.F.Chichibu, H.Nakanishi

    Technical Digest of the International PVSEC-14 2 615-616 2004

  170. Preparation of CuInSe2 Thin Films by Metal-organic Decomposition with Oxidation-reduction and Subsequent Selenization using Diethylselenide.

    N.Takayama, H.Nakanishi, S.F.Chichibu, S.Ando

    Technical Digest of the International PVSEC-9 525-526 2004

  171. Temperature dependence of four-wave mixing signals in ZnO

    Hazu K., Sota T., Suzuki K., Adachi S., Chichibu SF.

    Meeting abstracts of the Physical Society of Japan 58 (2) 617-617 2003/08/15

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  172. FWM measurements of exciton-exciton correlation in ZnO

    Adachi S., Hazu K., Sota T., Suzuki K., Chichibu SF.

    Meeting abstracts of the Physical Society of Japan 58 (1) 691-691 2003/03/06

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  173. Valence-band ordering in ZnO

    Hazu K., Torii K., Sota T., Suzuki K., Adachi S., Chichibu SF.

    Meeting abstracts of the Physical Society of Japan 58 (1) 691-691 2003/03/06

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  174. 塗布熱分解法およびDESeを用いたセレン化法によるCuInSe2薄膜の作製と評価

    高山直樹, 宮地順子, 山本貴史, 出口隆弘, 中西久幸, 秩父重英, 安藤靜敏

    応用物理学会 三元・多元機能性材料研究会 平成14年度成果報告書 65-68 2003/03

  175. ジエチルセレンを用いたSe化法によるCuInSe2薄膜の成長過程の観察

    中村元宜, 山本貴史, 石附純, 安藤靜敏, 出口隆弘, 中西久幸, 秩父重英

    応用物理学会 三元・多元機能性材料研究会 平成14年度成果報告書 61-64 2003/03

  176. DESeによるSe化法を用いたCuInSe2薄膜の作製及び構造評価

    石附純, 山本貴史, 中村元宜, 出口隆弘, 安藤靜敏, 中西久幸, 秩父重英

    応用物理学会 三元・多元機能性材料研究会 平成14年度成果報告書 57-60 2003/03

  177. Dephasing dynamics in exciton-biexciton system of GaN

    Adachi S., Hazu K., Sota T., Suzuki K., Chichibu S., Mukai T.

    Meeting abstracts of the Physical Society of Japan 57 (2) 608-608 2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  178. Optical nonlinearities of excitons in GaN using pump and probe spectroscopy

    Hazu K., Sota T., Suzuki K., Adachi S., Chichibu S., Mukai T.

    Meeting abstracts of the Physical Society of Japan 57 (2) 608-608 2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  179. Brillouin scattering in ZnO

    Azuhata T., Takesada M., Yagi T., Shikanai A., Chichibu S., Torii K., Sota T.

    Meeting abstracts of the Physical Society of Japan 57 (2) 790-790 2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  180. Effect of defects on luminescence properties of InGaN layers studied by TEM - CL technique

    Horiuchi D., Yamamoto N., Chichibu S.F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 57 (2) 805-805 2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  181. Comparison of Emission Properties between Cubic and Hexagonal InGaN : Effects of Polarization Field and Exciton Localization

    CHICHIBU Shigefusa F., KURODA Tsunemasa, ONUMA Takeyoshi, KITAMURA Toshio, SOTA Takayuki, TACKEUCHI Atsushi, DENBAARS Steven P., NAKAMURA Shuji, OKUMURA Hajime

    Technical report of IEICE. LQE 102 (118) 25-28 2002/06/07

    Publisher: The Institute of Electronics, Information and Communication Engineers

    ISSN: 0913-5685

    More details Close

    Systematic comparison was made for optical properties between cubic and hexagonal InGaN quantum structures. Use of cubic materials made possible to investigate carrier localization phenomena in InGaN QWs without extrinsic electronic modulation due to polarization-induced electric field normal to the QW plane.

  182. 24aWJ-7 Optical Properties of Lattice defects in GaN epitaxial layers

    Itoh H., Grillo V., Yamamoto N., Chichibu S.

    Meeting abstracts of the Physical Society of Japan 57 (1) 876-876 2002/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  183. 24aYE-8 Optical nonlinearities of excitons in GaN using pump and probe methods

    Hazu K., Sota T., Suzuki K., Adachi S., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 57 (1) 665-665 2002/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  184. 25aXR-9 Effect of defects on luminescence properties oflnCaNlayers studied by TEM- CL technique

    Horiuchi D., Yamamoto N., Criila V., Chichibu S.F., Mukae T.

    Meeting abstracts of the Physical Society of Japan 57 (1) 893-893 2002/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  185. Effect of defects on luminescence properties of InGaN layers studied by TEM-CL technique

    Horiuchi D., Grillo V., Yamamoto N., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 56 (2) 778-778 2001/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  186. Exciton-exciton interaction and biexciton formation in GaN eplayers

    Adachi S., Hazu K., Sota T., Suzuki K., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 56 (2) 579-579 2001/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  187. Interaction and dephasing of excitons in GaN

    Hazu K., Sota T., Suzuki K., Adachi S., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 56 (2) 579-579 2001/09/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  188. 立方晶3族窒化物半導体量子構造のMBE成長と評価 (特集 ナイトライドセラミックスの新展開(1))

    奥村 元, 秩父 重英

    マテリアルインテグレ-ション 14 (6) 45-51 2001/06

    Publisher: ティ-・アイ・シ-

    ISSN: 1344-7858

  189. [100]配向高品質β‐FeSi2連続膜の吸収特性

    高倉健一郎, 広井典良, 末益崇, 秩父重英, 長谷川文夫

    応用物理学関係連合講演会講演予稿集 48th (3) 1307 2001/03/28

  190. Dephasing dynamics in GaN eplayers

    Adachi S., Shikanai A., Hazu K., Sota T., Chichibu S. F., Mukai T.

    Meeting abstracts of the Physical Society of Japan 56 (1) 676-676 2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  191. Metalorgranic Vapor Phase Epitaxy of Cu(Al,Ga,In)(S,Se)2 Chalcopyrite Semiconductors

    S.F.Chichibu, S.Shirakata, 中西 久幸

    Ternary and Multinary Compounds in the 21st Century IPAP Books 1 85-90 2001

  192. Optical Absorption of CuInSe2

    S.F.Chichibu, 中西 久幸

    Ternary and Multinary Compounds in the 21st Century IPAP Books 1 285-289 2001

  193. Characterization of defects in GaN by TEM-CL technique

    Ito H., Mita T., Yamamoto N., Chichibu S., DenBaar S. P.

    Meeting abstracts of the Physical Society of Japan 55 (2) 848-848 2000/09/10

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  194. カルコパイライト型三元化合物半導体発光素子材料 (特集 発光材料の展開)

    秩父 重英, 杉山 睦, 中西 久幸

    化学工業 51 (9) 663-669 2000/09

    Publisher: 化学工業社

    ISSN: 0451-2014

  195. β-FeSi2半導体の高圧下における光吸収特性

    寺西良太, 老沼純, 森嘉久, 財部健一, 末益崇, 長谷川文夫, 秩父重英

    応用物理学会学術講演会講演予稿集 61st (3) 2000

  196. Comparison of Optical Properties in GaN/AlGaN and InGaN/AlGaN Single Quantum Wells

    CHICHIBU Shigefusa, DEGUCHI Takahiro, SETOGUCHI Akiko, SUGIYAMA Mutsumi, NAKANISHI Hisayuki, SOTA Takayuki, MUKAI Takashi, NAKAMURA Shuji

    1999 198-199 1999/09/20

  197. Brillouin Scattering Study of h-GaN II

    YAMAGUCHI M., YAGI T., DEGUCHI T., SHIMADA K., SOTA T., SUZUKI K., CHICHIBU S., NAKAMURA S.

    Meeting abstracts of the Physical Society of Japan 53 (2) 275-275 1998/09/05

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  198. 7a-YC-12 Lattice dynamics in CuAlSe_2

    Watanabe M., Azuhata T., Sota T., Chichibu S., Suzuki K.

    Meeting abstracts of the Physical Society of Japan 52 (2) 259-259 1997/09/16

    Publisher: The Physical Society of Japan (JPS)

    ISSN: 1342-8349

  199. Optical properties of h-GaN/Sapphire grown by MOCVD. VIII. Time-resolved spectroscopy. (1).

    出口隆弘, 小豆畑敬, 宗田孝之, 秩父重英, 猿倉信彦, 大竹秀幸, 山中孝弥, 中村修二

    応用物理学関係連合講演会講演予稿集 44th (1) 182 1997/03

  200. 31a-F-6 Brillouin Scattering Study of h-GaN using Tandem Fabry-Perot interferometer

    Azuhata T., Sota T., Suzuki K., Chichibu S., Nakamura S., Yagi T.

    Abstracts of the meeting of the Physical Society of Japan. Annual meeting 51 (2) 124-124 1996/03/15

    Publisher: The Physical Society of Japan (JPS)

  201. Metalorganic Vapor Phase Epitaxy of CuAlxGa1-xSe2 Alloys

    秩父 重英

    Tras.of the Mater.Res.Soc.of Japan 20 727-730 1996

  202. 4p-PSB-10 Lattice dynamics of CuAlS_2 and CuAlSe_2

    Azuhata T., Sota T., Suzuki K., Chichibu S.

    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting 1994 (2) 487-487 1994/08/16

    Publisher: The Physical Society of Japan (JPS)

  203. GROWTH OF CU(ALXGA1-X)SSE PENTENARY ALLOY CRYSTALS BY IODINE CHEMICAL-VAPOR TRANSPORT METHOD

    S CHICHIBU, S SHIRAKATA, A OGAWA, R SUDO, M UCHIDA, Y HARADA, T WAKIYAMA, M SHISHIKURA, S MATSUMOTO, S ISOMURA

    JOURNAL OF CRYSTAL GROWTH 140 (3-4) 388-397 1994/07

    DOI: 10.1016/0022-0248(94)90315-8  

    ISSN: 0022-0248

  204. LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION OF A CUGASE2/CUALSE2 HETEROSTRUCTURE

    S CHICHIBU, R SUDO, N YOSHIDA, Y HARADA, M UCHIDA, S MATSUMOTO, H HIGUCHI

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 33 (3A) L286-L289 1994/03

    DOI: 10.1143/jjap.33.L286  

    ISSN: 0021-4922

  205. Heteroepitaxy and characterization of CuGaSe2 layers grown by low-pressure metalorganic chemical-vapor deposition

    S. Chichibu, Y. Harada, M. Uchida, T. Wakiyama, S. Matsumoto, S. Shirakata, S. Isomura, H. Higuchi

    Journal of Applied Physics 76 (5) 3009-3015 1994

    DOI: 10.1063/1.357503  

    ISSN: 0021-8979

  206. EXCITONIC PHOTOLUMINESCENCE IN A CUALSE2 CHALCOPYRITE SEMICONDUCTOR GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL-VAPOR-DEPOSITION

    S CHICHIBU, S MATSUMOTO, S SHIRAKATA, S ISOMURA, H HIGUCHI

    JOURNAL OF APPLIED PHYSICS 74 (10) 6446-6447 1993/11

    ISSN: 0021-8979

  207. SURFACE PASSIVATION OF GAAS USING ARF EXCIMER-LASER IN A H2S GAS AMBIENT

    N YOSHIDA, S CHICHIBU, T AKANE, M TOTSUKA, H UJI, S MATSUMOTO, H HIGUCHI

    APPLIED PHYSICS LETTERS 63 (22) 3035-3037 1993/11

    DOI: 10.1063/1.110250  

    ISSN: 0003-6951

  208. EL2 OUT-DIFFUSION IN THERMALLY ANNEALED LIQUID-ENCAPSULATED CZOCHRALSKI GAAS

    J OGATA, A IWAI, S CHICHIBU, S MATSUMOTO

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS 32 (11A) 5059-5061 1993/11

    ISSN: 0021-4922

  209. PHOTOREFLECTANCE AND PHOTOLUMINESCENCE STUDIES OF CUALXGA1-XSE2 ALLOYS

    S SHIRAKATA, S CHICHIBU, R SUDO, A OGAWA, S MATSUMOTO, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 32 (9B) L1304-L1307 1993/09

    ISSN: 0021-4922

  210. USE OF TERTIARYBUTYLARSINE IN ARF EXCIMER LASER DOPING OF ARSENIC INTO SILICON

    S CHICHIBU, T NII, T AKANE, S MATSUMOTO

    JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B 11 (2) 341-343 1993/03

    ISSN: 1071-1023

  211. PHOTOREFLECTANCE STUDY OF CUALSE2 HETEROEPITAXIAL LAYERS

    S SHIRAKATA, S CHICHIBU, S MATSUMOTO, S ISOMURA

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS 32 (2A) L167-L169 1993/02

    ISSN: 0021-4922

  212. LP-MOCVD GROWTH OF CUALSE2 EPITAXIAL LAYERS

    S CHICHIBU, A IWAI, S MATSUMOTO, H HIGUCHI

    JOURNAL OF CRYSTAL GROWTH 126 (4) 635-642 1993/02

    DOI: 10.1016/0022-0248(93)90814-D  

    ISSN: 0022-0248

  213. The use of tertialbuthylarsine in ArF excimer laser As doping into Si

    S. Chichibu, T. Nii, T. Akane, S. Matsumoto

    J.Vac.Sci.and Tec 11 (2) 341-343 1993

    DOI: 10.1116/1.586682  

    ISSN: 0734-211X

  214. Monoeneritic positron beam study of heavily Si-doped GaAs grown by MOCVD

    S. Chichibu, A. Iwai, Y. Nakahara, S. Matsumoto, L. Wei, S. Tanigawa

    Materials Science Forum Vol.117-118 243-248 1993

  215. Monoenergetic positron beam study of Si-doped GaAs epilayers grown by low-pressure metalorganic chemical vapor deposition using tertiarybutylarsine

    S. Chichibu, A. Iwai, Y. Nakahara, S. Matsumoto, H. Higuchi, L. Wei, S. Tanigawa

    Journal of Applied Physics 73 (8) 3880-3885 1993

    DOI: 10.1063/1.352900  

    ISSN: 0021-8979

  216. Heavily As doping in Si by ArF excimer laser doping

    S. Chichibu, T. Nii, T. Akane, S. Matsumoto

    Materials Science Forum Vol.117-118 243-248 1993

  217. CuAlSe2 chalcopyrite epitaxial layers grown by low-pressure metalorganic chemical vapor deposition

    S. Chichibu, S. Shirakata, A. Iwai, S. Matsumoto, H. Higuchi, S. Isomura

    Journal of Crystal Growth 131 (3-4) 551-559 1993

    DOI: 10.1016/0022-0248(93)90207-D  

    ISSN: 0022-0248

  218. 2.51 eV photoluminescence from Zn-doped CuAlSe2 epilayers grown by low-pressure metalorganic chemical vapor deposition

    S. Chichibu, S. Matsumoto, S. Shirakata, S. Isomura, H. Higuchi

    Applied Physics Letters 62 (25) 3306-3308 1993

    DOI: 10.1063/1.109054  

    ISSN: 0003-6951

  219. Exitonic photoluminescence in a CuAlSe2 chalcopyrite semiconductor grown by LPMOCVD

    Chichibu, S, Matsumoto, S, Shirakata, S, Isomura, S, Higuchi, H

    J. Appl. Phys 74 (10) 6446-6447 1993

    DOI: 10.1063/1.355129  

    ISSN: 0021-8979

  220. Phtorefle-ctance characteristics of CuAlSe2 Heteroepitaxial Layers Grown by MOCVD

    Shirakata, S, Chichibu, S, Matsumoto,S, Isomura, S

    Jpn. J. Appl. Phys Vol.32 (Suppl.32-3) 494-496 1993

  221. LPMOCVD CuAlSe2 Epitaxial Layers

    Chichibu, S, Shirakata, S, Sudo, R, Uchida, M, Harada, Y, Matsumoto, S, Higuchi, H, Isomura, S

    Jpn. J. Appl. Phys Vol.32 (Suppl.32-3) 71-73 1993

  222. ELECTRICAL AND OPTICAL-PROPERTIES OF CUALSE2 GROWN BY IODINE CHEMICAL VAPOR TRANSPORT

    S CHICHIBU, M SHISHIKURA, J INO, S MATSUMOTO

    JOURNAL OF APPLIED PHYSICS 70 (3) 1648-1655 1991/08

    DOI: 10.1063/1.349531  

    ISSN: 0021-8979

  223. HIGH-CONCENTRATION ZN DOPING IN INP GROWN BY LOW-PRESSURE METALORGANIC CHEMICAL VAPOR-DEPOSITION

    S CHICHIBU, M KUSHIBE, K EGUCHI, M FUNEMIZU, Y OHBA

    JOURNAL OF APPLIED PHYSICS 68 (2) 859-861 1990/07

    ISSN: 0021-8979

  224. EFFECTS OF CONTROLLED AS PRESSURE ANNEALING ON DEEP LEVELS OF LIQUID-ENCAPSULATED CZOCHRALSKI GAAS SINGLE-CRYSTALS

    S CHICHIBU, N OHKUBO, S MATSUMOTO

    JOURNAL OF APPLIED PHYSICS 64 (8) 3987-3993 1988/10

    DOI: 10.1063/1.341358  

    ISSN: 0021-8979

  225. EFFECT OF CARBON CONCENTRATION ON THE THERMAL-CONVERSION OF LIQUID-ENCAPSULATED CZOCHRALSKI SEMI-INSULATING GAAS

    N OHKUBO, S CHICHIBU, S MATSUMOTO

    APPLIED PHYSICS LETTERS 53 (12) 1054-1055 1988/09

    DOI: 10.1063/1.100063  

    ISSN: 0003-6951

  226. EFFECT OF DOPANT CONCENTRATION ON OXIDATION-INDUCED STACKING-FAULTS IN BORON-DOPED CZ SILICON

    S CHICHIBU, T HARADA, S MATSUMOTO

    JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 27 (8) L1543-L1545 1988/08

    ISSN: 0021-4922

  227. EFFECT OF CARBON CONCENTRATION ON THE ELECTRICAL-PROPERTIES OF LIQUID-ENCAPSULATED CZOCHRALSKI SEMIINSULATING GAAS

    S CHICHIBU, S MATSUMOTO, T OBOKATA

    JOURNAL OF APPLIED PHYSICS 62 (10) 4316-4318 1987/11

    ISSN: 0021-8979

  228. THE EFFECT OF AS PRESSURE CONTROLLED ANNEALING ON DEEP LEVELS OF LEC GAAS CRYSTALS

    S CHICHIBU, S MATSUMOTO

    JOURNAL OF THE ELECTROCHEMICAL SOCIETY 134 (9) C576-C576 1987/09

    ISSN: 0013-4651

  229. BASIC STUDIES ON HYPERTENSION AND INTRACRANIAL HYPERTENSION

    Y OHTA, T CHIKUGO, S CHICHIBU, K OKAMOTO

    JAPANESE HEART JOURNAL 26 (4) 701-701 1985

    ISSN: 0021-4868

  230. CALCIUM-CONCENTRATION IN SHR AORTA

    A CHIBA, C KITAGAWA, S CHICHIBU, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 25 (5) 882-882 1984

    ISSN: 0021-4868

  231. THE SHIFT RATE MAP OF THE SURFACE-RECORDED QRS-COMPLEX OF THE RAT

    C KITAGAWA, A CHIBA, S CHICHIBU, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 25 (5) 844-844 1984

    ISSN: 0021-4868

  232. SOME REMARKS ON THE QUANTITATIVE ELASTIN CONCENTRATION ESTIMATION METHOD IN SHRSP AORTIC MEDIA

    S CHICHIBU, C KITAGAWA, A CHIBA, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 24 (5) 826-826 1983

    ISSN: 0021-4868

  233. TEMPORAL DECOLORIZATION EFFECT OF LIGHT AND THE ERROR RANGE IN THE QUANTITATIVE MEASUREMENTS OF ELASTIN IN THE SHRSP AORTA

    C KITAGAWA, S CHICHIBU, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 23 (3) 410-410 1982

    ISSN: 0021-4868

  234. STUDIES ON THE ECG FIELD ON THE BODY-SURFACE OF THE RATS, SHR, WKY AND WISTAR ST STRAINS

    S CHICHIBU, C KITAGAWA, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 23 (3) 416-416 1982

    ISSN: 0021-4868

  235. ELECTRON-MICROSCOPICAL AND SPECTROPHOTOMETRIC EXAMINATION OF MESENTERIC-ARTERY OF SHRSP

    H ITO, S CHICHIBU, K OKAMOTO

    JAPANESE HEART JOURNAL 22 (3) 488-488 1981

    ISSN: 0021-4868

  236. HISTOLOGICAL STUDIES ON STAINING CHARACTERISTIC DIFFERENCES IN ARTERIAL ELASTIC FIBERS

    S CHICHIBU, H ITO, K OKAMOTO

    JAPANESE HEART JOURNAL 21 (4) 596-596 1980

    ISSN: 0021-4868

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Books and Other Publications 11

  1. 応用電子物性分科会誌

    秩父重英, 奥野浩司, 大矢昌輝, 齋藤義樹, 石黒永孝, 竹内哲也, 嶋紘平

    応用電子物性分科会 2024

    More details Close

    応用電子物性分科会/結晶工学分科会 合同研究会 「窒化物半導体発光デバイスの最前線」京都テルサ, 2024年7月3日, 依頼講演

  2. 次世代パワーエレクトロニクスの課題と評価技術

    小島一信, 嶋紘平, 秩父重英

    S&T出版, 岩室憲幸監修 2022/07/27

    ISBN: 9784907002930

  3. 次世代パワーエレクトロニクスの課題と評価技術

    栗本浩平, 包全喜, 三川豊, 嶋紘平, 石黒徹, 秩父重英

    S&T出版, 岩室憲幸監修 2022/07/27

    ISBN: 9784907002930

  4. 次世代パワー半導体の開発・評価と実用化

    三川豊, 秩父重英, 栗本浩平

    (株)エヌ・ティー・エス, 岩室憲幸監修 2022/02/25

  5. Ammonothermal Synthesis and Crystal Growth of Nitrides edited by E. Meissner and R. Niewa

    D. Tomida, M. Saito, Q. Bao, T. Ishiguro, S. F. Chichibu

    Springer (Springer Series in Materials Sciences, Vol. 304) 2021/02/08

  6. III-Nitride Ultlaviolet Emitters - Technology and Applications

    Shigefusa F. Chichibu, Hideto Miyake, Kazumasa Hiramtsu, Akira Uedono

    Springer 2015/11

  7. Technology of Gallium Nitride Crystal Growth

    edited by, D. Ehrentraut, E. Meissner, M. Bockowski

    Springer Series in Materials Sciences 2010/07

  8. 日本結晶成長学会誌

    秩父重英, 上殿明良

    日本結晶成長学会 2009/10

  9. Advances in Light Emitting Materials

    S. F. Chichibu, A. Uedono, T. Onuma, S. P. DenBaars, U. K. Mishra, J. S. Speck, S. Nakamura

    Materials Science Forum 2008

  10. 科学立国日本を築く-極限に挑む気鋭の研究者たち-

    榊裕之監修

    日刊工業新聞社 2006/03/24

  11. Introduction to Nitride Semiconductor Blue Lasers and Light Emitting Diodes

    Taylor and Francis (英国) 2000

Show all Show first 5

Presentations 754

  1. 長寿命高効率深紫外 LED の開発 Invited

    齋藤義樹, 宮﨑敦嗣, 坊山晋也, 三輪浩士, 奥野浩司, 大矢昌輝, 久志本真希, 本田善央, 天野浩, 石黒永考, 竹内哲也, 嶋紘平, 秩父重英

    第17回ナノ構造エピタキシャル成長講演会 2025/07/18

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    (Fr-I3), 招待講演

  2. サファイア基板上への岩塩構造 MgZnO薄膜成長における成長温度・降温速度の効果

    木村航介, 嶋紘平, 松尾浩一, 内田浩二, 大野篤史, 秩父重英, 金子健太郎

    第17回ナノ構造エピタキシャル成長講演会 2025/07/17

  3. Cathodoluminescence studies of layered-structure BN epilayers grown by chemical vapor deposition using carbon-free molecules International-presentation

    S. F. Chichibu, T. Kasuya, H. Tsujitani, K. Hara, K. Shima

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/09

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    No.PC-Wed-4 (oral)

  4. Cathodoluminescence spectroscopy of sp2-hybridized BN thin films grown by metalorganic vapor phase epitaxy using tris(dimethylamino)borane International-presentation

    K. Shima, H. Tsujitani, S. F. Chichibu

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/09

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    No.PC-Wed-2 (oral)

  5. Impacts of ultra-high-pressure annealing on undoped and ion-implanted GaN studied by photoluminescence measurements International-presentation

    K. Shima, T. Narita, A. Uedono, M. Bockowski, J. Suda, T. Kachi, S. F. Chichibu

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/07

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    No.PC-Mon-8 (oral)

  6. Formation of layered polytypes during the thin film growth of boron nitride by chemical vapor deposition using boron trichloride as a boron source International-presentation

    K. Hara, S. Ota, R. Aoike, A. Takemura, H. Nakano, H. Kominami, K. Shima, S. F. Chichibu

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/07

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    No.GR-Mon-B7 (oral)

  7. Causes and countermeasures for the operation-induced power degradation issues in 275-nm-band AlGaN-based MQW LEDs International-presentation Invited

    S. F. Chichibu, K. Okuno, M. Oya, A. Miyazaki, S. Boyama, Y. Saito, Y. Honda, H. Amano, H. Ishiguro, T. Takeuchi, K. Shima

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/08

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    No.OD-Tue-11 (Upgraded Invited-oral)

  8. Annealing behaviors of vacancies and their impact on dopant activation in ion-implanted GaN studied by positron annihilation International-presentation Invited

    A. Uedono, K. Shima, S. F. Chichibu, S. Ishibashi

    The 15th International Conference on Nitride Semiconductors (ICNS-15) 2025/07/08

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    No.PC-Tue-A1 (Invited-oral)

  9. Characterization of vacancy-type defects in Mg- and N-implanted GaN by using a monoenergetic positron beam International-presentation

    A. Uedono, R. Tanaka, S. Takashima, K. Ueno, M. Edo, K. Shima, S. F. Chichibu, J., Uzuhashi, T. Ohkubo, S. Ishibashi, K. Sierakowski, M. Bockowski

    22nd International Workshop on Junction Technology (IWJT2025) 2025/06/06

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    No.S9-2. (oral)

  10. 超高圧アニール処理したMgイオン注入GaNの時間分解フォトルミネッセンス評価

    嶋紘平, 田中亮, 高島信也, 上野勝典, 石橋章司, 上殿明良, 秩父重英

    2025年第72回応用物理学会春季学術講演会 2025/03/17

  11. サファイア基板上岩塩構造MgZnO 薄膜成長における徐冷の効果

    木村航介, 嶋紘平, 松尾浩一, 内田浩二, 大野篤史, 秩父重英, 金子健太郎

    2025年第72回応用物理学会春季学術講演会 2025/03/16

  12. HVPE成長Mg添加p型GaNのフォトルミネッセンススペクトル(II)

    秩父重英, 大西一生, 渡邉浩崇, 新田州吾, 本田善央, 天野浩, 上殿明良, 石橋章司, 嶋紘平

    2025年第72回応用物理学会春季学術講演会 2025/03/16

  13. HVPE成長Si添加ホモエピタキシャルAlNの発光特性

    秩父重英, 菊地清, B. Moody, 三田清二, R. Collazo, Z. Sitar, 熊谷義直, 石橋章司, 上殿明, 良,嶋紘平

    2025年第72回応用物理学会春季学術講演会 2025/03/16

  14. サファイア基板上に有機金属気相成長させたBN薄膜の深紫外発光特性

    嶋紘平, 辻谷陽仁, 秩父重英

    2025年第72回応用物理学会春季学術講演会 2025/03/16

  15. 超高圧アニール処理した無添加およびイオン注入GaNのフォトルミネッセンス評価

    嶋紘平, 石橋章司, 上殿明良, Michal Bockowski, 須田淳, 加地徹, 秩父重英

    2025年第72回応用物理学会春季学術講演会 2025/03/16

  16. Roles of vacancy complexes on the output-power degradation mechanisms of 275-nm -band AlGaN-based deep-ultraviolet light-emitting diodes International-presentation Invited

    S. F. Chichibu, A. Miyazaki, S. Boyama, K. Okuno, M. Oya, Y. Saito, Y. Furusawa, A. Tanaka, R. Tsukamoto, M. Kushimoto, Y. Honda, H. Amano, H. Ishiguro, T., Takeuchi, K. Shima

    17th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2025) 2025/03/06

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    No.06pC11I (Invited-oral).

  17. Room-temperature cavity-polaritons in planar ZnO microcavities fabricated via a top-down process using bulk ZnO single crystals International-presentation

    K. Shima, K. Furusawa, S. F. Chichibu

    11th International Workshop on Semiconductor Oxides (IWSO-2025) 2025/03/05

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    Mar. 5th Session 2-4 (oral)

  18. Origins and dynamic properties of midgap recombination centers in ZnO International-presentation Invited

    S. F. Chichibu, A. Uedono, S. Ishibashi, K. Shima

    11th International Workshop on Semiconductor Oxides (IWSO-2025) 2025/03/03

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    Mar. 3rd Session 3-1 (Invited-oral)

  19. Development for long lifetime and high efficiency DUV LEDs International-presentation Invited

    Y. Saito, A. Miyazaki, S. Boyama, K. Okuno, M. Oya, K. Kataoka, T. Narita, K., Horibuchi, M. Kushimoto, Y. Honda, H. Amano, H. Ishiguro, T. Takeuchi, K. Shima, d, S. F. Chichibu

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2025, OPTO, Gallium Nitride Materials and Devices XX (OE107) 2025/01/30

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    No.13366-52 (Invited-oral)

  20. Power degradation mechanisms of UV-C LEDs under current stress International-presentation Invited

    Y. Honda, S. F. Chichibu, K. Shima, A. Miyazaki, S. Boyama, K. Okuno, Y. Saito, A. Tanaka, T. Takeuchi, M. Kushimoto, H. Amano

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2025, OPTO, Gallium Nitride Materials and Devices XX (OE107) 2025/01/30

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    No.13366-47 (Invited-oral)

  21. Room-temperature photoluminescence lifetimes of Mg-doped p-type GaN layers grown by halide vapor phase epitaxy International-presentation

    S. F. Chichibu, K. Ohnishi, H. Watanabe, S. Nitta, Y. Honda, H. Amano, A. Uedono, S. Ishibashi, K. Shima

    12th International Workshop on Nitride Semiconductors (IWN2024) 2024/11/08

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    Session Characterization: Optical Properties, No.241 (oral)

  22. Minority carrier capture coefficients of major midgap recombination centers in the state-of-the-art GaN substrates, epilayers, and Mg-implanted layers International-presentation

    S. F. Chichibu, K. Shima, A. Uedono, S. Ishibashi, H. Iguchi, T. Narita, K., Kataoka, R. Tanaka, S. Takashima, K. Ueno, M. Edo, H. Watanabe, A. Tanaka, Y., Honda, J. Suda, H. Amano, T. Kachi, T. Nabatame, Y. Irokawa, Y. Koide

    12th International Workshop on Nitride Semiconductors (IWN2024) 2024/11/06

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    Session Characterization: Carrier Dynamics II, No.229 (oral)

  23. Spatio-time-resolved cathodoluminescence study of InGaN/GaN multiquantum shells International-presentation

    K. Shima, W. Lu, T. Takeuchi, S. Kamiyama, S. F. Chichibu

    12th International Workshop on Nitride Semiconductors (IWN2024) 2024/11/05

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    Session Characterization: InGaN, No.60 (oral)

  24. Catalyst-free sputtering growth of Zn1-xMgxO nanorods on c-sapphire substrate using 3D buffer layers International-presentation

    H. Otsuyama, K. Shima, K. Yataka, T. Yunoue, N. Yamashita, S. F. Chichibu, and N., Itagaki

    The 10th International Symposium on Surface Science (ISSS-10) 2024/10/22

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    No.3P06 (Poster)

  25. エミッション顕微鏡を用いたUV-C LEDにおける中長期劣化の観察

    本田善央, 古澤優太, 田中敦之, 塚本涼子, 宮﨑敦嗣, 坊山晋也, 奥野浩司, 齋藤義樹, 嶋紘平, 秩父重英, 石黒永孝, 竹内 哲也, 久志本真希, 天野浩

    2024年第85回応用物理学会秋季学術講演会 2024/09/16

  26. Cathodoluminescence studies of hexagonal BN polytypes and monolayer BN International-presentation Invited

    S. F. Chichibu, K. Hara, T. S. Cheng, C. J. Mellor, P. H. Beton, P. Valvin, B, Gil, G. Cassabois, S. V. Novikov, K. Shima

    European Materials Research Society, 2024 Fall Meeting, Symposium P: Boron Nitride: from advanced growth approaches to advanced applications 2024/09/17

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    No. P05 (Invited-oral)

  27. 低圧酸性アモノサーマル法によるバルクGaN結晶成長 Invited

    栗本浩平, 包全喜, 三川豊, 斉藤真, 嶋紘平, 石黒徹, 秩父重英

    化学工学会第55回秋季大会 2024/09/11

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    (J120) 招待講演

  28. 超臨界アンモニアを用いた窒化物材料の作製 Invited

    冨田大輔, Saskia Schimmel, 本田善央, 天野浩, 嶋紘平, 石黒徹, 秩父重英, 斉藤真, 栗本浩平, 包全喜

    日本セラミックス協会第37回秋季シンポジウム 2024/09/11

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    (2E01) 依頼講演

  29. ワイドギャップ半導体の空孔型欠陥と発光ダイナミクス計測-ZnOとGaNの類似点と相違点- Invited

    秩父重英, 嶋紘平, 上殿明良, 石橋章司

    透明酸化物光・電子材料研究会 第9回(2024年度第2回)研究会 チュートリアル「材料設計・作製・物性評価の基礎および応用」 2024/07/11

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    チュートリアル講演

  30. 275 nm帯AlGaN LEDの初期劣化機構 Invited

    秩父重英, 奥野浩司, 大矢昌輝, 齋藤義樹, 石黒永孝, 竹内哲也, 嶋紘平

    応用電子物性分科会/結晶工学分科会 合同研究会 「窒化物半導体発光デバイスの最前線」 2024/07/03

  31. Transition from etch-back to growth conditions during ammonothermal growth of GaN - a transient numerical model for convective flow and temperature distribution in a retrograde solubility configuration International-presentation

    S. Schimmel, D. Tomida, T. Ishiguro, Y. Honda, S. F. Chichibu, H. Amano

    GaN Marathon 2024 2024/06/11

  32. Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride grown on a highly oriented pyrolytic graphite substrate International-presentation

    K. Shima, T. S. Cheng, C. J. Mellor, P. H. Beton, C. Elias, P. Valvin, B. Gil, G, Cassabois, S. V. Novikov, S. F. Chichibu

    The 7th International Workshop on UV Materials and Devices (IWUMD-VII) 2024/06/04

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    No.TB1-3 (oral)

  33. Developments in highly efficient and long-life AlGaN-based UVC LEDs International-presentation Invited

    Y. Saito, A. Miyazaki, S. Boyama, K. Okuno, M. Oya, K. Kataoka, T. Narita, K, Horibuchi, M. Kushimoto, Y. Honda, H. Amano, H. Ishiguro, T. Takeuchi, K. Shima, d, S. F. Chichibu

    The 7th International Workshop on UV Materials and Devices (IWUMD-VII) 2024/06/04

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    No.TA2-1 (Invited-oral)

  34. Roles of vacancy complexes on the luminescence spectra of Si-doped AlN layers grown by HVPE on (0001) AlN substrates prepared by PVT International-presentation

    S. F. Chichibu, K. Kikuchi, B. Moody, S. Mita, R. Collazo, Z. Sitar, Y. Kumagai, S. Ishibashi, A. Uedono, K. Shima

    The 7th International Workshop on UV Materials and Devices (IWUMD-VII) 2024/06/03

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    No.MA3-5 (oral)

  35. 275 nm帯AlGaN量子井戸LEDの初期劣化について

    秩父重英, 奥野浩司, 大矢昌輝, 齋藤義樹, 石黒永孝, 竹内哲也, 嶋紘平

    第16回ナノ構造エピタキシャル成長講演会 2024/05/31

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    (Fr-P23) (poster)

  36. Mgイオン注入GaNにおける空孔型欠陥のルミネッセンス評価 Invited

    嶋紘平, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 井口紘子, 成田哲生, 片岡恵太, 石橋章司, 上, 殿明良, 秩父重英

    第16回ナノ構造エピタキシャル成長講演会 2024/05/31

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    (Fr-I04), 招待講演

  37. 酸性アモノサーマル法の低圧化と大口径GaNバルク結晶作製技術の進展 Invited

    石黒徹, 斉藤真, 包全喜, 栗本浩平, 冨田大輔, 嶋紘平, 秩父重英

    第16回ナノ構造エピタキシャル成長講演会 2024/05/31

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    (Fr-T01), チュートリアル講演

  38. Technology development for long life and high efficiency DUV LEDs International-presentation Invited

    Y. Saito, A. Miyazaki, S. Boyama, K. Okuno, M. Oya, K. Kataoka, T. Narita, K, Horibuchi, M. Kushimoto, Y. Honda, H. Amano, H. Ishiguro, T. Takeuchi, K. Shima, d, S. F. Chichibu

    The 10th International Conference on Light-Emitting Devices and Their Industrial Applications (LEDIA 2024) 2024/04/24

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    No.LEDIA1-03 (Invited-oral)

  39. Short-term degradation mechanisms of 275-nm-band AlGaN quantum well deep- ultraviolet light emitting diodes fabricated on a sapphire substrate International-presentation Invited

    S. F. Chichibu, K. Okuno, M. Oya, Y. Saito, H. Ishiguro, T. Takeuchi, and K, Shima

    The 10th International Conference on Light-Emitting Devices and Their Industrial Applications (LEDIA 2024) 2024/04/24

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    No.LEDIA1-02 (Invited-oral)

  40. 275 nm帯AlGaN量子井戸LEDの初期劣化機構(II)

    秩父重英, 嶋紘平, 奥野浩司, 大矢昌輝, 齋藤義樹, 本田善央, 天野浩, 石黒永孝, 竹内哲也

    2024年第71回応用物理学会春季学術講演会 2024/03/24

  41. BCl3/NH3を用いてサファイア基板上にCVD成長させたhBN薄膜および多形BNセグメントの 陰極線蛍光評価

    嶋紘平, 粕谷拓生, 髙屋竣大, 辻谷陽仁, 原和彦, 秩父重英

    2024年第71回応用物理学会春季学術講演会 2024/03/22

  42. GaN成長層・Mgイオン注入層の室温フォトルミネッセンス寿命 (III)

    秩父重英, 嶋紘平, 上殿明良, 石橋章司, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 渡邉浩崇, 田, 中敦之, 本田善央, 須田淳, 天野浩, 加地徹, 生田目俊秀, 色川芳宏, 小出康夫

    2024年第71回応用物理学会春季学術講演会 2024/03/22

  43. GaN成長層・Mgイオン注入層の室温フォトルミネッセンス寿命 (II)

    秩父重英, 嶋紘平, 上殿明良, 石橋章司, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 渡邉浩崇, 田, 中敦之, 本田善央, 須田淳, 天野浩, 加地徹, 生田目俊秀, 色川芳宏, 小出康夫

    2024年第71回応用物理学会春季学術講演会 2024/03/22

  44. 低圧酸性アモノサーマル成長GaNのミッドギャップ再結合過程

    嶋紘平, 上殿明良, 石橋章司, 石黒徹, 秩父重英

    2024年第71回応用物理学会春季学術講演会 2024/03/22

  45. Operation-induced short-term degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light-emitting diodes on a sapphire substrate International-presentation Invited

    S. F. Chichibu, K. Okuno, M. Oya, Y. Saito, H. Ishiguro, T. Takeuchi, and K, Shima

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2024, OPTO, Light-Emitting Devices, Materials, and Applications XXVIII (OE603) 2024/01/30

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    No.12906-25 (Invited-oral)

  46. Low-pressure acidic ammonothermal growth of bulk GaN crystals International-presentation Invited

    S. F. Chichibu, K. Kurimoto, Q. Bao, Y. Mikawa, M. Saito, D. Tomida, T. Ishiguro, K. Shima

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2024, OPTO, Gallium Nitride Materials and Devices XIX (OE107) 2024/01/29

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    No.12886-1 (Invited-oral)

  47. Operation-induced short-term degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light-emitting diodes fabricated on a sapphire substrate International-presentation Invited

    S. F. Chichibu, K. Okuno, M. Oya, Y. Saito, H. Ishiguro, T. Takeuchi, and K, Shima

    49th Conference on the Physics and Chemistry of Semiconductor Interfaces (PCSI- 49) 2024/01/18

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    Session PCSI-ThM1 Wide Bandgap Materials, No.PCSI-ThM1-9 (Invited-oral&poster).

  48. Polishing and etching damages of hydrothermally grown ZnO single crystals studied using time-resolved photoluminescence spectroscopy International-presentation

    K. Shima, T. Kasuya, S. F. Chichibu

    Advanced Materials Research Grand Meeting and IUMRS-ICA2023 2023/12/14

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    Session Synthesis, Processing and Characterization of Nanoscale and Functional Oxide Films -7th E-MRS & MRS-J Bilateral Symposium, No.D1-O402-06 (oral)

  49. Short-term degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light emitting diodes on a sapphire substrate International-presentation

    S. F. Chichibu, K. Nagata, K. Okuno, M. Oya, Y. Saito, H. Ishiguro, T. Takeuchi, K. Shima

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/17

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    No.OD13-3 (oral)

  50. Optical characteristics of BGaN films using oblique polishing International-presentation

    R. Ozeki, D. Nakamura, R. Kudo, T. Ito, K. Shima, S. F. Chichibu, T. Nakano

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/16

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    No.ThP-GR-16 (poster)

  51. Spatially resolved cathodoluminescence studies of graphitic BN segments formed in hexagonal BN epilayers grown on a (0001) sapphire by CVD International-presentation

    S. F. Chichibu, N. Umehara, K. Hara, K. Shima

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/16

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    No.CH12-3 (oral)

  52. Effect on QWs qualities of thickness of homoepitaxial AlN on AlN/sapphire prepared by sputtering and high-temperature annealing International-presentation

    R. Akaike, K. Uesugi, K. Shima, S. F. Chichibu, A. Uedono, H. Miyake

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/15

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    No.CH9-2 (oral)

  53. Luminescence studies of Mg-implanted and undoped GaN-on-GaN structures processed by ultra-high-pressure annealing International-presentation

    K. Shima, T. Narita, K. Kataoka, S. Ishibashi, A. Uedono, M. Bockowski, J. Suda, T. Kachi, S. F. Chichibu

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/14

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    No.CH6-3 (oral)

  54. Wafer-scale characterization of mosaics and the impact on point defects in GaN studied using 2D birefringence and photoluminescence measurements International-presentation

    K. Shima, S. F. Chichibu

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/14

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    No.CH5-4 (oral)

  55. Recent developments for high efficiency for deep UV LEDs International-presentation Invited

    Y. Saito, K. Nagata, A. Miyazaki, S. Boyama, K. Okuno, M. Oya, K. Kataoka, T, Narita, K. Horibuchi, M. Kushimoto, Y. Honda, H. Amano, H. Ishiguro, T. Takeuchi, K. Shima, S. F. Chichibu

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/17

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    No.OD13-1 (Invited-oral)

  56. Impacts of vacancy clusters on the luminescence dynamics in Mg-implanted GaN on GaN structures International-presentation Invited

    S. F. Chichibu, A. Uedono, H. Iguchi, T. Narita, K. Kataoka, M. Bockowski, J, Suda, T. Kachi, S. Takashima, R. Tanaka, K. Ueno, M. Edo, S. Ishibashi, and K, Shima

    The 14th International Conference on Nitride Semiconductors (ICNS-14) 2023/11/14

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    No.CH6-1 (Invited-oral)

  57. Mgイオン注入GaN中の空孔型欠陥がルミネッセンス特性に与える影響の評価 Invited

    嶋紘平, 高島信也, 上野勝典, 江戸雅晴, 井口紘子, 成田哲生, 片岡恵太, 石橋章司, 上殿明良, 秩父重英

    応用物理学会九州支部特別講演会 2023/11/12

  58. Structural, electrical and optical properties of alpha-In2O3 grown by mist CVD on (0001) alpha-Al2O3 substrate International-presentation

    T. Yamaguchi, A. Taguchi, K. Shima, T. Nagata, T. Yamamoto, Y. Hayakawa, M, Matsuda, T. Konno, T. Onuma, S. F. Chichibu, H. Honda

    7th International Conference on Advanced Electromaterials (ICAE2023) 2023/11/02

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    Symposium 8: Material and Devices for Power Electronics, No. 8-2510 (oral)

  59. HVPE成長Mg添加p型GaNのフォトルミネッセンススペクトル

    秩父重英, 大西一生, 新田州吾, 本田善央, 天野浩, 嶋紘平

    2023年秋季応用物理学会 2023/09/22

  60. 二次元複屈折およびフォトルミネッセンス測定によるGaNウエハの結晶モゼイクと点欠 陥の評価

    嶋紘平, 秩父重英

    2023年秋季応用物理学会 2023/09/22

  61. 斜め研磨加工を用いたBGaN薄膜の光学特性評価

    小関凌也, 中村大輔, 工藤涼兵, 伊藤哲, 嶋紘平, 秩父重英, 中野貴之

    2023年秋季応用物理学会 2023/09/20

  62. 炭素フリー原料を用いてサファイア基板にCVD成長させたhBN薄膜に混在する多形BNの空 間分解カソードルミネッセンス評価

    秩父重英, 梅原直己, 原和彦, 嶋紘平

    2023年秋季応用物理学会 2023/09/20

  63. Luminescence studies of bulk GaN crystals grown by the low-pressure acidic ammonothermal method International-presentation

    K. Shima, K. Kurimoto, Q. Bao, Y. Mikawa, T. Ishiguro, S. F. Chichibu

    65th Electronic Materials Conference (EMC-65) 2023/06/29

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    Session Group III-Nitrides Growth and Characterization No.W06 (oral)

  64. Ultraviolet luminescence dynamics of hexagonal BN epilayers grown by chemical vapor deposition using carbon-free precursors International-presentation

    T. Kasuya, K. Shima, K. Hara, S. F. Chichibu

    65th Electronic Materials Conference (EMC-65) 2023/06/29

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    Session 2D Materials Synthesis and Characterizations, No.P07 (oral)

  65. Short-term degradation mechanisms of 275-nm-band AlGaN-based deep-ultraviolet light emitting diodes fabricated on a sapphire substrate International-presentation

    S. F. Chichibu, K. Shima, T. Kasuya, K. Nagata, K. Okuno, M. Oya, Y. Saito, H. Ishiguro, T. Takeuchi

    65th Electronic Materials Conference (EMC-65) 2023/06/28

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    Session Group III-Nitrides Optical Emitters, No.M01 (oral)

  66. 空孔複合体が(Al,Ga)Nの発光特性に与える影響 Invited

    秩父重英, 嶋紘平, 上殿明良

    第15回ナノ構造エピタキシャル成長講演会 2023/06/16

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    (Fr-T01), チュートリアル講演

  67. Temporary and spatially resolved luminescence studies of p-GaN segments fabricated by vacancy-guided redistribution of Mg using sequential ion implantation of Mg and N International-presentation

    K. Shima, R. Tanaka, S. Takashima, K. Ueno, M. Edo, A. Uedono, S. Ishibashi, and, S. F. Chichibu

    21st International Workshop on Junction Technology (IWJT2023) 2023/06/09

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    No.S3-1 (oral)

  68. 280 nm帯AlGaN量子井戸LEDの劣化機構に関する考察

    秩父重英, 嶋紘平, 粕谷拓生, 永田賢吾, 奥野浩司, 齋藤義樹, 石黒永孝, 竹内哲也

    2023年第70回応用物理学会春季学術講演会 2023/03/17

  69. 炭素フリー原料を用いてサファイア基板上にCVD成長させたhBN薄膜の発光ダイナミクス

    粕谷拓生, 嶋紘平, 原和彦, 秩父重英

    2023年第70回応用物理学会春季学術講演会 2023/03/17

  70. 陰極線励起による単層六方晶BNのバンド端発光の観測

    嶋紘平, T.S.Cheng, C.J.Mellor, P.H.Beton, C.Elias, B.Gil, G.Cassabois, S.V.Novikov, 秩父, 重英

    2023年第70回応用物理学会春季学術講演会 2023/03/17

  71. 赤色発光In0.35Ga0.65N/GaN量子井戸のフォトルミネッセンス寿命

    李リヤン,嶋紘平, 飯田大輔, 大川和宏, 秩父重英

    2023年第70回応用物理学会春季学術講演会 2023/03/16

  72. 反応性イオンエッチングを行ったZnO表面の時間分解フォトルミネッセンス及びX線光電 子分光評価

    粕谷拓生, 嶋紘平, 秩父重英

    2023年第70回応用物理学会春季学術講演会 2023/03/15

  73. Gbps-Class Solar-Blind WDM Optical Wireless Communication By (264, 274, 282)-nm Deep-UV LEDs and CsTe Photomultiplier Tube International-presentation

    Y. Yoshida, K. Kojima, M. Shiraiwa, A. Kanno, A. Hirano, Y. Nagasawa, M, Ippommatsu, N. Yamamoto, S. F. Chichibu, Y. Awaji

    Optical Fiber Communication Conference and Exposition (OFC2023) 2023/03/09

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    No.Th1H.2 (oral)

  74. High-speed solar-blind optical wireless communications based on AlGaN deep- ultraviolet light-emitting diodes grown on AlN/sapphire templates with dense macro-steps International-presentation Invited

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, A. Hirano, Y. Nagasawa, M. Ippommatsu, S. F. Chichibu

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2023, OPTO, Gallium Nitride Materials and Devices XVIII (OE107) 2023/02/02

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    No.12421-56 (Invited-oral)

  75. Impacts of vacancy clusters on the recombination dynamics in Mg-implanted GaN on GaN structures International-presentation Invited

    S. F. Chichibu, K. Shima, H. Iguchi, T. Narita, K. Kataoka, H. Sakurai, M, Bockowski, J. Suda, T. Kachi, S. Takashima, R. Tanaka, K. Ueno, M. Edo, S, Ishibashi, A. Uedono

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2023, OPTO, Gallium Nitride Materials and Devices XVIII (OE107) 2023/01/31

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    No.12421-26 (Invited-oral)

  76. Annealing properties of vacancy-type defects in ion implanted GaN during ultra- high-pressure annealing studied by using a monoenergetic positron beam International-presentation Invited

    A. Uedono, H. Sakurai, J. Uzuhashi, T. Narita, K. Sierakowski, S. Ishibashi, S, F. Chichibu, M. Bockowski, J. Suda, T. Ohkubo, N. Ikarashi, K. Hono, and T, Kachi

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2023, OPTO, Gallium Nitride Materials and Devices XVIII (OE107) 2023/01/31

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    No.12421-25 (Invited-oral)

  77. 時間分解フォトルミネッセンス法によるZnOのプロセス誘起欠陥評価

    粕谷拓生, 嶋紘平, 秩父重英

    第5回結晶工学 x ISYSE合同研究会 2022/11/18

  78. Near-band-edge recombination in monolayer hBN epitaxial films studied using cathodoluminescence spectroscopy International-presentation

    K. Shima, C. Elias, T. S. Cheng, C. J. Mellor, P. H. Beton, S. V, Novikov, B, Gil, G. Cassabois, S. F. Chichibu

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/14

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    Session Novel Materials and Nanostructures, Processing of hBN No. AT232 (oral).

  79. Fabrication of BGaN neutron detectors and evaluation of the radiation detection characteristics International-presentation

    T. Nakano, Y. Ota, A. Miyazawa, H. Nakagawa, S. Kawasaki, Y. Ando, Y. Honda, H, Amano, K. Shima, S. F. Chichibu, Y. Inoue, T. Aoki

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/14

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    Session Novel Materials and Nanostructures, Processing of hBN No. AT231 (oral).

  80. Low-pressure acidic ammonothermal (LPAAT) growth of 2-inch-diameter bulk GaN crystals International-presentation

    K. Kurimoto, Q. Bao, Y. Mikawa, K. Shima, T. Ishiguro, S. F. Chichibu

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/12

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    Session Growth, GaN Bulk Growth, No. AT167 (oral).

  81. Temperature field and fluid flow in ammonothermal growth of GaN during etch- back and crystal growth for a retrograde solubility configuration International-presentation

    S. Schimmel, D. Tomida, T. Ishiguro, Y. Honda, S. F. Chichibu, H. Amano

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/11

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    Session Growth, No. PP272 (poster).

  82. Self-formed compositional superlattices in m-plane Al0.7In0.3N alloys on a GaN substrate triggered by atomic ordering of In and Al along the c-axis International-presentation

    S. F. Chichibu, K. Shima, K. Kojima, Y. Kangawa

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/11

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    Session Novel Materials and Nanostructures, No. PP170 (poster) .

  83. Improved minority carrier lifetime in p-type GaN segments prepared by vacancy- guided redistribution of Mg International-presentation

    K. Shima, R. Tanaka, S. Takashima, K. Ueno, M. Edo, K. Kojima, A. Uedono, S, Ishibashi, S. F. Chichibu

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/11

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    Session Electronic devices, Ion implantation and annealing, No. AT049 (oral).

  84. Emission dynamics of indirect excitons in hexagonal BN epilayers containing polytypic segments grown by chemical vapor deposition using carbon-free precursors International-presentation Invited

    S. F. Chichibu, K. Shima, N. Umehara, K. Takiguchi, Y. Ishitani, K. Hara

    11th International Workshop on Nitride Semiconductors (IWN2022) 2022/10/11

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    Session Novel Materials and Nanostructures, Excitons in hexagonal and cubic GaN, No. IT26 (Invited-oral).

  85. n型GaN基板・エピタキシャル薄膜の室温フォトルミネッセンス寿命

    秩父重英, 嶋紘平, 小島一信, 上殿明良, 石橋章司, 渡邉浩崇, 田中敦之, 本田善央, 今西正幸, 森勇介, 生田目俊秀, 色川芳宏, 天野 浩, 小出康夫

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/23

  86. 超高圧アニールによるMgイオン注入p型GaNのルミネッセンス評価

    嶋紘平, 櫻井秀樹, 石橋章司, 上殿明良, Michal Bockowski, 須田淳, 加地徹, 秩父重英

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/22

  87. 炭素フリー原料を用いてサファイア基板にCVD成長させた多型を含むhBN薄膜における間 接遷移励起子の発光ダイナミクス

    秩父重英, 嶋紘平, 菊地清, 梅原直己, 瀧口佳祐, 石谷善博, 原和彦

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/21

  88. 時間分解フォトルミネッセンスによるZnOのプロセス誘起欠陥評価

    粕谷拓生, 嶋紘平, 秩父重英

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/21

  89. GaNに格子整合するc面AlInN薄膜の室温フォトルミネッセンス寿命

    李リヤン,嶋紘平, 山中瑞樹, 江川孝志, 竹内哲也, 三好実人, 石橋章司, 上殿明良, 秩父重英

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/20

  90. 低圧酸性アモノサーマル成長バルクGaN結晶のルミネッセンス評価(2)

    嶋紘平, 栗本浩平, 包全喜, 三川豊, 石黒徹, 秩父重英

    2022年 第83回 応用物理学会 秋季学術講演会 2022/09/20

  91. In situ monitoring technologies as prospective validation tools for numerical simulations of ammonothermal crystal growth

    S. Schimmel, M. Salamon, D. Tomida, I. Kobelt, L. Heinlein, A.-C. L, Kimmel, T, G. Steigerwald, T. Ishiguro, Y. Honda, S. F. Chichibu, H. Amano, E. Schluecker, P. Wellmann

    7th European Conference on Crystal Growth (ECCG-7) 2022/07/26

  92. Mechanism underlying high internal quantum efficiency of AlGaN-based LEDs fabricated on AlN with dense macrosteps International-presentation

    Akira Hirano, Yosuke Nagasawa, Kazunobu Kojima, Masamichi Ippommatsu, Hideki Sako, Ai Hashimoto, Ryuichi Sugie, Yoshio Honda, Hiroshi Amano, Shigefusa F.Chichibu

    The 20th International Conference on Metal Organic Vapor Phase Epitaxy (ICMOVPE- 20) 2022/07/10

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    No.Tu A3.4; LN375

  93. Impacts of vacancy clusters on the recombination dynamics in Mg-implanted GaN on GaN structures for power devices International-presentation Invited

    S. F. Chichibu, K. Shima, K. Kojima, S. Takashima, R. Tanaka, K. Ueno, M. Edo, H, Iguchi, T. Narita, K. Kataoka, S. Ishibashi, A. Uedono

    Compound Semiconductor Week (CSW) 2022 2022/06/01

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    Session: Power Elecronics I, No.5:00-5:30PM (Invited-oral)

  94. Observation of room-temperature cavity-polaritons in ZnO microcavities fabricated by a top-down process International-presentation

    K. Shima, K. Furusawa, S. F. Chichibu

    European Materials Research Society, 2022 Spring Meeting, Symposium N: Synthesis, processing and characterization of nanoscale multi functional oxide films VIII and 6th E-MRS & MRS-J bilateral symposium 2022/06/03

  95. High energy computed tomography as a tool for validation of numerical simulations of ammonothermal crystal growth of GaN International-presentation International-coauthorship

    S. Schimmel, M. Salamon, D. Tomida, M. Saito, Q. Bao, T. Ishiguro, Y. Honda, S, F. Chichibu, H. Amano

    8th International Workshop on Crystal Growth Technology (IWCGT-8), Berlin 2022/05/30

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    No.P13 (poster)

  96. Characterization of semiconductor crystals based on omnidirectional photoluminescence (ODPL) spectroscopy International-presentation Invited

    K. Kojima, S. Ichikawa, O. Maida, K. Shima, S. F. Chichibu

    241st Meeting of ECS, The Electrochemical Society, Vancouver Convention Center 2022/05/31

  97. Reduction of polishing-induced surface recombination centers of ZnO single crystals grown by the hydrothermal method International-presentation

    T. Kasuya, K. Shima, S. F. Chichibu

    5th International Workshop on UV Materials and Devices (IWUMD-V) 2022/05/26

  98. Luminescence studies of nearly lattice-matched c-plane AlInN/GaN heterostructures International-presentation International-coauthorship

    L. Li, K. Shima, M. Yamanaka, T. Egawa, T. Takeuchi, M. Miyoshi, S. F, Chichibu

    5th International Workshop on UV Materials and Devices (IWUMD-V) 2022/05/26

  99. 時間分解PL測定による岩塩構造MgZnOの発光特性の評価

    高坂亘, 小川広太郎, 日下皓也, 金子健太郎, 山口智広, 嶋紘平, 藤田静雄, 本田徹, 秩父重英, 尾沼猛儀

    2022年春季応用物理学会 2022/03/26

  100. エピタキシャル成長及びイオン注入により作製されたGaN基板上Mg添加 p型GaNの室温フ ォトルミネッセンス寿命(第43回応用物理学会優秀論文賞 JJAP論文賞受 賞記念講演) International-presentation Invited

    秩父重英, 嶋紘平, 小島 一信, 高島信也, 上野勝典, 江戸雅晴, 井口紘子, 成田哲生, 片岡恵太, 石橋章司, 上殿明良

    2022年春季応用物理学会 2022/03/23

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    (23p-E302-1) [第43回応用物理学会優秀論文賞 JJAP論文賞受 賞記念講演]

  101. Vacancy complexes acting as midgap recombination centers in (Al,Ga)N semiconductors International-presentation Invited

    S. F. Chichibu, K, Shima, S. Ishibashi, A. Uedono

    Advances in III-Nitride Materials & Photonic Devices (IIIN-MPD) 2022/03/09

  102. 低圧酸性アモノサーマル法によるGaN単結晶製造技術の開発 Invited

    栗本浩平, 包全喜, 三川豊, 嶋紘平, 石黒徹, 秩父重英

    日本学術振興会 産業イノベーションのための結晶成長 第R032委員会キックオフ研究会(オンライン開催) 2022/03/04

  103. High-speed solar-blind optical wireless communication enabled by DUV LED International-presentation Invited

    Y. Yoshida, K. Kojima, M. Shiraiwa, A. Kanno, A. Hirano, Y. Nagasawa, M, Ippommatsu, N. Yamamoto, S. F. Chichibu, Y. Awaji

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West on Demand 2022, OPTO, Light-Emitting Devices, Materials, and Applications XXVI (OE603) 2022/02/21

  104. Room-temperature cavity-polaritons in planar ZnO microcavities fabricated by a top-down process International-presentation Invited

    K. Shima, K. Furusawa, S. F. Chichibu

    The 3rd International Workshop on Materials Science and Advanced Electronics Created by Singularity (IWSingularity 2022) & The 2nd International Symposium on Wide Gap Semiconductor Growth, Process and Device Simulation (ISWGPDs 2022) 2022/01/13

  105. ミストCVD法により成長したRS-MgZnOにおける深紫外PL寿命の評価

    高坂亘, 工藤幹太, 石井恭平, 小野瑞生, 金子健太郎, 山口智広, 嶋紘平, 小島一信, 藤田静雄, 本田徹, 秩父重英, 尾沼猛儀

    第21回東北大学多元物質科学研究所研究発表会 2021/12/09

  106. BGaNダイオードによる中性子半導体検出器の開発

    中野貴之, 宮澤篤也, 井上翼, 青木徹, 嶋紘平, 秩父重英

    第21回東北大学多元物質科学研究所研究発表会 2021/12/09

  107. c面Al0.83In0.17N/GaN格子整合ヘテロ構造の光学特性評価 International-coauthorship

    李リヤン, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 上殿明良, 石橋章司, 竹内哲也, 三好実人, 秩父重英

    電子情報通信学会レーザ・量子エレクトロニクス(LQE)研究会 2021/11/25

  108. 全方位フォトルミネセンス(ODPL)法を用いた窒化ガリウム結晶の品質評価

    小島一信, 嶋紘平, 秩父重英

    応用物理学会 先進パワー半導体分科会 第21回研究会「ワイドバンドギャップ半導体の点欠陥の評価・制御・デバイス応用」 2021/11/17

  109. Impact of growth pressure on the neutron-detection efficiency of BGaN diodes International-presentation

    A. Miyazawa, Y. Ohta, S. Matsukawa, K. Hayashi, H. Nakagawa, S. Kawasaki, Y. Ando, G. Wakabayashi, Y. Honda, H. Amano, K. Shima, K. Kojima, S. F. Chichibu, Y. Inoue, T. Aoki, T. Nakano

    2021 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2021 IEEE NSD MIC) 2021/10/21

  110. 高品質GaNシードを用いた低圧酸性アモノサーマル(LPAAT)法によるGaN単結晶成長 International-coauthorship

    栗本浩平, 包全喜, 三川豊, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    2021/09/12

  111. 空孔ガイドMg拡散法によるp型イオン注入GaNの空間分解CL評価

    嶋紘平, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 小島一信, 上殿明良, 秩父重英

    第82回応用物理学会秋季学術講演会 2021/09/11

  112. 陽電子消滅を用いたMgイオン注入により形成したp型GaNのMg活性プロセスと空孔型欠陥の研究

    上殿明良, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 嶋紘平, 小島一信, 秩父重英, 石橋章司

    第82回応用物理学会秋季学術講演会 2021/09/11

  113. 混合鉱化剤を用いた低圧酸性アモノサーマル法によるGaN結晶育成 International-coauthorship

    冨田 大輔, Saskia Schimmel, 斉藤 真, 包 全喜, 石黒 徹, 本田 善央, 秩父 重英, 天野 浩

    第82回応用物理学会秋季学術講演会 2021/09/12

  114. 炭素フリー原料を用いてサファイア基板に気相成長させたh-BN薄膜の空間分解カソードルミネッセンス評価

    秩父重英, 嶋紘平, 梅原直己, 小島一信, 原和彦

    第82回応用物理学会秋季学術講演会 2021/09/10

  115. Vacancy complexes acting as midgap recombination centers in (Al,Ga)N semiconductors International-presentation Invited

    S. F. Chichibu, K. Shima, K. Kojima, S. Ishibashi, A. Uedono

    20th International Workshop on Junction Technology (IWJT2021) 2021/06/11

    More details Close

    No.KN-4, On-line Conference (Plenary)

  116. 酸性アモノサーマル法による大口径高品質GaN結晶成長 Invited

    三川豊, 石鍋隆幸, 鏡谷勇二, 包全喜, 栗本浩平, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    ワイドギャップ半導体学会(WideG)第1回研究会「WBG材料のバルク結晶成長とウェハ化技術」 2021/05/14

  117. Characterization of AlGaN deep-ultraviolet light-emitting diodes grown on AlN/ sapphire templates with dense macro-steps and application of high-speed solar- blind optical wireless communications International-presentation

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, A. Hirano, Y. Nagasawa, Y. Honda, H. Amano, S. F. Chichibu

    2nd International Conference on UV LED Technologies & Applications (ICULTA2020), Mo-A3-1 2021/04/19

  118. 室温動作ポラリトンレーザの実現に向けたZnO微小共振器の形成 Invited

    秩父重英, 嶋紘平, 小島一信, 古澤健太郎

    第4回固体レーザーの高速探索と機能開発に向けたレーザー材料研究会-新しい機能を持ったレーザとそれに関連した材料- 2021/03/22

  119. Simulation of the global thermal field in a setup for ammonothermal growth of GaN

    2021/03/17

  120. トップダウンプロセスで作製したZnO微小共振器中の共振器ポラリトンの室温における観測

    嶋紘平, 古澤健太郎, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/19

  121. AlN単結晶上にHVPE成長させたSi添加AlN基板の発光特性

    秩父重英, 嶋紘平, 小島一信, Moody Baxte, 三田清二, Collazo Ramon, Sitar Zlatko, 熊谷義直, 上殿明良

    2021年第68回応用物理学会春季学術講演会 2021/03/19

  122. 陽電子消滅によるスパッタ堆積AlN薄膜中の空孔型欠陥検出

    上殿明良, 正直花奈子, 上杉謙次郎, 秩父重英, 石橋章司, Dickmann M, Egger W, Hugenschmidt C, 三宅秀人

    2021年第68回応用物理学会春季学術講演会 2021/03/19

  123. 全方位フォトルミネセンス(ODPL)分光法による半導体結晶の発光量子効率測定 Invited

    小島一信, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/19

  124. BGaN 中性子検出器における結晶品質およびデバイス構造が検出特性に与える影響(2)

    宮澤篤也, 太田悠斗, 松川真也, 林幸佑, 中川央也, 川崎晟也, 安藤悠人, 本田善央, 天野浩, 嶋紘平, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2021年第68回応用物理学会春季学術講演会 2021/03/18

  125. Mgイオン注入後の空孔ガイド拡散法により形成したp型GaNのルミネッセンス評価

    嶋紘平, 田中亮, 高島信也, 上野勝典, 江戸雅晴, 小島一信, 上殿明良, 秩父重英

    第68回応用物理学会春季学術講演会 2021/03/18

  126. 低圧酸性アモノサーマル成長バルクGaN結晶のルミネッセンス評価

    嶋紘平, 栗本浩平, 包全喜, 三川豊, 小島一信, 石黒徹, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/17

  127. 格子整合系c面AlInN/GaNヘテロ構造のルミネッセンス評価

    李リヤン, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/17

  128. InGaN/GaN多重量子殻の時間空間分解カソードルミネッセンス評価

    嶋紘平, Weifang Lu, 小島一信, 上山智, 竹内哲也, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/17

  129. マクロステップを有するAlGaNに形成される離散的AlNモル分率(3)

    長澤陽祐, 小島一信, 平野光, 迫秀樹, 橋本愛, 杉江隆一, 一本松正道, 本田善央, 天野浩, 赤﨑勇, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/16

  130. マクロステップを有するAlGaNに形成される離散的AlNモル分率(2)

    長澤陽祐, 平野光, 一本松正道, 迫秀樹, 橋本愛, 杉江隆一, 本田善央, 天野 浩, 赤﨑勇, 小島一信, 秩父重英

    2021年第68回応用物理学会春季学術講演会 2021/03/16

  131. マクロステップを有するAlGaNに形成される離散的AlNモル分率(1)

    平野光, 長澤陽祐, 一本松正道, 迫秀樹, 橋本愛, 杉江隆一, 本田善央, 天野浩, 赤崎勇, 小島一信, 秩父重英

    2021年応用物理学会春季学術講演会 2021/03/16

  132. 深紫外AlGaN LEDを用いたギガビット級ソーラーブラインド光無線通信 Invited

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    電子情報通信学会総合大会 光エレクトロニクス(OPE)セッション 2021/03/09

  133. Current progress of omnidirectional photoluminescence spectroscopy for the quantification of quantum efficiency of radiation in GaN crystals International-presentation Invited

    K. Kojima, K. Ikemura, S. F. Chichibu

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2021, OPTO, Gallium Nitride Materials and Devices XV (OE107) 2021/03/06

  134. Behaviors of vacancy-type defects in Mg-implanted GaN during ultra-high- pressure annealing studied by using a monoenergetic positron beam International-presentation Invited

    A. Uedono, H. Sakurai, T. Narita, K. Sierakowski, M. Bockowski, J. Suda, S, Ishibashi, S. F. Chichibu, T. Kachi

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2021, OPTO, Gallium Nitride Materials and Devices XV (OE107) 2021/03/06

  135. (Al,Ga,In)Nの輻射・非輻射再結合過程に点欠陥が及ぼす影響 Invited

    秩父重英

    日本学術振興会 ワイドギャップ半導体光・電子デバイス第162委員会 第121回研究会(第五期総括記念研究会) 2021/03/05

  136. Vacancies in AlN deposited by radio-frequency sputtering and MOVPE studied by positron annihilation spectroscopy International-presentation

    A. Uedono, K. Shojiki, K. Uesugi, S. F. Chichibu, S. Ishibash, M. Dickmann, W. Egger, C. Hugenschmidt, H. Miyake

    The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT2021) 2021/03/01

  137. Evaluation of realistic boundary conditions for simulations of ammonothermal GaN crystal growth International-presentation

    S. Schimmel, D. Tomida, M. Saito, Q. Bao, T. Ishiguro, Y. Honda, S. F, Chichibu, H. Amano

    The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT2021) 2021/03/01

  138. Macroscopically homogeneous cathodoluminescence mapping images of c-plane nearly lattice-matched Al1-xInxN films on a GaN substrate International-presentation

    L. Y. Li, K. Shima, M. Yamanaka, K. Kojima, T. Egawa, T. Takeuchi, M. Miyoshi, S. F. Chichibu

    The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT2021) 2021/03/01

  139. Cathodoluminescence studies of AlN epilayers grown by MOVPE on sputtered AlN templates annealed at high temperature International-presentation

    K. Shima, T. Kasuya, K. Shojiki, K. Uesugi, K. Kojima, A. Uedono, H. Miyake, S. F. Chichibu

    The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT2021) 2021/03/01

  140. Omnidirectional photoluminescence (ODPL) spectroscopy for the quantification of Invited

    K. Kojima, S. F. Chichibu

    Virtual Workshop on Materials Science and Advanced Electronics Created by 2021/02/02

  141. Self-formed compositional superlattices triggered by cation orderings in m-plane Al1-xInxN on GaN Invited

    S. F. Chichibu, K. Shima, K. Kojima, Y. Kangawa

    Virtual Workshop on Materials Science and Advanced Electronics Created by Singularity 2021/02/03

  142. 室温で共振器ポラリトンを呈する酸化亜鉛微小共振器の実現

    嶋紘平, 古澤健太郎, 秩父重英

    第20回東北大学多元物質科学研究所研究発表会 2020/12/03

  143. 時間空間分解カソードルミネッセンス法によるワイドバンドギャップ窒化物半導体の評価 Invited

    秩父重英

    日本学術振興会放射線科学とその応用第186委員会第36回研究会 2020/12/04

  144. AlNおよび高AlNモル分率AlGaN混晶におけるAl空孔複合体の役割

    秩父重英, 嶋紘平, 小島一信, 三宅秀人, 上殿明良

    応用物理学会結晶工学分科会,応用電子物性分科会との連携研究例会「紫外材料・デバイス開発の最前線」 2020/11/19

  145. AlGaN-LEDとBeyond 5G

    吉田悠来, 小島一信, 白岩雅輝, 菅野敦史, 平野光, 長澤陽祐, 一本松正道, 山本直克, 秩父重英, 淡路祥成

    応用物理学会応用電子物性分科会,結晶工学分科会との連携研究例会「紫外材料・デバイス開発の最前線」 2020/11/18

  146. 陽電子消滅法によるMgイオン注入GaNの空孔型欠陥の焼鈍特性及び欠陥によるキャリア捕獲の研究

    上殿明良, 高島信也, 江戸雅晴, 上野勝典, 松山秀昭, Marcel Dickmann, Werner Egger, Christoph Hugenschmidt, 嶋紘平, 小島一信, 秩父重英, 石橋章司

    応用物理学会先進パワー半導体分科会, 第7回個別討論会 2020/11/16

  147. 陽電子消滅法によるMgイオン注入GaNの空孔型欠陥の焼鈍特性及び欠陥によるキャリア捕獲の研究 Invited

    上殿明良, 高島信也, 江戸雅晴, 上野勝典, 松山秀昭, Marcel Dickmann, Werner Egger, Christoph Hugenschmidt, 嶋紘平, 小島一信, 秩父重英, 石橋章司

    応用物理学会先進パワー半導体分科会, 第7回個別討論会 2020/11/11

  148. 陽電子を用いた超高圧焼鈍によるイオン注入GaNの欠陥回復特性の研究 Invited

    上殿明良, 櫻井秀樹, 成田哲生, Sierakowski Kacper, Bockowski Michal, 須田淳, 石橋章司, 嶋紘平, 秩父重英, 加地徹

    第49回結晶成長国内会議(JCCG-49), シンポジウム「窒化物半導体における不純物制御」 2020/11/09

  149. 全方位フォトルミネセンス計測:新しい評価技術 Invited

    小島一信, 秩父重英

    日本学術振興会光電相互変換第125委員会第250回記念研究会「新しい光電変換材料・評価法」 2020/09/18

  150. 全方位フォトルミネッセンス(ODPL)分光法によるGaNウエハの発光量子効率マッピング評価

    池村賢一郎, 小島一信, 秩父重英, 堀切文正

    2020年秋季応用物理学会 2020/09/10

  151. 高温アニールスパッタAlN上にMOVPE成長させたAlNの陰極線蛍光評価(1)

    嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    2020年秋季応用物理学会 2020/09/10

  152. 全方位フォトルミネセンス分光にて観測される双峰性スペクトルの起源

    小島一信, 秩父重英

    2020年秋季応用物理学会 2020/09/10

  153. 低圧酸性アモノサーマル法によるGaN結晶育成の初期成長制御

    冨田大輔, Saskia Schimmel, 斉藤真, 包全喜, 栗本浩平, 石黒徹, 秩父重英, 本田善央, 天野浩

    2020年秋季応用物理学会 2020/09/10

  154. GaN結晶の輻射量子効率と炭素不純物濃度の相関

    小島一信, 堀切 文正, 成田 好伸, 吉田丈洋, 藤倉序章, 秩父重英

    2020年秋季応用物理学会 2020/09/11

  155. 高温アニールスパッタAlN上にMOVPE成長させたAlNの陰極線蛍光評価(2)

    粕谷拓生, 嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    2020年秋季応用物理学会 2020/09/10

  156. GaNに格子整合するc面AlInN薄膜の空間分解カソードルミネッセンス

    李リヤン, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英

    2020年秋季応用物理学会 2020/09/10

  157. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(4)

    秩父重英, 嶋紘平, 稲富悠也, 小島一信, 寒川義裕

    2020年秋季応用物理学会 2020/09/10

  158. 4インチ対応オートクレーブを用いた低圧酸性アモノサーマル(LPAAT)法によるバルクGaN結晶成長

    栗本浩平, 包全喜, 三川豊, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    2020年秋季応用物理学会 2020/09/10

  159. 岩塩構造MgZnO薄膜における深紫外PL寿命の評価

    工藤幹太, 石井恭平, 小野瑞生, 金子健太郎, 山口智広, 嶋紘平, 小島一信, 藤田静雄, 本田徹, 秩父重英, 尾沼猛儀

    2020年秋季応用物理学会 2020/09/09

  160. スパッタAlN上にMOVPE成長させたAlN薄膜のカソードルミネッセンス評価

    粕谷拓生, 嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会,「第12回ナノ構造・エピタキシャル成長講演会」 2020/07/31

  161. c面エピタキシャルAl0.82In0.18N/GaN構造の空間分解カソードルミネッセンス

    李リヤン, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会,「第12回ナノ構造・エピタキシャル成長講演会」 2020/07/31

  162. Characterization of a self-organized deep-ultraviolet micro-light-emitting diode structure for high-speed solar-blind optical wireless communications

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, A. Hirano, Y. Nagasawa, M. Ippommatsu, S. F. Chichibu

    Conference on Lasers and Electro-Optics (CLEO) 2020, Laser Science to Photonic Applications, Session Free-Space & Underwater Communication 2020/05/10

  163. 深紫外AlGaN発光ダイオードとマルチピクセルフォトンカウンタを用いたソーラーブラインド帯モバイル光無線通信

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  164. PVT成長AlN上にHVPE成長させたSi添加AlN基板の陰極線蛍光評価

    秩父重英, 嶋紘平, 小島一信, Baxter Moody, 三田清二, Ramon Collazo, Zlatko Sitar, 熊谷義直, 上殿明良

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  165. 高温アニールしたスパッタAlN上に成長させたAlNの陰極線蛍光評価(2)

    中須大蔵, 嶋紘平, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  166. 高温アニールしたスパッタAlN上に成長させたAlNの陰極線蛍光評価(1)

    嶋紘平, 中須大蔵, 正直花奈子, 上杉謙次郎, 小島一信, 上殿明良, 三宅秀人, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  167. GaNに格子整合するc面AlInN薄膜の空間分解陰極線ルミネッセンス

    李リヤン, 嶋紘平, 山中瑞樹, 小島一信, 江川孝志, 竹内哲也, 三好実人, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  168. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(3)-断面CL-

    秩父重英, 嶋紘平, 小島一信

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  169. 4インチ成長用オートクレーブを用いた低圧酸性アモノサーマル法によるバルク GaN結晶成長

    栗本浩平, 包全喜, 斉藤真, 三川豊, 茅野林造, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  170. BGaN 中性子検出器における結晶品質およびデバイス構造が検出特性に与える影響

    太田悠斗, 高橋祐吏, 山田夏暉, 宮澤篤也, 中川央也, 川崎晟也, 本田善央, 天野浩, 嶋紘平, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  171. GaN結晶の輻射量子効率に対して炭素不純物および非輻射再結合中心が及ぼす影響

    小島一信, 堀切文正, 成田好伸, 吉田丈洋, 藤倉序章, 秩父重英

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  172. 岩塩構造MgZnO薄膜の時間分解フォトルミネッセンス分光

    工藤幹太, 石井恭平, 小野瑞生, 金子健太郎, 山口智広, 嶋紘平, 小島一信, 藤田静雄, 本田徹, 秩父重英, 尾沼 猛儀

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  173. フレキシブル基板上に作製したNiO/ZnO過視光透過型太陽電池の電気特性

    金冑男, 加藤匠秀, 濱田知弘, 秩父重英, 杉山睦

    2020年第67回応用物理学会春季学術講演会 2020/03/12

  174. Origin and dynamic properties of major intrinsic nonradiative recombination centers in wide bandgap nitride semiconductors Invited

    S. F. Chichibu, K. Shima, K. Kojima, S. Ishibashi, A. Uedono

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2020/02/04

  175. Control of vacancy-type defects in Mg implanted GaN studied by positron annihilation spectroscopy Invited

    A. Uedono, M. Dickmann, W. Egger, C. Hugenschmidt, S. Ishibashi, S.F.Chichibu

    2020/02/03

  176. 自己組織的に形成された深紫外マイクロ発光ダイオード構造の変調特性 Invited

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    レーザー学会学術講演会第40回年次大会 2020/01/22

  177. 深紫外AlGaN発光ダイオードを用いたギガビット級光無線通信 Invited

    片岡恵太, 成田哲生, 井口紘子, 嶋紘平, 小島一信, 秩父重英, 上殿明良

    日本学術振興会ワイドギャップ半導体光・電子デバイス第162委員会 第116回研究会 2019/12/14

  178. Characterization of planar ZnO microcavities for the near ultraviolet polariton laser operatable at room temperature International-presentation

    K. Shima, K. Furusawa, K. Kojima, S. F. Chichibu

    Materials Research Meeting 2019, Materials Innovation for Sustainable 2019/12/11

  179. Improvement of neutron detection efficiency for BGaN semiconductor detectors International-presentation

    T. Nakano, Y. Takahashi, Y. Ohta, N. Yamada, H. Nakagawa, Y. Honda, H. Amano, K. Shima, K. Kojima, S. F. Chichibu, Y. Inoue, T. Aoki

    2019 IEEE Nuclear Science Symposium and Medical Imaging Conference, and Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors (NSS/MIC/RTSD) 2019/10/29

  180. 深紫外AlGaN発光ダイオードを用いたギガビット級光無線通信 Invited

    吉田悠来, 小島一信, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 秩父重英, 平野光, 一本松正道

    日本学術振興会ワイドギャップ半導体光・電子デバイス第162委員会 第115回研究会 2019/10/25

  181. Origin and dynamic properties of intrinsic nonradiative recombination centers in bulk and epitaxial ZnO International-presentation

    S. F. Chichibu, K. Kojima, K. Koike, M. Yano, S. Gonda, S. Ishibashi, A. Uedono

    9th Asia-Pacific Workshop on Widegap Semiconductors (APWS2019) 2019/10/12

  182. Evaluation of BGaN growth temperature dependence and fabrication of neutron semiconductor detectors International-presentation

    Y. Takahashi, T. Maruyama, N. Yamada, K. Ebara, Y. Ohta, H. Nakagawa, S. Usami, Y. Honda, H. Amano, K. Kojima, S. F. Chichibu, Y. Inoue, T. Aoki, T. Nakano

    9th Asia-Pacific Workshop on Widegap Semiconductors (APWS2019) 2019/10/11

  183. 発光量子効率におけるフォトンリサイクル効果の理論解析

    浅井栄大, 小島一信, 秩父重英, 福田浩一

    2019年秋季応用物理学会 2019/09/21

  184. 酸性アモノサーマル法によるGaNバルク結晶成長

    栗本浩平, 包全喜, 斉藤真, 茅野林造, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    2019年秋季応用物理学会 2019/09/21

  185. ZnOの反応性イオンエッチングによる損傷とHClによる損傷回復

    中須大蔵, 嶋紘平, 小島 一信, 秩父重英

    2019年秋季応用物理学会 2019/09/21

  186. BGaN結晶成長におけるTMB流量依存性の検討および中性子検出デバイスの作製

    太田悠斗, 高橋祐吏, 丸山貴之, 山田夏暉, 中川央也, 川崎晟也, 宇佐美茂佳, 本田善央, 天野浩, 嶋紘平, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2019年秋季応用物理学会 2019/09/20

  187. ZnO微小共振器の作製と室温における共振器ポラリトン形成

    嶋紘平, 小島 一信, 秩父重英

    2019年秋季応用物理学会 2019/09/20

  188. 深紫外AlGaN発光ダイオードの顕微エレクトロルミネセンス測定

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    2019年秋季応用物理学会 2019/09/19

  189. 気相成長m面自立AlN基板およびホモエピタキシャル層の偏光特性と発光ダイナ ミクス

    秩父重英, 小島一信, 羽豆耕治, 石川陽一, 古澤健太郎, 三田清二, R.Collazo, Z.Sitar, 上殿明良

    2019年秋季応用物理学会 2019/09/19

  190. 多光子励起による窒化ガリウム結晶の時間分解フォトルミネセンス分光(2)

    小島一信, 谷川智之, 粕谷拓生, 片山竜二, 田中敦之, 本田善央, 天野浩, 秩父重英

    2019年秋季応用物理学会 2019/09/19

  191. 多光子励起による窒化ガリウム結晶の時間分解フォトルミネセンス分光(1)

    谷川智之, 小島一信, 粕谷拓生, 田中敦之, 本田善央, 秩父重英, 天野浩, 上向井正裕, 片山竜二

    2019年秋季応用物理学会 2019/09/19

  192. 温度可変全方位フォトルミネセンス分光装置の実現

    小島一信, 池村賢一郎, 中村明裕, 齋藤琢也, 秩父重英

    2019年春季応用物理学会 2019/09/19

  193. H2キャリアガスを用いたBGaN 結晶成長メカニズムの解析

    清水勇希, 江原一司, 新宅秀矢, 井上翼, 青木徹, 嶋紘平, 小島一信, 秩父重英, 中野貴之

    2019年秋季応用物理学会 2019/09/18

  194. Role of Al-vacancy complexes in AlN and high AlN mole fraction AlGaN alloys International-presentation Invited

    S. F. Chichibu, H. Miyake, A. Uedono

    4th International Workshop on UV Materials and Devices (IWUMD-IV) 2019/09/12

  195. "Fabrication of planar ZnO microcavities for near ultraviolet polariton laser operating at room temperature International-presentation

    K. Shima, K. Furusawa, K. Kojima, S. F. Chichibu

    4th International Workshop on UV Materials and Devices (IWUMD-IV) 2019/09/11

  196. Theoretical Analysis of Photo-Recycling Effect on External Quantum Efficiency Considering Spatial Carrier Dynamics International-presentation

    H. Asai, K. Kojima, S. F. Chichibu, K. Fukuda

    2019 International Conference on Solid State Devices and Materials 2019/09/02

  197. 全方位フォトルミネセンス(ODPL)法を用いた半導体結晶の光物性評価 Invited

    小島一信, 秩父重英

    ナノテスティング学会「第25回P&A解析研究会」 2019/09/02

  198. 窒化物半導体の時間空間分解カソードルミネッセンス評価 Invited

    秩父 重英

    応用物理学会薄膜・表面物理研究会 第47回薄膜・表面物理セミナー 「半導体GaNの基礎と 応用」 -パワーデバイス開発のための合成・分析・構造設計技術- 2019/07/26

  199. Impact of vacancy complexes on the nonradiative recombination processes in III-N devices International-presentation Invited

    S. F. Chichibu, K. Shima, K. Kojima, S. Ishibashi, A. Uedono

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/12

  200. Time-resolved luminescence studies of indirect excitons in h-BN epitaxial films grown by chemical vapor deposition using carbon-free precursors International-presentation

    S. F. Chichibu, N. Umehara, K. Takiguchi, K. Shima, K. Kojima, Y. Ishitani, K. Hara

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/10

  201. Dependences of external quantum efficiency of radiation and photoluminescence lifetime on the carbon concentration in GaN on GaN structures International-presentation

    K. Kojima, F. Horikiri, Y. Narita, T. Yoshida, S. F. Chichibu

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/10

  202. Photoluminescence studies of sequentially Mg and H ion-implanted GaN with various implantation depths and crystallographic planes International-presentation

    K. Shima, H. Iguchi, T. Narita, K. Kataoka, K. Kojima, A. Uedono, S. F. Chichibu

    he 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/10

  203. Effects of an extra Al metal added during the acidic ammonothermal growth of GaN crystals International-presentation

    D. Tomida, Q. Bao, M. Saito, K. Kurimoto, M. Ito, T. Ishiguro, S. F.Chichibu

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/08

  204. Microscopic nonuniformities in AlGaN-based 260 and 285 nm light-emitting multiple quantum wells grown on AlN templates with dense macrosteps analyzed by cathodoluminescence spectroscopy International-presentation

    Y. Nagasawa, R. Sugie, K. Kojima, A. Hirano, M. Ipponmatsu, Y. Honda, H. Amano, I. Akasaki, S. F. Chichibu

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/08

  205. Analytical formula for quantum efficiency of radiation considering self- absorption process International-presentation

    H. Asai, K. Kojima, S. F. Chichibu, K. Fukuda

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/07

  206. Evaluation of Subsequent Implantation Effect into Mg Implanted Region in GaN International-presentation

    S. Takashima, R. Tanaka, K. Ueno, H. Matsuyama, Y. Fukushima, M. Edo, K. Shima, K. Kojima, S. F. Chichibu, A. Uedono

    The 13th International Conference on Nitride Semiconductors (ICNS-13) 2019/07/07

  207. 時間空間分解カソードルミネッセンスによるワイドバンドギャップ半導体の所発光ダイ ナミクス評価 Invited

    秩父 重英

    日本表面真空学会 2019年6月研究例会「電子ビーム技術の新展開」 2019/06/25

  208. BGaN-MOVPE法におけるキャリアガスとホウ素原料の影響

    清水勇希, 江原一司, 新宅秀矢, 井上翼, 青木徹, 嶋紘平, 小島一信, 秩父重英, 中野貴之

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会, 「第11回窒化物半導体結晶成長講演会」 2019/06/13

  209. MOVPE法を用いた厚膜BGaN成長および縦型中性子検出デバイスの作製

    太田悠斗, 高橋祐吏, 丸山貴之, 山田夏暉, 中川央也, 川崎晟也, 宇佐美茂佳, 本田善央, 天野浩, 嶋紘平, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会, 「第11回窒化物半導体結晶成長講演会」 2019/06/13

  210. Improvement in the luminescence property of hexagonal boron nitride grown by CVD on a c-plane sapphire substrate International-presentation Invited

    K. Hara, N. Umehara, K. Shima, K. Kojima, S. F. Chichibu

    The 4th International Conference on Physics of 2D Crystals (ICP2C4) 2019/06/10

  211. Photoluminescence Studies of Sequentially Mg and H Ion-implanted GaN with Various Implantation Depths and Crystallographic Planes

    K. Shima, K. Kojima, A. Uedono, S. F. Chichibu

    19th International Workshop on Junction Technology (IWJT2019) 2019/06/06

  212. 酸性アモノサーマル法による大口径GaNバルク結晶作製技術の展望 Invited

    秩父重英, 斉藤真, 包全喜, 嶋紘平, 冨田大輔, 小島一信, 石黒徹

    日本学術振興会先端ナノデバイス・材料テクノロジー第151委員会研究会 2019/05/31

  213. Quantification of external quantum efficiency for near-band-edge emission of h-BN bulk crystals under photo-excitation International-presentation

    Kazunobu Kojima, Kenji Watanabe, Takashi Taniguchi, Shigefusa F. Chichibu

    Compound Semiconductor Week 2019 2019/05/20

  214. Quantification of external quantum efficiency for near-band-edge emission of freestanding h-BN crystals under photo-excitation International-presentation

    K. Kojima, K. Watanabe, T. Taniguchi, S. F. Chichibu

    Compound Semiconductor Week 2019 (CSW 2019), Spectroscopy & growth of h-BN II 2019/05/19

  215. An outdoor evaluation of 1-Gbps optical wireless communication using AlGaN- based LED in 280-nm Band International-presentation

    Y. Yoshida, K. Kojima, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, S. Chichibu, A. Hirano, M. Ippommatsu

    Conference on Lasers and Electro-Optics (CLEO) 2019, Laser Science to Photonic Applications, Session Free-Space & Underwater Communication 2019/05/05

  216. 薄膜固体二次電池の充放電解析

    津国和之, 殿川孝司, 小島一信, 秩父重英

    電気化学会第88回大会 2019/03/27

  217. Recent progress in acidic ammonothermal growth of GaN crystals International-presentation Invited

    S. F. Chichibu, M. Saito, Q. Bao, D. Tomida, K. Kurimoto, K. Shima, K.Kojima, T. Ishiguro

    11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPLasma2019) 2019/03/17

  218. 酸性アモノサーマル法によるGaN結晶育成に金属添加が与える影響

    冨田大輔, 包全喜, 斉藤真, 栗本浩平, 佐藤福馬, 石黒 徹, 秩父重英

    2019年春季応用物理学会 2019/03/09

  219. 容量測定を用いたp-GaNエピへの低濃度Mg注入と共注入影響の評価

    高島信也, 上野勝典, 田中亮, 松山秀昭, 江戸雅晴, 嶋紘平, 小島一信, 秩父重英, 上殿明良

    2019年春季応用物理学会 2019/03/09

  220. 中性子イメージングセンサーに向けたBGaN半導体検出器の開発

    高橋祐吏, 丸山貴之, 山田夏暉, 江原一司, 太田悠人, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2019年春季応用物理学会 2019/03/09

  221. 水熱合成単結晶ZnO基板の薄膜化プロセスと微小共振器構造への応用

    嶋紘平, 小島一信, 秩父重英

    2019年春季応用物理学会 2019/03/09

  222. 自己吸収過程を考慮した発光量子効率の解析式

    浅井栄大, 小島一信, 秩父重英, 福田浩一

    2019年春季応用物理学会 2019/03/09

  223. 自立窒化ガリウム結晶の角度分解フォトルミネセンス分光

    小島一信, 池村賢一郎, 秩父重英

    2019年春季応用物理学会 2019/03/09

  224. マクロステップを持つc面AlN/サファイアテンプレート上に成長させたAlGaN量 子井戸の構造解析(2)

    長澤陽祐, 小島一信, 平野光, 一本松正道, 本田善央, 天野浩, 赤崎勇, 秩父重英

    2019年春季応用物理学会 2019/03/09

  225. マクロステップを持つc面AlN/サファイアテンプレート上に成長させたAlGaN量 子井戸の構造解析(1)

    小島一信, 長澤陽祐, 平野光, 一本松正道, 本田善央, 天野浩, 赤崎勇, 秩父重英

    2019年春季応用物理学会 2019/03/09

  226. 深紫外AlGaN発光ダイオードの時間分解エレクトロルミネセンス分光

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 平野光, 長澤陽祐, 一本松正道, 秩父重英

    2019年春季応用物理学会 2019/03/09

  227. 注入深さ・極性面の異なるMgイオン注入GaNのフォトルミネッセンス

    秩父重英, 嶋紘平, 井口紘子, 成田哲生, 片岡恵太, 小島一信, 上殿明良

    2019年春季応用物理学会 2019/03/09

  228. 反応性ヘリコン波励起プラズマスパッタ法によるp型NiO薄膜の堆積

    嶋紘平, 小島一信, 秩父重英

    2019年春季応用物理学会 2019/03/09

  229. 窒化物半導体特異構造の時間空間分解カソードルミネッセンス評価 Invited

    秩父重英, 嶋紘平, 小島一信

    窒化物半導体特異構造の科学-ナノ物性評価技術の進展と物性制御 2019年春季応用物理学会シンポジウム 2019/03/09

  230. エピタキシャル成長およびイオン注入Mg添加GaN中の非輻射再結合中心 Invited

    秩父重英, 嶋紘平, 小島一信, 高島信也, 上野勝典, 江戸雅晴, 井口紘子, 成田哲生, 片岡恵太, 石橋章司, 上殿明良

    応用物理学会シリコンテクノロジー分科会 接合研究委員会 研究会 2019/02/28

  231. Helicon-wave-excited-plasma sputtering epitaxy of (001) anatase or (100) rutile TiO2 films on a (0001) GaN template for optoelectronic applications International-presentation Invited

    S. F. Chichibu

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2019, OPTO, Oxide-based Materials and Devices X, Session 5 Ultra Wide Bandgap Oxide Semiconductors: Progress in Thin Film Growth I 2019/02/02

  232. 酸性アモノサーマル法による大口径GaNバルク結晶作製技術の展望 Invited

    秩父重英, 斉藤真, 包全喜, 冨田大輔, 嶋紘平, 小島一信, 石黒徹

    日本学術振興会結晶加工と評価技術145委員会, パワーデバイス用シリコンおよび関連半導体に関する研究会(第6回) 2018/12/17

  233. GaN パワー半導体のエピ成長・プロセスで生じる点欠陥の理解と制御 Invited

    成田哲生, 冨田一義, 徳田豊, 小木曽達也, 嶋紘平, 井口紘子, 片岡恵太, 小島一信, 秩父重英, 上殿明良, 堀田昌宏, 五十嵐信行, 加地徹

    日本学術振興会結晶加工と評価技術145委員会, パワーデバイス用シリコンおよび関連半導体に関する研究会(第6回) 2018/12/17

  234. Different Nonradiative Recombination on Terraces and Macrosteps of Uneven QW for 285 nm LED Grown on AlN Template with Dense Macrosteps International-presentation

    Yosuke Nagasawa, Kazunobu Kojima, Ryuichi Sugie, Akira Hirano, Masamichi Ippommatsu, Hiroshi Amano, Isamu Akasaki, Shigefusa, F. Chichibu

    IWUMD 2018 2018/12/11

  235. Microscopic structure of boosting IQE for AlGaN-based UV-B (285 nm) LED grown on macrosteps International-presentation

    Y. Nagasawa, K. Kojima, A. Hirano, M. Ipponmatsu, Y. Honda, H. Amano, I.Akasaki, S.F.Chichibu

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  236. Luminescence dynamics of indirect excitons in h-BN epitaxial films grown by BCl3-NH3 chemical vapor deposition on a c-plane sapphire substrate International-presentation

    S. F. Chichibu, N. Umehara, K. Shima, K. Kojima, K. Hara

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  237. Kinetics analysis of desorption process in BGaN MOVPE International-presentation

    K. Ebara, K. Mochizuki, Y. Inoue, T. Aoki, K. Kojima, S. F. Chichibu, T.Nakano

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  238. Fabrication and evaluation of thick BGaN neutron detection diodes International-presentation

    T. Maruyama, Y. Takahashi, N. Yamada, K. Ebara, H. Nakagawa, S. Usami, Y.Honda, H. Amano, K. Kojima, S. F. Chichibu, Y. Inoue, T. Aoki, T. Nakano

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  239. Multi-gigabit-class deep ultraviolet wireless communication at 280 nm based on an AlGaN light emitting diode International-presentation

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, S.F.Chichibu

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  240. Room-temperature photoluminescence lifetime for the near-band-edge emission of epitaxial and ion-implanted Mg-doped GaN on GaN structures International-presentation

    S. F. Chichibu, K. Shima, K. Kojima, S. Takashima, K. Ueno, M. Edo, H.Iguchi, T. Narita, K. Kataoka, S. Ishibashi, A. Uedono

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  241. Current localization structure observed in AlGaN-based deep-ultraviolet light-emitting diodes grown on AlN templates with macrosteps International-presentation

    K. Kojima, Y. Nagasawa, A. Hirano, M. Ipponmatsu, Y. Honda, H. Amano, I.Akasaki, S.F.Chichibu

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  242. Recent progress of large size bulk GaN crystal growth by acidic ammonothermal method International-presentation

    M. Saito, Q. Bao, K. Shima, D. Tomida, K. Kojima, T. Ishiguro, S. F.Chichibu

    International Workshop on Nitride Semiconductors 2018 (IWN2018) 2018/11/11

  243. Radiation detection characteristic of BGaN semiconductor detectors International-presentation

    N. Yamada, K. Mochizuki, T. Maruyama, K. Ebara, Y. Takahashi, H. Nakagawa, S. Usami, Y. Honda, H. Amano, K. Kojima, S. F. Chichibu, Y. Inoue, T. Aoki, T. Nakano

    2018 IEEE Nuclear Science Symposium and Medical Imaging Conference and Workshop on Room-Temperature Semiconductor X-Ray and Gamma-Ray Detectors (NSS/MIC/RTSD) 2018/11/10

  244. 1.6-Gbps LED-based ultraviolet communication at 280 nm in direct sunlight International-presentation

    K. Kojima, Y. Yoshida, M. Shiraiwa, Y. Awaji, A. Kanno, N. Yamamoto, S.F.Chichibu

    44th European Conference on Optical Communication (ECOC 2018) 2018/09/23

  245. 反応性ヘリコン波励起プラズマスパッタ法によるSiO2/HfO2誘電体分布ブラッグ反射鏡の作製

    嶋紘平, 粕谷拓生, 小島一信, 秩父重英

    2018年秋季応用物理学会 2018/09/18

  246. 時間分解フォトルミネッセンスによるZnOのプロセス誘起欠陥の評価

    粕谷拓生, 嶋紘平, 小島一信, 秩父重英

    2018年秋季応用物理学会 2018/09/18

  247. 高純度ZnO中のSRH型非輻射再結合中心の起源と捕獲断面積

    秩父重英, 小島一信, 小池一歩, 矢野満明, 權田俊一, 石橋章司, 上殿明良

    2018年秋季応用物理学会, 2018/09/18

  248. 空間・時間分解PL を用いたGaN の局所励起子応答

    神山晃範, 小島一信, 遊佐剛, 秩父重英

    2018年秋季応用物理学会 2018/09/18

  249. バンド端近傍発光の外部量子効率が4%を超える六方晶BN単結晶の光学評価

    小島一信, 渡邊賢司, 谷口尚, 秩父重英

    2018年秋季応用物理学会 2018/09/18

  250. サファイア基板に気相成長させたh-BN薄膜の発光ダイナミクス

    秩父重英, 嶋紘平, 梅原直己, 小島一信, 原和彦

    2018年秋季応用物理学会 2018/09/18

  251. MOVPE法を用いた厚膜BGaN結晶成長の検討および縦型中性子検出デバイスの作製

    丸山貴之, 高橋祐吏, 山田夏暉, 江原一司, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2018年秋季応用物理学会 2018/09/18

  252. BGaN半導体検出器の厚膜化および放射線検出特性評価

    高橋祐吏, 丸山貴之, 山田夏暉, 江原一司, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    2018年秋季応用物理学会, 2018/09/18

  253. BGaN-MOVPE法における脱離過程の解析

    江原一司, 望月健, 井上翼, 青木徹, 秩父重英, 中野貴之

    2018年秋季応用物理学会 2018/09/18

  254. 280nm帯深紫外AlGaN発光ダイオードを用いた日光下における1.6 Gbps光無線伝送

    小島一信, 吉田悠来, 白岩雅輝, 淡路祥成, 菅野敦史, 山本直克, 秩父重英

    2018年秋季応用物理学会 2018/09/18

  255. Determination of Deformation Potentials in InGaN-Alloy Material for Theoretical Prediction of Optical Gain Characteristics in Semipolar and Nonpolar InGaN Quantum Wells Laser Diodes International-presentation

    S. Sakai, K. Kojima, S. F. Chichibu, A. A. Yamaguchi

    IEEE 26th International Semiconductor Laser Conference (ISLC2018) 2018/09/16

  256. The origin and properties of intrinsic nonradiative recombination centers in the bulk and epitaxial ZnO International-presentation

    S. F. Chichibu, K. Kojima, K. Koike, M. Yano, S. Gonda, S. Ishibashi, A. Uedono

    The 10th International Workshop on ZnO and Other Oxide Semiconductors (IWZnO2018 2018/09/11

  257. Relationship between internal quantum efficiency of radiation and photoluminescence lifetime in a ZnO single crystal International-presentation

    K. Kojima, S. F. Chichibu

    The 10th International Workshop on ZnO and Other Oxide Semiconductors (IWZnO2018) 2018/09/11

  258. Fabrication of a ZnO-based microcavity using the reactive helicon-wave-excited-plasma sputtering method International-presentation

    T. Kasuya, K. Shima, K. Kojima, K. Furusawa, S. F. Chichibu

    The 10th International Workshop on ZnO and Other Oxide Semiconductors (IWZnO2018 2018/09/11

  259. A comparative study on SiO2/ZrO2 and SiO2/HfO2 distributed Bragg reflectors for ZnO-based microcavities International-presentation

    K. Shima, T. Kasuya, K. Furusawa, K. Kojima, S. F. Chichibu

    The 10th International Workshop on ZnO and Other Oxide Semiconductors (IWZnO2018) 2018/09/11

  260. Recent progress in acidic ammonothermal growth of GaN crystals International-presentation Invited

    S. F. Chichibu, M. Saito, Q. Bao, D. Tomida, K. Kurimoto, K. Shima, K. Kojima, T. Ishiguro

    The 7th International Symposium of Growth of III-Nitrides (ISGN-7), 2018/08/05

  261. 酸性アモノサーマル法による大型GaN結晶成長への取り組み Invited

    斉藤真, 包全喜, 嶋紘平, 冨田大輔, 小島一信, 石黒徹, 秩父重英

    2018年日本結晶成長学会特別講演会 「パワーエレクトロニクス結晶の最前線」, 2018/07/18

  262. MOVPE法を用いた厚膜BGaN成長および縦型中性子検出デバイスの作製

    高橋祐吏, 丸山貴之, 山田夏暉, 江原一司, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 小島一信, 秩父重英, 井上翼, 青木徹, 中野貴之

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会,プレIWN2018第10回窒化物半導体結晶成長講演会, 2018/07/12

  263. GaN結晶成長技術の進展と発光特性向上の現状 Invited

    秩父重英, 上殿明良

    日本結晶成長学会 ナノ構造エピタキシャル成長分科会,プレIWN2018第10回窒化物半導体結晶成長講演会 2018/07/12

  264. 酸性アモノサーマル法によるGaNバルク結晶作製技術の進展 Invited

    斉藤真, 包全喜, 嶋紘平, 冨田大輔, 小島一信, 石黒徹, 秩父重英

    日本学術振興会 結晶成長の科学と技術第161委員会 2018/07/06

  265. 陽電子消滅法によるp-GaNエピ層、イオン注入層の点欠陥評価 Invited

    上殿明良, 石橋章司, 小島一信, 秩父重英

    応用物理学会結晶工学分科会, 第149回結晶工学分科会研究会「GaNonGaNパワーデバイスにむけて~p型GaNの結晶工学~」, 2018/06/15

  266. Mg添加GaNエピ層及びイオン注入層のフォトルミネッセンス評価 Invited

    秩父重英, 嶋紘平, 小島一信, 高島信也, 上野勝典, 江戸雅晴, 井口紘子, 成田哲生, 片岡恵太, 石橋章司, 上殿明良

    応用物理学会結晶工学分科会, 第149回結晶工学分科会研究会「GaNonGaNパワーデバイスにむけて~p型GaNの結晶工学~」, 2018/06/15

  267. Mgイオン注入GaN層上におけるノーマリーオフMOSFET検討 Invited

    高島信也, 田中亮, 上野勝典, 松山秀昭, 江戸雅晴, 高橋言緒, 清水三聡, 石橋章司, 中川清和, 堀田昌宏, 須田淳, 嶋紘平, 小島一信, 秩父重英, 上殿明良

    応用物理学会結晶工学分科会, 第149回結晶工学分科会研究会「GaNonGaNパワーデバイスにむけて~p型GaNの結晶工学~」, 2018/06/15

  268. Influence of Self Absorption in Two-Photon-Excitation Photoluminescence of GaN International-presentation

    T. Tanikawa, T. Fujita, K. Kojima, S. F. Chichibu, T. Matsuoka

    The 19th International Conference on Metal Organic Vapor Phase Epitaxy (ICMOVPE-19) 2018/06/03

  269. Evaluation of cubic phase formation in wurtzite type BGaN by MOVPE International-presentation

    K. Ebara, K. Mochizuki, Y. Inoue, T. Aoki, K. Kojima, S. F. Chichibu, T.Nakano

    The 19th International Conference on Metal Organic Vapor Phase Epitaxy (ICMOVPE-19) 2018/06/03

  270. Carrier trapping properties of defects in Mg-implanted GaN probed by monoenergetic positron beams International-presentation

    A. Uedono, S. Takashima, M. Edo, K. Ueno, H. Matsuyama, W. Egger, T.Koschine, C. Hugenschmidt, M. Dickmann, K. Kojima, S. F. Chichibu, S. Ishibashi

    The 45th International Symposium on Compound Semiconductors (ISCS 2018), 2018/05/29

  271. Luminescence spectra of hexagonal BN thin films grown by chemical vapor deposition on a c-plane sapphire substrate International-presentation Invited

    S. F. Chichibu, N. Umehara, K. Shima, K. Kojima, K. Hara

    The 3rd International Conference on Physics of 2D Crystals (ICP2C3) 2018/05/29

  272. Fabrication of BGaN solid state detector for neutron imaging International-presentation

    T. Nakano, K. Mochizuki, T. Maruyama, N. Yamada, H. Nakagawa, S. Usami, Y.Honda, H. Amano, S. F. Chichibi, Y. Inoue, T. Aoki

    International Workshop on Position Sensitive Neutron Detectors (PSND 2018 workshop),, 2018/05/15

  273. Quantum efficiency of radiation in wide bandgap semiconductors International-presentation Invited

    K. Kojima, S. F. Chichibu

    19th International Conference on Physics of Light-Matter Coupling in Nanostructures (PLMCN19) 2018/05/15

  274. P-type Conduction of Mg-ion Implanted N-polar GaN and the Optical Investigation International-presentation Invited

    T. Narita, K. Kataoka, H. Iguchi, K. Shima, K. Kojima, S. F. Chichibu, M.Kanechika, T. Uesugi, T. Kachi

    The 6th International Conference on Light-Emitting Devices and Their Industrial Applications (LEDIA'18 2018/04/23

  275. Formation mechanism of singular structure in AlInN layer grown on m-GaN substrate by MOVPE International-presentation Invited

    Y. Inatomi, A. Kusaba, Y. Kangawa, K. Kojima, S. F. Chichibu

    The 6th International Conference on Light-Emitting Devices and Their Industrial Applications (LEDIA'18 2018/04/23

  276. 六方晶BNの薄膜成長とその深紫外発光評価 Invited

    原和彦, 梅原直己, 小島一信, 秩父重英

    2018年春季応用物理学会,多元化合物の新規な物性と応用, 多元系化合物・太陽電池研究会 企画シンポジウム 2018/03/17

  277. 超臨界アンモニアを用いた酸性アモノサーマル法による2インチバルクGaN結晶育成

    包全喜, 斉藤真, 栗本浩平, 嶋紘平, 冨田大輔, 小島一信, 石黒徹, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 2018/03/13

  278. Parametric model for the anisotropic dielectric function of m-plane AlGaN up to 20 eV International-presentation

    M. Winkler, M. Feneberg, S. F. Chichibu, R. Collazo, Z. Sitar, M. D. Neumann, N.Esser, R. Goldhahn

    German Physical Society (DPG) Spring Meeting, Session HL 27, Nitrides: Preparation and Characterization II 2018/03/11

  279. 全方位フォトルミネッセンス法による絶対輻射量子効率測定 Invited

    小島一信, 秩父重英

    日本学術振興会ワイドギャップ半導体光・電子デバイス162委員会 3月研究会 2018/03/09

  280. ZnO単結晶の絶対輻射量子効率測定(2)

    小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  281. 厚膜BGaN中性子半導体検出器の作製と放射線検出特性評価

    丸山貴之, 望月健, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 井上翼, 青木徹, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  282. MOVPE法を用いて作製したBGaN結晶相の評価

    江原一司, 望月健, 井上翼, 青木徹, 小島一信, 秩父重英, 秩父重英, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  283. 反応性ヘリコン波励起プラズマスパッタ法による誘電体分布ブラッグ反射鏡の形成(2)

    嶋紘平, 粕谷拓生, 粕谷拓生, 菊地清, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  284. Mgイオン注入N極性面GaNの時間分解フォトルミネッセンス評価

    嶋紘平, 井口紘子, 成田哲生, 片岡恵太, 上殿明良, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  285. 赤色蛍光体(CaAlSiN3:Eu)の高温劣化機構の評価

    大石昌嗣, 大石昌嗣, 塩見昌平, 山本孝, 植木智之, 改井陽一郎, 秩父重英, 高取愛子, 小島一信, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  286. GaN単結晶における光励起キャリアの空間的不均一と内部量子効率との関係(2)

    小島一信, 浅井栄大, 福田浩一, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  287. GaN単結晶における光励起キャリアの空間的不均一と内部量子効率の関係(1)

    浅井栄大, 小島一信, 福田浩一, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  288. 有機金属気相成長法にて自立GaN基板上に成長させたGaNホモエピタキシャル層の光物性評価

    小島一信, 堀切文正, 成田好伸, 吉田丈洋, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  289. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(1)

    秩父重英, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  290. 酸性アモノサーマル法による大型GaN結晶成長の検討

    斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 栗本浩平, 冨田大輔, 嶋紘平, 小島一信, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  291. 反応性ヘリコン波励起プラズマスパッタ法による誘電体分布ブラッグ反射鏡の形成(1)

    粕谷拓生, 粕谷拓生, 嶋紘平, 菊地清, 小島一信, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  292. サファイア基板に気相成長させた六方晶BN薄膜の発光スペクトル

    秩父重英, 梅原直己, 小島一信, 原和彦, 原和彦

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  293. MOVPE成長m面AlInN/GaNヘテロ構造における特異構造(2)

    稲富悠也, 草場彰, 柿本浩一, 柿本浩一, 寒川義裕, 寒川義裕, 寒川義裕, 小島一信, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  294. 六方晶BNの薄膜成長とその深紫外発光評価

    原和彦, 原和彦, 梅原直己, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  295. GaNの二光子励起フォトルミネッセンス測定における自己吸収の影響

    谷川智之, 小島一信, 秩父重英, 松岡隆志

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  296. Mgイオン注入GaN MOSFETのチャネル特性向上

    高島信也, 田中亮, 上野勝典, 松山秀昭, 江戸雅晴, 小島一信, 秩父重英, 秩父重英, 上殿明良, 中川清和

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2018/03/05

  297. Quantum efficiency of radiation in wide bandgap semiconductor materials International-presentation

    Kazunobu Kojima, Shigefusa F. Chichibu

    Kick-off Symposium for World Leading Research Centers 2018/02/19

  298. Spatio-time-resolved cathodoluminescence of h-BN microcrystals International-presentation Invited

    S. F. Chichibu, Y. Ishikawa, H. Kominami, K. Hara

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2018, Gallium Nitride Materials and Devices XIII (OE107), 2018/01/27

  299. Determination of absolute quantum efficiency of radiation in nitride semiconductors using an integrating sphere International-presentation Invited

    K. Kojima, H. Ikeda, K. Fujito, S. F. Chichibu

    The Society of Photo-Optical Instrumentation Engineers (SPIE) Photonics West 2018, Gallium Nitride Materials and Devices XIII (OE107) 2018/01/27

  300. ワイドギャップ半導体の発光量子効率と発光寿命の相関 Invited

    小島一信, 秩父重英

    応用物理学会励起ナノプロセス研究会 第13回研究会, 「ワイドギャップ半導体の励起ナノプロセス」 2018/01/20

  301. BGaN半導体材料を用いた新規熱中性子検出器の提案と開発

    中野貴之, 望月健, 中村匠, 有川卓弥, 中川央也, 宇佐美茂佳, 本田善央, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 三村秀典, 井上翼, 青木徹

    日本原子力学会秋の大会予稿集(CD-ROM) 2017/08/29

  302. BGaN‐MOVPE法におけるB有機金属原料の検討

    望月健, 中村匠, 青木徹, 井上翼, 小島一信, 秩父重英, 秩父重英, 中野貴之

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  303. 減衰全反射法を用いたGaN単結晶の表面状態評価

    小島一信, 赤尾賢一, 菅野美幸, 水野広介, 永森浩司, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  304. 六方晶BN微結晶の発光ダイナミクス評価(4)

    秩父重英, 石川陽一, 小南裕子, 原和彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  305. 光励起下のGaN単結晶における内部量子効率の空間的不均一

    小島一信, 浅井栄大, 福田浩一, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  306. 二次組成変調によって電子・正孔波動関数の重なり積分を増強させたc面AlGaN多重量子井戸の発光特性評価

    小島一信, 林侑介, 三宅秀人, 平松和政, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  307. 偏光遷移領域におけるc面AlGaN量子井戸構造の量子細線型状態密度

    坂井繁太, 南琢人, 小島一信, 秩父重英, 山口敦史

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  308. GaN基板上Mg添加GaNの時間分解フォトルミネッセンス評価

    秩父重英, 秩父重英, 小島一信, 嶋紘平, 高島信也, 江戸雅晴, 上野勝典, 石橋章司, 上殿明良

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  309. n‐GaNホモエピ薄膜上へのp‐NiOスパッタ堆積とUV光吸収太陽電池及びLEDの試作

    WANG Z, 中井洋志, 杉山睦, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  310. 酸性鉱化剤を用いたアモノサーマル法による電子デバイス用GaN結晶合成の進展

    秩父重英, 斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 冨田大輔, 嶋紘平, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  311. 六方晶BN微結晶の発光ダイナミクス評価(3)

    秩父重英, 石川陽一, 小南裕子, 原和彦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2017/08/25

  312. Liquid-Crystalline Organic-Inorganic Hybrid Dendrimer with a Monodispersed CdS Nano-Core: Self-Organized Structure-Dependent Photoluminescence Emission-Quenching Behavior

    蟹江澄志, 松原正樹, STEVENSON Warren, 矢吹純, ZENG Xiangbing, 小島一信, 秩父重英, 玉田薫, 村松淳司, UNGAR Goran

    日本液晶学会討論会講演予稿集(CD-ROM) 2017/08/10

  313. 超臨界アンモニアを用いた酸性アモノサーマル法によるGaN結晶育成

    包全喜, 斉藤真, 栗本浩平, 小島一信, 冨田大輔, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 2017/03/06

  314. マクロステップを有するc面AlGaN量子井戸発光ダイオード構造の発光特性

    小島一信, 長澤陽祐, 平野光, 一本松正道, 本田善央, 天野浩, 天野浩, 天野浩, 赤崎勇, 秩父重英, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  315. BGaN縦型ダイオードの作製と放射線検出特性の評価

    望月健, 中村匠, 有川卓弥, 宇佐美茂佳, 久志本真希, 本田善央, 本田善央, 天野浩, 天野浩, 天野浩, 小島一信, 秩父重英, 秩父重英, 三村秀典, 井上翼, 青木徹, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  316. 絶対吸収率と光電流測定とを組み合わせた発光ダイオードの光励起キャリア濃度定量

    宇佐美茂佳, 小島一信, 久志本真希, 出来真斗, 新田州吾, 本田善央, 秩父重英, 秩父重英, 天野浩, 天野浩, 天野浩

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  317. GaN基板上イオン注入およびエピタキシャル成長Mg添加GaNのフォトルミネッセンス評価(2)

    秩父重英, 秩父重英, 小島一信, 高島信也, 江戸雅晴, 上野勝典, 清水三聡, 高橋言緒, 石橋章司, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  318. m面AlInNエピタキシャルナノ構造を用いた偏光光源の可能性

    秩父重英, 小島一信, 上殿明良, 佐藤義孝

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  319. ZnO単結晶の絶対輻射量子効率測定

    小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  320. 高品質GaN単結晶の絶対輻射量子効率測定(4)

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2017/03/01

  321. 積分球を用いた窒化ガリウム単結晶の光物性評価

    小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2017

  322. TMBを用いた高品質BGaN結晶成長技術の開発

    中野貴之, 望月健, 江原一司, 井上翼, 青木徹, 小島一信, 秩父重英, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2017

  323. AlInNを用いた深紫外光源の開発~薄膜成長における組成引込現象の理論解析~

    稲富悠也, 寒川義裕, 寒川義裕, 寒川義裕, 小島一信, 秩父重英, 秩父重英, 柿本浩一

    東北大学多元物質科学研究所研究発表会講演予稿集 2017

  324. Measurements of quantum efficiency of radiation in nitride semiconductors based on omnidirectional photoluminescence (ODPL) spectroscopy

    小島一信, 三宅秀人, 平松和政, 秩父重英

    結晶成長国内会議予稿集(CD-ROM) 2017

  325. Deep-UV cathodoluminescence from the hexagonal boron nitride thin films grown on sapphire substrates

    原和彦, 原和彦, 梅原直己, 秩父重英, 小島一信, 光野徹也, 小南裕子

    結晶成長国内会議予稿集(CD-ROM) 2017

  326. GaN基板上に作製されたMgイオン注入およびエピタキシャル成長Mg添加GaNのフォトルミネッセンス評価

    小島一信, 高島信也, 江戸雅晴, 上野勝典, 清水三聡, 高橋言緒, 石橋章司, 上殿明良, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2016/09/01

  327. ScxAl1-xNとYxAl1-xNのバンドギャップとバンドオフセットの第一原理計算

    島田和宏, 市川拓也, 坂巻宏紀, 近拳輔, 堂上真人, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2016/09/01

  328. 高品質GaN単結晶の絶対輻射量子効率測定(3)

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2016/09/01

  329. 高品質GaN単結晶の絶対輻射量子効率測定(2)

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2016/09/01

  330. 固相剥離法によるSi系剥片状ナノ粒子の合成と光物性・光触媒特性

    板原浩, 今川晴雄, WU X, 山崎芳樹, YIN S, 小島一信, 秩父重英, 佐藤次雄

    日本セラミックス協会秋季シンポジウム講演予稿集(CD-ROM) 2016/08/29

  331. 集束フェムト秒パルス電子線を用いた窒化物半導体紫外線発光素子材料の時間空間同時分解分光計測

    秩父重英

    旭硝子財団研究助成成果発表会 2016/07

  332. 単分散球状CdSナノ粒子をコアとする液晶性有機無機ハイブリッドデンドリマー:自己組織構造由来の蛍光特性の発現

    蟹江澄志, 松原正樹, STEVENSON Warren, 矢吹純, ZENG Xiangbing, DONG Haoliang, 小島一信, 秩父重英, 玉田薫, 村松淳司, UNGAR Goran, UNGAR Goran

    ナノ学会大会講演予稿集 2016/06/14

  333. 酸性アモノサーマル法による高品質GaN結晶の育成

    包全喜, 斉藤真, 栗本浩平, 小島一信, 山崎芳樹, 冨田大輔, 喬焜, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    化学工学会年会研究発表講演要旨集(CD-ROM) 2016/03/13

  334. 酸性アモノサーマル法による高品位バルクGaN結晶の高速成長

    栗本浩平, 包全喜, 包全喜, 斉藤真, 斉藤真, 茅野林造, 小島一信, 石黒徹, 秩父重英

    日本金属学会講演概要(CD-ROM) 2016/03/09

  335. Si系剥片状ナノ材料の光物性・光触媒特性

    板原浩, WU Xiaoyong, 山崎芳樹, 今川晴雄, YIN Shu, 小島一信, 秩父重英, 佐藤次雄

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  336. 時間空間分解カソードルミネッセンスによるIII族窒化物半導体の評価

    秩父重英, 山崎芳樹, 小島一信

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  337. 高キャリア濃度n型m面GaN単結晶におけるホットキャリアの輻射再結合ダイナミクス

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  338. 組成揺らぎを考慮したAlGaNおよびInGaN量子井戸における光学利得の理論的比較

    南琢人, 小島一信, 坂井繁太, 秩父重英, 山口敦史

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  339. 低貫通転位密度Zn極性ZnOホモエピタキシャル薄膜への3d遷移金属添加によるキャリア寿命制御

    秩父重英, 小島一信, 山崎芳樹, 古澤健太郎, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  340. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(IV)

    秩父重英, 小島一信, 山崎芳樹, 佐藤義孝, 上殿明良

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  341. 高品質GaN単結晶の絶対輻射量子効率測定

    小島一信, 大友友美, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  342. 90%を超える電子・正孔波動関数の重なり積分を達成可能なAlGaN量子井戸の設計指針

    小島一信, 山崎芳樹, 古澤健太郎, 三宅秀人, 平松和政, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  343. MOVPE法を用いたBGaN成長における成長雰囲気の検討

    中村匠, 矢野雄大, 上山浩平, 青木徹, 井上翼, 小島一信, 秩父重英, 中野貴之

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2016/03/03

  344. BGaN中性子半導体検出器に向けた基礎特性評価およびデバイス開発

    中野貴之, 中村匠, 望月健, 有川卓弥, 青木徹, SCHUETT Sebastian, FIEDERLE Michael, 小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2016

  345. 酸性アモノサーマル法によるバルクGaN結晶の育成

    包全喜, 包全喜, 斉藤真, 斉藤真, 栗本浩平, 栗本浩平, 小島一信, 冨田大輔, 喬焜, 鏡谷勇二, 茅野林造, 石黒徹, 横山千昭, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2016

  346. 酸性アモノサーマル法による高品位バルクGaN結晶成長

    斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 栗本浩平, 冨田大輔, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    結晶成長国内会議予稿集(CD-ROM) 2015/10/19

  347. NiO:Li/ZnOヘテロ接合透明太陽電池の試作

    中井洋志, 前田亮, 小笠原愛理, 森山和眞, 山田愛佳, 熊谷健太, 杉本岳, ISHWOR Khatri, 秩父重英, 杉山睦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  348. 高品質GaN単結晶における自由励起子とドナー束縛励起子の発光ダイナミクス

    小島一信, 斉藤真, 斉藤真, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  349. 酸性アモノサーマル法合成GaN種結晶上にハイドライド気相エピタキシャル成長させたm面自立GaN基板の電気的・光学的特性

    小島一信, 塚田悠介, 古川えりか, 斉藤真, 斉藤真, 三川豊, 久保秀一, 池田宏隆, 藤戸健史, 上殿明良, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  350. ウルツ鉱InxAl1-xNの格子定数,弾性定数,圧電定数,自発分極の第一原理計算

    島田和宏, 伊藤大稚, 岩崎克宣, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  351. ZnOの点欠陥と非輻射再結合中心に関する考察

    秩父重英, 上殿明良

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  352. 酸性アモノサーマル法による高品位GaN高速育成

    斉藤真, 斉藤真, BAO Q, BAO Q, 栗本浩平, 栗本浩平, 冨田大輔, 小島一信, 山崎芳樹, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2015/08/31

  353. 酸性アモノサーマル法によるGaN結晶育成に及ぼす圧力の効果

    栗本浩平, BAO Q, 斉藤真, 冨田大輔, 伊藤みずき, 山崎芳樹, 小島一信, 鏡谷勇二, 茅野林造, 石黒徹, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  354. ミストCVDによって作製したコランダム型酸化インジウム(α‐In2O3)の特性評価

    須和祐太, 川原村敏幸, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  355. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー(4):遷移金属不純物に関する考察

    岩橋咲弥, 山崎芳樹, 小島一信, 古澤健太郎, 上殿明良, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  356. m面Al1-xInxN薄膜の分光エリプソメトリーによる評価

    加賀谷大樹, 山崎芳樹, 池田宏隆, 藤戸健史, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  357. RFリアクティブスパッタ堆積したLi添加NiO薄膜の正孔濃度制御

    中井洋志, 前田亮, 小笠原愛理, 森山和眞, 川出大佑, 秩父重英, 杉山睦

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  358. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(III)

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  359. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー(3):浅い不純物に関する考察

    山崎芳樹, 古澤健太郎, 岩橋咲弥, 小島一信, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2015/02/26

  360. 水熱合成ZnOターゲットを用いた低ドナー不純物濃度ZnO薄膜のヘリコン波励起プラズマスパッタエピタキシャル成長

    古澤健太郎, 山崎芳樹, 小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2015

  361. 液晶性有機無機ハイブリッドデンドリマー:自己組織化CdS量子ドットのフォトルミネッセンス挙動

    松原正樹, 松原正樹, STEVENSON Warren, 矢吹純, 山崎芳樹, 小島一信, 秩父重英, ZENG Xiangbing, DONG Haoliang, UNGAR Goran, 蟹江澄志, 村松淳司

    東北大学多元物質科学研究所研究発表会講演予稿集 2015

  362. BGaN半導体材料における結晶成長技術の開発と諸特性の評価

    中野貴之, 上山浩平, 中村匠, 井上翼, 青木徹, 小島一信, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2015

  363. 混晶組成変調によるSi添加AlGaN多重量子井戸の発光効率向上

    山崎芳樹, 古澤健太郎, 小島一信, 中濱和大, 三宅秀人, 平松和政, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  364. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(II)

    秩父重英, 石川陽一, 大友友美, 古澤健太郎, 池田宏隆, 藤戸健史

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  365. m面GaN基板上に成長したAl1-xInxNエピタキシャル薄膜の偏光特性

    小島一信, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  366. 酸性アモノサーマル法による高品位GaN高速育成

    斉藤真, BAO Q, 栗本浩平, 冨田大輔, 小島一信, 山崎芳樹, 鏡谷勇二, 茅野林造, QIAO K, 石黒徹, 横山千昭, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  367. RFリアクティブスパッタ堆積したNiOを用いた透明薄膜トランジスタの試作

    川出大佑, 酒井涼, 渡邊康之, 秩父重英, 杉山睦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  368. フェムト秒集束パルス電子線を用いた特異構造界面の発光ダイナミクス解析

    秩父重英, 石川陽一, 山崎芳樹, 小島一信

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2014/09/01

  369. 集束フェムト秒パルス電子線を用いた窒化物半導体紫外線発光素子材料の時間空間同時分解分光計測

    秩父重英

    旭硝子財団研究助成成果発表会 2014/07

  370. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー(2)

    古澤健太郎, 中沢駿仁, 石川陽一, 田代公則, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2014/03/03

  371. 自立GaN基板上m面Al1-xInxNエピタキシャル薄膜の発光特性(I)

    秩父重英, 古澤健太郎, 大友友美, 羽豆耕治, 尾沼猛儀, 石川陽一, 田代公則, 池田宏隆, 藤戸健史

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2014/03/03

  372. 反応性ヘリコン波励起プラズマスパッタ法によるZnO系微小光共振器形成の検討

    古澤健太郎, 柿畑研人, 小山雅史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2014/03/03

  373. 酸性アモノサーマル法による高品位GaN結晶育成

    斉藤真, BAO Q, 冨田大輔, 古澤健太郎, 鏡谷勇二, 茅野林造, QIAO K, 石黒徹, 横山千昭, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2014/03/03

  374. AlNテンプレート上Si添加高AlNモル分率AlxGa1-xN多重量子井戸の時間空間分解陰極線蛍光分光評価

    秩父重英, 石川陽一, 古澤健太郎, 田代公則, 大友友美, 三宅秀人, 平松和政

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2014/03/03

  375. InGaN系アンバー発光ダイオードを用いた単一チップマルチカラー発光ダイオード

    柴田翔太, 小豆畑敬, 秩父重英

    応用物理学会東北支部学術講演会講演予稿集 2013/12/05

  376. Mg添加(0001)面p型GaN上への(001)面Nb添加アナターゼのヘリコン波励起プラズマスパッタエピタキシャル成長と電気伝導特性

    山岸正裕, 羽豆耕治, 大友友美, 石川陽一, 古澤健太郎, 中山徳行, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2013/08/31

  377. 時間空間分解カソードルミネッセンス法による単一積層欠陥回りでの発光ダイナミクス解析

    古澤健太郎, 石川陽一, 田代公則, 羽豆耕治, 長尾哲, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2013/08/31

  378. 酸性アモノサーマル法によるGaN結晶育成と鉱化剤の影響

    BAO Q, 斉藤真, 冨田大輔, 羽豆耕治, 古澤健太郎, 鏡谷勇二, 茅野林造, QIAO K, 石黒徹, 横山千昭, 秩父重英

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2013/08/31

  379. NiO薄膜と様々な半導体・金属とのバンドアライメントの検討

    川出大佑, 森山和眞, 秩父重英, 杉山睦

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2013/08/31

  380. 気相成長AlN基板上AlNエピタキシャル層の時間空間分解カソードルミネッセンス計測

    秩父重英, 石川陽一, 田代公則, 古澤健太郎, 羽豆耕治, XIE Jinqian, 三田清二, COLLAZO Ramon, SITAR Zlatko

    応用物理学会秋季学術講演会講演予稿集(CD-ROM) 2013/08/31

  381. Si添加Al0.6Ga0.4N混晶薄膜の時間分解カソードルミネッセンス評価

    羽豆耕治, 石川陽一, 田代公則, 古澤健太郎, 三宅秀人, 平松和政, 上殿明良, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2013/03/11

  382. 高輝度表面入射型パルス電子銃を搭載した時間空間分解カソードルミネッセンス装置によるHVPE成長GaN基板の評価

    石川陽一, 古澤健太郎, 田代公則, 羽豆耕治, 長尾哲, 池田宏隆, 藤戸健史, 秩父重英

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2013/03/11

  383. NiO/NixZn1-xO/ZnO構造を用いた可視光透過型太陽電池の試作

    川出大佑, 中村文香, 山下貴史, 橋本龍一, 清水翼, 秩父重英, 杉山睦

    応用物理学会春季学術講演会講演予稿集(CD-ROM) 2013/03/11

  384. m面GaN基板上にNH3‐MBE成長したAl0.25Ga0.75Nの時間空間分解CL評価―GaN基板のチルトモゼイクが発光特性に及ぼす影響―

    秩父重英, 羽豆耕治, 石川陽一, 田代公則, 古澤健太郎, 長尾哲, 藤戸健史

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  385. 有機原料を用いたCuIn(S,Se)2薄膜の成長過程解析

    庄司竜輝, 佐藤宗一, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  386. ジターシャリブチル硫黄を用いたCuInS2薄膜の硫化過程の検討

    加山慶樹, 庄司竜輝, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  387. 六方晶BN微結晶の時間・空間分解カソードルミネッセンス評価

    石川陽一, 田代公則, 羽豆耕治, 古澤健太郎, 小南裕子, 原和彦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  388. 可視光透過型太陽電池に向けたNiO薄膜のキャリア密度の制御

    川出大佑, 石田淳, 渡辺遥翼, 藁澤萌, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  389. ZnO単結晶基板上AlInGaN薄膜の屈折率分散の測定

    羽豆耕治, 加賀谷宗仁, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  390. 表面入射型パルス光電子銃を搭載した時間空間分解カソードルミネッセンス装置によるワイドバンドギャップ半導体の評価

    古澤健太郎, 石川陽一, 田代公則, 羽豆耕治, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  391. GaNと格子整合するScxAlyGa1-x-yNの自発分極と電子構造の第一原理計算

    島田和宏, 秩父重英, 秦雅彦, 高田朋幸, 佐沢洋幸, 宗田孝之

    応用物理学会学術講演会講演予稿集(CD-ROM) 2012/08/27

  392. 高純度低転位密度GaN基板の評価(2)―HVPE成長GaN上AlGaN/GaN構造の時間分解PL評価―

    秩父重英, 羽豆耕治, 石川陽一, 田代公則, 浪田秀郎, 長尾哲, 藤戸健史

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  393. ルチルおよびアナターゼTiO2/GaNヘテロ界面のX線光電子分光法による価電子帯オフセット評価

    羽豆耕治, 中山徳行, 田中明和, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  394. 水熱合成ZnOターゲットを用いたZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー

    JANG S.‐H, 羽豆耕治, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  395. 酸性アモノサーマル法によるGaN結晶の高速成長

    冨田大輔, BAO Quanxi, 鏡谷勇二, 澤山拓洋, 羽豆耕治, 斉藤真, 秩父重英, 横山千昭, 石黒徹

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  396. 時空間同時分解カソードルミネッセンス法によるIII族窒化物半導体の評価(2)―HVPE成長GaN基板

    石川陽一, 羽豆耕治, 田代公則, 松本創, 藤戸健史, 下山謙司, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  397. 六方晶BN微結晶の時間分解ルミネッセンス評価

    石川陽一, 羽豆耕治, 田代公則, 小南裕子, 原和彦, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  398. Si添加Al0.6Ga0.4N混晶薄膜の時間分解フォトルミネッセンス評価

    羽豆耕治, 石川陽一, 田代公則, 三宅秀人, 平松和政, 上殿明良, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  399. フェムト秒パルス電子線発生とワイドギャップ半導体の評価

    秩父重英, 羽豆耕治, 石川陽一, 古澤健太郎, 上殿明良

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  400. 高AlNモル分率AlGaN混晶薄膜の時間分解PL/CL評価

    秩父重英, 羽豆耕治, 尾沼猛儀, 上殿明良

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  401. 高純度低転位密度GaN基板の評価(1)―HVPE成長GaNの陽電子消滅と時間分解フォトルミネッセンス評価―

    秩父重英, 羽豆耕治, 石川陽一, 田代公則, 浪田秀郎, 長尾哲, 藤戸健史, 上殿明良

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2012/02/29

  402. 自立GaN基板の時間・空間同時分解カソードルミネッセンス評価

    田代公則, 石川陽一, 羽豆耕治, 古澤健太郎, 浪田秀朗, 長尾哲, 藤戸健史, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2012

  403. 酸化亜鉛の放射線耐性

    小池一歩, 藤本龍吾, 和田涼太, 佐々誠彦, 矢野満明, 權田俊一, 羽豆耕治, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2012

  404. m面成長したInGaN薄膜の偏光XAFS解析

    宮永崇史, 小豆畑敬, 新田清文, 秩父重英

    日本物理学会講演概要集 2011/08/24

  405. 時空間同時分解カソードルミネッセンス法によるIII族窒化物半導体評価(1)―HVPE成長GaN基板

    石川陽一, 羽豆耕治, 松本創, 藤戸健史, 下山謙司, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  406. 有機硫黄原料を用いたCuInS2薄膜の成長過程解析

    庄司竜輝, LIU X. H, 藤原千佳, DOU X, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  407. ウルツ鉱型MgxZn1-xO混晶の弾性テンソル要素C13,C33に関する考察

    JANG S.‐H, 羽豆耕治, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  408. アモノサーマルGaN基板上に形成したAlGaN/GaNの時間分解フォトルミネッセンス評価

    秩父重英, 羽豆耕治, 鏡谷勇二, 尾沼猛儀, EHRENTRAUT D, 福田承生, 石黒徹

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  409. ヘリコン波励起プラズマスパッタエピタキシーによるc面GaN上へのルチル/アナターゼTiO2:Nb薄膜の結晶相選択成長(2)

    羽豆耕治, 中山徳行, 田中明和, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  410. AlNエピタキシャル薄膜の発光寿命と点欠陥他の関係について

    秩父重英, 羽豆耕治, 尾沼猛儀, 上殿明良

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  411. セレン化/硫化成長の特徴とCu(In,Ga)(S,Se)2の成長プロセス

    杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  412. 偏光反射スペクトル解析によるZnOの物性値の同定

    羽豆耕治, 吉海江憲, 吉岡宗一郎, 高木絢子, 鳥井康介, 宗田孝之, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  413. GaNと格子整合するYxAlyGa1-x-yNの自発分極とバンドギャップボーイングの第一原理計算

    島田和宏, 羽豆耕治, 秩父重英, 秦雅彦, 高田朋幸, 佐沢洋幸, 宗田孝之

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  414. ヘリコン波励起プラズマスパッタ法によるNb添加TiO2薄膜の堆積(4)

    羽豆耕治, 南風盛将光, 中山徳行, 田中明和, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  415. RFスパッタ法によるNiO系可視光透過型太陽電池の試作

    石田淳, 村田芳綱, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2011/08/16

  416. CIGS薄膜のセレン化成長―これまでとこれから―

    杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  417. 極性・非極性(Al,In,Ga)N混晶薄膜における振動子強度の歪依存性

    尾沼猛儀, 羽豆耕治, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  418. 気相合成NH4Cl鉱化剤を用いて成長したアモノサーマルGaN基板上にMOVPE形成したAlGaN/GaNの時間分解フォトルミネッセンス評価

    秩父重英, 羽豆耕治, 鏡谷勇二, 尾沼猛儀, EHRENTRAUT D, 福田承生, 石黒徹

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  419. MOVPE成長AlN薄膜の点欠陥・不純物が発光寿命に及ぼす影響

    秩父重英, 尾沼猛儀, 羽豆耕治, 上殿明良

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  420. ウルツ鉱型MgxZn1-xO混晶の弾性テンソル要素に関する考察

    JANG S.‐H, 羽豆耕治, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  421. アモノサーマル法によるGaN結晶育成速度の圧力・鉱化剤依存

    鏡谷勇二, BAO Quanxi, 澤山拓洋, 冨田大輔, 羽豆耕治, 秩父重英, 横山千昭, 石黒徹

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  422. m面自立GaN基板のチルトモザイク異方性がNH3‐MBE成長m面Al0.25Ga0.75N薄膜の発光特性に与える影響

    秩父重英, 加賀谷宗仁, 尾沼猛儀, 羽豆耕治

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  423. ジターシャリブチル硫黄を用いたCuInS2薄膜の硫化成長

    LIU X.H, 藤原千佳, 庄司竜輝, DOU X, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  424. m面ZnO基板の偏光反射スペクトルの解析

    羽豆耕治, 吉海江憲, 吉岡宗一郎, 高木絢子, 鳥井康介, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  425. ヘリコン波励起プラズマスパッタエピタキシーによるc面GaN上へのルチル/アナターゼTiO2:Nb薄膜の結晶相選択成長

    羽豆耕治, FOUDA A, 中山徳行, 田中明和, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  426. ヘリコン波励起プラズマスパッタ法によるNb添加TiO2薄膜の堆積(3)

    羽豆耕治, FOUDA A, 南風盛将光, 中山徳行, 田中明和, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  427. RFリアクティブスパッタ法によるNiO薄膜の低酸素分圧成長

    石田淳, 村田芳綱, 秩父重英, 杉山睦

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2011/03/09

  428. 酸性アモノサーマル法によるGaN結晶育成

    包全喜, 澤山拓洋, 橋本貴範, 佐藤福馬, 冨田大輔, 羽豆耕治, 秩父重英, 横山千昭, 石黒徹

    東北大学多元物質科学研究所研究発表会講演予稿集 2011

  429. NH4Iを用いたアモノサーマル法によるGaN結晶の高速育成

    橋本貴範, 澤山拓洋, 佐藤福馬, 包全喜, 羽豆耕治, 冨田大輔, 喬焜, 秩父重英, 石黒徹, 横山千昭

    東北大学多元物質科学研究所研究発表会講演予稿集 2011

  430. NiO系酸化物半導体を用いた可視光透過型太陽電池機能を有する窓ガラスの創成

    石田淳, 渡辺遥翼, 藁澤萌, 秩父重英, 杉山睦

    東北大学多元物質科学研究所研究発表会講演予稿集 2011

  431. ウルツ鉱型MgxZn1-xO混晶の弾性テンソル要素C13,C33に関する考察

    張成燻, 羽豆耕治, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2011

  432. 偏光XAFS法によるm面AlGaN薄膜のAl原子周囲の局所構造解析

    中嶋堅悟, 宮永崇史, 宮崎達也, 小豆畑敬, 秩父重英

    PFシンポジウム要旨集 2011

  433. 時空間同時分解カソードルミネッセンス法によるm面自立GaN基板上InGaN膜の局所キャリアダイナミクス解析

    加賀谷宗仁, CORFDIR P, GANIERE J.D, DEVEAUD‐PLEDRAN B, GRANDJEAN N, 秩父重英

    応用物理学会東北支部学術講演会講演予稿集 2010/11/22

  434. ヨウ化アンモニウムを鉱化剤に用いたアモノサーマル法によるGaN育成

    鏡谷勇二, 栗林岳人, 羽豆耕治, 尾沼猛儀, 冨田大輔, 志村玲子, 秩父重英, 杉山和正, 横山千昭, 石黒徹, 福田承生

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  435. RFリアクティブスパッタ法によるNiO薄膜の成長とNiO系太陽電池の試作

    石田淳, 工藤遥, 村田芳綱, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  436. CdフリーCIGS太陽電池に向けたSe化法によるZnOSe薄膜成長

    石川薫, 川崎善史, 庄司竜輝, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  437. セレン化・硫化法を用いたCu(In,Al)(S,Se)2薄膜成長

    庄司竜輝, 藤原千佳, 石川薫, 川崎善史, 佐藤友昭, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  438. CIS系太陽電池に向けたキャリア密度傾斜ZnO系窓層の試作

    村田芳綱, 工藤遥, 石田淳, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  439. 電子線照射によるCIGS太陽電池の電気的・光学的特性への影響

    廣瀬維子, 藁澤萌, 高倉健一郎, 木村真一, 秩父重英, 大山英典, 杉山睦

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  440. ジエチルセレンを用いたSe化法によるCIGS薄膜の成長過程の検討

    川崎善史, 佐藤友昭, 石川薫, 庄司竜輝, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  441. 気相合成した酸性鉱化剤を用いて成長したアモノサーマルGaN及びMOVPEホモエピタキシャル層の評価

    秩父重英, 鏡谷勇二, 羽豆耕治, 尾沼猛儀, 石黒徹, 福田承生

    応用物理学会学術講演会講演予稿集(CD-ROM) 2010/08/30

  442. 非極性面AlInN混晶を用いた紫外線発光素子の基礎研究

    秩父重英

    旭硝子財団研究助成成果発表会 2010/07

  443. 自立GaN基板へのm面Al1-xInxN薄膜のMOVPE成長

    秩父重英, 羽豆耕治, 尾沼猛儀

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  444. パルス電子線を用いた窒化物半導体のピコ秒時間分解分光計測(3)―MOVPE 成長高AlNモル分率AlGaNの時間分解CL計測―

    羽豆耕治, 尾沼猛儀, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  445. パルス電子線を用いた窒化物半導体のピコ秒時間分解分光計測(2)―MOVPE成長AlNの時間分解PLとの比較―

    尾沼猛儀, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  446. TiO2:Nb薄膜のGaNへのヘリコン波励起プラズマスパッタエピタキシー

    羽豆耕治, FOUDA A. N, 中山徳行, 田中明和, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  447. ヘリコン波励起プラズマスパッタエピタキシーによるZn極性ZnO基板上へのMgZnO/ZnOヘテロ構造形成

    秩父重英, 澤井泰, 天池宏明, 羽豆耕治

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  448. ヘリコン波励起プラズマスパッタ法によるNb添加TiO2薄膜の堆積(2)

    FOUDA A. N, 羽豆耕治, 中山徳行, 田中明和, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  449. アンモニアの相状態がアモノサーマル法GaN結晶作製に与える影響

    鏡谷勇二, 石鍋隆幸, 栗林岳人, 増田善雄, 羽豆耕治, 尾沼猛儀, 秩父重英, 横山千昭, 石黒徹

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  450. ヘリコン波励起プラズマスパッタエピタキシーによるZn極性ZnO基板上へのホモエピ成長

    澤井泰, 天池宏明, 羽豆耕治, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  451. パルス電子線を用いた窒化物半導体のピコ秒時間分解分光計測(1)―パルス電子線発生とGaN計測―

    秩父重英, 尾沼猛儀, 羽豆耕治, 鏡谷勇二, 石黒徹, 福田承生

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  452. パルス電子線を用いた窒化物半導体のピコ秒時間分解分光計測(4)―MOVPE成長m面InGaN薄膜の時空間同時分解計測―

    加賀谷宗仁, CORFDIR P, GANIERE J. D, DEVEAUD‐PLEDRAN B, GRANDJEAN N, 秩父重英

    応用物理学関係連合講演会講演予稿集(CD-ROM) 2010/03/03

  453. ヘリコン波励起プラズマスパッタエピタキシーによるZn極性ZnO基板上へのMgZnO/ZnOヘテロ構造形成

    羽豆耕治, 澤井泰, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2010

  454. Structural and optical studies on nonpolar AlInN alloys for ultraviolet light emitters

    秩父重英

    旭硝子財団助成成果報告書(Web) 2010

  455. 時空間同時分解カソードルミネッセンス法によるm面自立GaN基板上InGaN薄膜の局所キャリアダイナミクス解析

    加賀谷宗仁, CORFDIR Pierre, GANIERE Jean‐Daniel, DEVEAUD‐PLEDRAN Benoit, GRANDJEAN Nicolas, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2010

  456. Exciton emission mechamsm in AlN epitaxial films

    尾沼猛儀, 羽豆耕治, 宗田孝之, 上殿明良, 秩父重英

    電子情報通信学会技術研究報告 2009/11/12

  457. NH3‐MBE成長m面AlxGa1-xN薄膜の空間分解陰極線蛍光評価

    秩父重英, 羽豆耕治, 加賀谷宗仁, 尾沼猛儀

    応用物理学会学術講演会講演予稿集 2009/09/08

  458. アモノサーマル法による高純度GaN結晶育成

    鏡谷勇二, 秩父重英, 羽豆耕治, 尾沼猛儀, 石黒徹, 福田承生

    応用物理学会学術講演会講演予稿集 2009/09/08

  459. ヘリコン波励起プラズマスパッタエピタキシーによるZn極性ZnO基板上へのホモエピ成長

    澤井泰, 天池宏明, 羽豆耕治, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  460. ヘリコン波励起プラズマスパッタ法によるNb添加TiO2薄膜の堆積

    FOUDA Aly N, 羽豆耕治, 中山徳行, 阿部能之, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  461. RFスパッタ堆積時の酸素混合比がNiO薄膜の配向性に与える影響

    村田芳綱, 平田裕紀, 高畑覚, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  462. Cu(In,Ga)Se2薄膜太陽電池の耐粒子線特性に関する考察

    廣瀬維子, 安庭宗弘, 高倉健一郎, 藤原千佳, 中西久幸, 秩父重英, 大山英典, 木村真一, 杉山睦

    応用物理学会学術講演会講演予稿集 2009/09/08

  463. AlN薄膜の時間分解フォトルミネッセンス

    尾沼猛儀, 羽豆耕治, 柴田智彦, 小坂圭, 浅井圭一郎, 角谷茂明, 田中光浩, 宗田孝之, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  464. ジエチルセレンを用いたセレン化法によるCu(In,Al)Se2薄膜成長(III)

    藤原千佳, 藁澤萌, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  465. 有機金属を用いたCIGS薄膜太陽電池用ZnSe系バッファ層の成長

    川崎善史, 佐藤友昭, 中西久幸, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集 2009/09/08

  466. m面AlxGa1-xN薄膜の偏光特性の面内異方性歪依存性

    羽豆耕治, 星拓也, 加賀谷宗仁, 尾沼猛儀, 秩父重英

    応用物理学会学術講演会講演予稿集 2009/09/08

  467. m面自立GaN基板上NH3‐MBE成長ホモエピタキシャル薄膜の構造的・光学的特性のV/III比依存性

    羽豆耕治, 星拓也, 加賀谷宗仁, 尾沼猛儀, 藤戸健史, 浪田秀郎, 秩父重英

    応用物理学関係連合講演会講演予稿集 2009/03/30

  468. ヘリコン波励起プラズマスパッタ法によるNiO:Cu薄膜成長

    村田芳綱, 高畑覚, 中西久幸, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集 2009/03/30

  469. Cu(Al,Ga,In)(S,Se)2カルコパイライト型半導体の有機金属化学気相エピタキシャル成長

    秩父重英

    応用物理学関係連合講演会講演予稿集 2009/03/30

  470. ジメチル亜鉛を用いたZn拡散CIGS薄膜太陽電池の作製

    佐藤友昭, 深山敦, DOU X, 中西久幸, 秩父重英, 杉山睦

    応用物理学関係連合講演会講演予稿集 2009/03/30

  471. ヘリコン波励起プラズマスパッタ法成長ZnOエピタキシャル薄膜の励起子ポラリトン発光

    澤井泰, 天池宏明, 尾沼猛儀, 羽豆耕治, 秩父重英

    応用物理学関係連合講演会講演予稿集 2009/03/30

  472. NaフラックスGaN単結晶上へのホモエピタキシャル成長

    尾沼猛儀, 山田高広, 山根久典, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2009

  473. ヘリコン波励起プラズマスパッタエピタキシーによるZn極性ZnO基板上へのホモエピ成長

    澤井泰, 羽豆耕治, 尾沼猛儀, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2009

  474. m面自立GaN基板上AlxGa1-xN薄膜の空間分解陰極線蛍光特性

    羽豆耕治, 加賀谷宗仁, 尾沼猛儀, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2009

  475. m面自立GaN基板上NH3‐MBE成長ホモエピタキシャル薄膜の構造的・光学的特性のV/III比依存性

    加賀谷宗仁, 羽豆耕治, 尾沼猛儀, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2009

  476. AIN価電子帯オーダリングの歪依存性

    宗田孝之, 池田大勝, 尾沼猛儀, 秩父重英

    東北大学多元物質科学研究所研究発表会講演予稿集 2009

  477. m面自立GaN基板上へのAlxGa1-xN薄膜のNH3ソースMBE成長

    星拓也, 羽豆耕治, 大下紘史, 加賀谷宗仁, 藤戸健史, 浪田秀郎, 尾沼猛儀, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  478. Zn極性MgZnO/ZnOヘテロ接合の分子線エピタキシーとキャラクタリゼーション

    赤坂俊輔, 塚崎敦, 湯地洋行, 田村謙太郎, 西本宜央, 高水大樹, 佐々木敦, 藤井哲雄, 中原健, 田辺哲弘, 神澤公, 大友明, 尾沼猛儀, 秩父重英, 川崎雅司

    応用物理学会学術講演会講演予稿集 2008/09/02

  479. ジエチルセレンを用いたセレン化法によるCu(In,Al)Se2薄膜成長(II)

    藤原千佳, 梅澤明央, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  480. Naフラックス法により成長したGaN単結晶の発光特性

    尾沼猛儀, 山田高広, 山根久典, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  481. m面自立GaN基板上に成長したAlxGa1-xN薄膜の偏光・空間分解陰極線蛍光特性

    羽豆耕治, 星拓也, 大下紘史, 加賀谷宗仁, 藤戸健史, 浪田秀郎, 尾沼猛儀, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  482. Cu(Al,In,Ga)Se2薄膜に適したフレキシブル基板の検討

    佐藤友昭, 安庭宗弘, 梅澤明央, 中西久幸, 秩父重英, 杉山睦

    応用物理学会学術講演会講演予稿集 2008/09/02

  483. GaNテンプレート及びバルクZnO基板上へのZnOのHWPSE成長

    天池宏明, 澤井泰, 羽豆耕治, 尾沼猛儀, 小山享宏, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  484. 酸性鉱化剤を用いた安熱合成GaNエピタキシャル層の陰極線蛍光特性

    羽豆耕治, 鏡谷勇二, 尾沼猛儀, 石鍋孝幸, 栗林岳人, 横山千昭, 石黒徹, 福田承生, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  485. p‐NiO/n‐ZnOによるp‐n接合ダイオードの試作

    村田芳綱, WANG L, 藤井健太郎, 高畑覚, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2008/09/02

  486. m面自立GaN基板上へのInGaN薄膜のMOVPE成長

    秩父重英, 山口宏, LU Z, 久保田将司, 岡本國美, 太田裕朗, 尾沼猛儀

    応用物理学関係連合講演会講演予稿集 2008/03/27

  487. 分子線エピタキシー法で成長したZn極性ZnO基板上ZnO膜の時間分解フォトルミネッセンス

    高水大樹, 田村謙太郎, 西本宜央, 佐々木敦, 赤坂俊輔, 湯地洋行, 中原健, 尾沼猛儀, 川崎雅司, 秩父重英

    応用物理学関係連合講演会講演予稿集 2008/03/27

  488. Cu(In,Ga)Se2薄膜のガンマ線照射による影響

    村澤一樹, 安庭宗弘, 梅澤明央, 深山敦, 中西久幸, 秩父重英, 木村真一, 杉山睦

    応用物理学関係連合講演会講演予稿集 2008/03/27

  489. 分子線エピタキシー法(MBE)によるZn極性ZnO基板上MgZnO/ZnOヘテロ構造

    中原健, 湯地洋行, 赤坂俊輔, 田村謙太郎, 西本宜央, 高水大樹, 佐々木敦, 藤井哲雄, 田辺哲弘, 高須秀視, 塚崎敦, 大友明, 天池弘明, 尾沼猛儀, 秩父重英, 川崎雅司

    応用物理学関係連合講演会講演予稿集 2008/03/27

  490. 低転位非極性m面InGaN/GaN多重量子井戸LDの光学利得

    尾沼猛儀, 岡本國美, 太田裕朗, 秩父重英

    応用物理学関係連合講演会講演予稿集 2008/03/27

  491. 塩基性鉱化剤を用いた安熱合成GaNエピタキシャル層の構造および発光特性

    秩父重英, 尾沼猛儀, 橋本忠朗, 藤戸健史, WU F, SPECK J. S, 中村修二

    応用物理学関係連合講演会講演予稿集 2008/03/27

  492. Effects of proton and gamma-ray irradiation on the optical properties of CuInSe2 thin films

    村澤一樹, 安庭宗弘, 木村悠太, 中西久幸, 秩父重英, 木村真一, 杉山睦

    宇宙科学技術連合講演会講演集(CD-ROM) 2008

  493. 陽電子消滅を用いた窒化物光半導体の空孔型欠陥の検出

    上殿明良, 秩父重英

    応用物理学会学術講演会講演予稿集 2007/09/04

  494. ジエチルセレンを用いたセレン化法によるCu(In,Al)Se2薄膜成長

    梅澤明央, 深山敦, 安庭宗弘, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2007/09/04

  495. AlN,GaNにおける貫通転位密度と点欠陥密度の関係

    秩父重英, 小山享宏, 菅原茉莉子, 星拓也, CANTU P, KAEDING J. F, SHARMA R, 小坂圭, 浅井圭一郎, 角谷茂明, 柴田智彦, 田中光浩, 尾沼猛儀, KELLER S, MISHRA U. K, DENBAARS S. P, 中村修二, 宗田孝之, 上殿明良

    応用物理学会学術講演会講演予稿集 2007/09/04

  496. ヘリコン波励起プラズマスパッタ法によるCuAlO2薄膜成長

    今尾隆, 高畑覚, 中西久幸, 杉山睦, 秩父重英

    応用物理学会学術講演会講演予稿集 2007/09/04

  497. 分子線エピタキシー法(MBE)による(Mg)ZnOホモエピタキシー技術

    中原健, 湯地洋行, 田村謙太郎, 赤坂俊輔, 高水大樹, 田辺哲弘, 久保田将司, 尾沼猛儀, 秩父重英, 塚崎敦, 大友明, 川崎雅司

    応用物理学関係連合講演会講演予稿集 2007/03/27

  498. AlN価電子帯オーダリングの歪依存性

    池田大勝, 岡村隆弘, 松川紘大, 小山享宏, 星拓也, 菅原茉莉子, 尾沼猛儀, CANTU P, SHARMA R, KAEDING J.F, KELLER S, SPECK J.S, DENBAARS S.P, 中村修二, MISHRA U.K, 小坂圭, 浅井圭一郎, 角谷茂明, 柴田智彦, 田中光浩, 秩父重英, 宗田孝之

    応用物理学関係連合講演会講演予稿集 2007/03/27

  499. 有機金属を用いたCuInSe2薄膜への亜鉛添加

    深山敦, 木下淳紀, 中西久幸, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  500. MOVPE成長AlN薄膜の発光特性

    尾沼猛儀, 小山享宏, 小坂圭, 浅井圭一郎, 角谷茂明, 柴田智彦, 田中光浩, 宗田孝之, 上殿明良, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  501. 自立GaN基板上への非極性m面GaN及びInGaN薄膜のMOVPE成長

    LU Z, 山口宏, 久保田将司, 岡本國美, 太田裕朗, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  502. ジエチルセレンを用いたセレン化法によるCu(In,Ga)Se2薄膜成長(III)

    安庭宗弘, DEJENE F. B, 木下淳紀, 中西久幸, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  503. AlN薄膜におけるVL発光強度と欠陥密度の相関性

    小山享宏, 菅原茉莉子, 星拓也, CANTU P, KAEDING J.F, SHARMA R, 尾沼猛儀, KELLER S, MISHRA U.K, DENBAARS S.P, 中村修二, 宗田孝之, 上殿明良, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  504. 酸化亜鉛の非輻射過程と点欠陥の関係

    秩父重英, 尾沼猛儀, 塚崎敦, 久保田将司, 大友明, 宗田孝之, 川崎雅司, 上殿明良

    応用物理学関係連合講演会講演予稿集 2007/03/27

  505. ヘリコン波励起プラズマスパッタ法によるZnO:Ga薄膜成長

    政木真悟, 村山聡, 中西久幸, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  506. 低転位非極性m面InxGa1-xN/GaN多重量子井戸LEDの光学的特性

    天池宏明, 久保田将司, 岡本國美, 太田裕朗, 市原淳, 高須秀視, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  507. NH3‐MBE法によりGaNテンプレート上に成長したAlN薄膜の陰極線蛍光特性

    星拓也, 菅原茉莉子, 小山享宏, KAEDING J.F, SHARMA R, 中村修二, 秩父重英

    応用物理学関係連合講演会講演予稿集 2007/03/27

  508. Inを含むIII族窒化物半導体混晶における局在励起子について

    秩父重英, 上殿明良, 尾沼猛儀, HASKELL B. A, CHAKRABORTY A, 小山享宏, FINI P. T, KELLER S, DENBAARS S. P, SPECK J. S, MISHRA U. K, 中村修二, 山口栄雄, 上山智, 天野浩, 赤崎勇, HAN J, 宗田孝之

    応用物理学会学術講演会講演予稿集 2006/08/29

  509. ニオブ添加酸化チタン薄膜の抵抗率に対する熱処理効果

    荒谷毅, 久保田将司, 尾沼猛儀, 小山享宏, 秩父重英

    応用物理学会学術講演会講演予稿集 2006/08/29

  510. MOVPE成長Mg添加p型半極性面(1011)GaNのフォトルミネセンス評価

    尾沼猛儀, 浅水啓州, 佐藤均, KAEDING J. F, IZA M, 小山享宏, FINI P. T, DENBAARS S. P, SPECK J. S, 中村修二, 宗田孝之, 上殿明良, 秩父重英

    応用物理学会学術講演会講演予稿集 2006/08/29

  511. NH3‐MBE成長AlN薄膜の成長温度およびV/III比が光学的特性に与える影響

    小山享宏, 菅原茉莉子, 星拓也, KAEDING J. F, SHARMA R, 尾沼猛儀, KELLER S, MISHRA U. K, DENBAARS S. P, 中村修二, 宗田孝之, 上殿明良, 秩父重英

    応用物理学会学術講演会講演予稿集 2006/08/29

  512. 非極性面GaN系量子井戸構造およびLEDの光学的特性

    秩父重英, 尾沼猛儀, 小山享宏, CHAKRABORTY A, 増井久志, HASKELL B. A, FINI P. T, KELLER S, 草部一秀, 大川和宏, DENBAARS S. P, SPECK J. S, MISHRA U. K, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 2006/08/29

  513. 高温熱処理自己バッファ層(HITAB)を用いたZnOのHWPSE成長

    柴田直之, 小山享宏, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  514. 窒素およびホウ素をドープした6H‐SiC蛍光層の光学特性

    前田智彦, 中村佳博, 生田美奈, 柴田陽子, 村田諭是, 新田州吾, 岩谷素顕, 上山智, 天野浩, 赤崎勇, 吉本昌広, 尾沼猛儀, 秩父重英, 古庄智明, 木下博之

    応用物理学関係連合講演会講演予稿集 2006/03/22

  515. 低温中間層を用いたGaNテンプレート上へのNH3‐MBE法AlN高温成長

    菅原まり子, 小山享宏, KAEDING J. F, SHARMA R, 尾沼猛儀, 中村修二, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  516. MOVPE成長3C‐SiC基板上立方晶GaNの空間分解陰極線蛍光評価

    鈴木智士, 野坂大樹, 山口宏, 尾沼猛儀, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  517. 自立GaN基板上非極性(1100)InxGa1-xN/GaN量子井戸LEDの光学的特性

    小山享宏, 尾沼猛儀, 増井久志, CHAKRABORTY A, HASKELL B. A, MISHRA U. K, SPECK J. S, 中村修二, DENBAARS S. P, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  518. 高温熱処理自己バッファ層(HITAB)を用いたL‐MBE成長Mg0.15Zn0.85Oの温室発光寿命

    久保田将司, 塚崎敦, 尾沼猛儀, 大友明, 宗田孝之, 川崎雅司, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  519. LEO‐GaN上非極性(1100)InxGa1-xN/GaN量子井戸における発光ダイナミクス

    尾沼猛儀, CHAKRABORTY A, HASKELL B. A, 小山享宏, FINI P. T, KELLER S, DENBAARS S. P, SPECK J. S, 中村修二, MISHRA U. K, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  520. 反応性ヘリコン波励起プラズマスパッタ法によるCuAlO2薄膜成長

    佐伯圭太, 今尾隆, 村山聡, 中西久幸, 杉山睦, 秩父重英

    応用物理学関係連合講演会講演予稿集 2006/03/22

  521. ヘリコン波励起プラズマスパッタ法を用いた酸化亜鉛系多層膜構造空間制御による光と物質の結合機構の検討

    秩父重英, 宗田孝之

    応用物理学関係連合講演会講演予稿集 2006/03/22

  522. 安熱合成法によるGaNエピタキシャル層の空間分解陰極線蛍光評価

    秩父重英, 尾沼猛儀, 橋本忠朗, 藤戸健史, SPECK J. S, 中村修二

    応用物理学会学術講演会講演予稿集 2005/09/07

  523. 窒化物半導体混晶中の点欠陥密度と室温発光寿命の関係

    秩父重英, 尾沼猛儀, CHAKRABORTY A, HASKELL B. A, MOE C, KELLER S, DENBAARS S. P, SPECK J. S, 中村修二, MISHRA U. K, 宗田孝之, 上殿明良

    応用物理学会学術講演会講演予稿集 2005/09/07

  524. InGaN量子井戸の偏光カソードルミネッセンス

    宮岡豊, 山本直紀, 秩父重英, 向井孝志

    応用物理学会学術講演会講演予稿集 2005/09/07

  525. LEO‐GaN上無極性(11‐20)InxGa1‐xN/GaN量子井戸における励起子局在

    尾沼猛儀, CHAKRABORTY A, HASKELL B. A, KELLER S, DENBAARS S. P, SPECK J. S, 中村修二, MISHRA U. K, 宗田孝之, 秩父重英

    応用物理学会学術講演会講演予稿集 2005/09/07

  526. HVPE成長Fe添加GaNの半絶縁性に熱処理が与える影響

    久保田将司, 石原裕次郎, 尾沼猛儀, 上殿明良, 碓井彰, 秩父重英

    応用物理学会学術講演会講演予稿集 2005/09/07

  527. 発光波長265nmのAlxInyGa1-x-yN四元多重量子井戸における発光ダイナミクス

    尾沼猛儀, KELLER S, DENBAARS S. P, SPECK J. S, 中村修二, MISHRA U. K, 宗田孝之, 秩父重英

    応用物理学会学術講演会講演予稿集 2005/09/07

  528. 440nm帯ZnO青色発光ダイオード

    塚崎敦, 久保田将司, 大友明, 尾沼猛儀, 大谷啓太, 大野英男, 秩父重英, 川崎雅司

    応用物理学会学術講演会講演予稿集 2005/09/07

  529. ジエチルセレンを用いたセレン化法によるCu(In,Ga)Se2薄膜成長(II)

    杉山睦, DEJENE F. B, 木下淳紀, 深谷真大, 丸義太郎, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 2005/09/07

  530. カルコパイライト型半導体の発光デバイス材料としての特徴―n型ZnO/p型CuGaS2接合LEDを例として―

    秩父重英

    応用物理学関係連合講演会講演予稿集 2005/03/29

  531. ZnOの励起子共鳴波長で動作する誘電体DBRの試作とHWPS法によるSiO2およびZrO2製膜

    小山享宏, 大森拓也, 柴田直之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2005/03/29

  532. レーザMBE成長ZnO薄膜の欠陥制御による高品質化(II)

    久保田将司, 塚崎敦, 尾沼猛儀, 大友明, 宗田孝之, 上殿明良, 川崎雅司, 秩父重英

    応用物理学関係連合講演会講演予稿集 2005/03/29

  533. MOVPE成長3C‐SiC基板上立方晶GaNのフォトルミネッセンススペクトルのV/III比依存性

    鈴木智士, 野坂大樹, 山口宏, 秩父重英

    応用物理学関係連合講演会講演予稿集 2005/03/29

  534. ジエチルセレンを用いたセレン化法によるCu(In,Ga)Se2薄膜成長

    深谷真大, 木下淳紀, 波能康晴, 杉山睦, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 2005/03/29

  535. レーザMBE成長ZnO薄膜の欠陥制御による高品質化(I)

    秩父重英, 塚崎敦, 尾沼猛儀, 大友明, 宗田孝之, 上殿明良, 川崎雅司

    応用物理学関係連合講演会講演予稿集 2005/03/29

  536. LEO‐GaN上無極性(11‐20)InXGa1‐XN量子井戸における発光ダイナミクス

    尾沼猛儀, CHAKRABORTY A, HASKELL B. A, KELLER S, DENBAARS S. P, SPECK J. S, 中村修二, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2005/03/29

  537. ZnOp‐nホモ接合発光ダイオード

    塚崎敦, 大友明, 尾沼猛義, 大谷亮, 牧野哲征, 角谷正友, 大谷啓太, 秩父重英, 鯉沼秀臣

    応用物理学会学術講演会講演予稿集 2004/09/01

  538. 低速陽電子ビームによるInN膜中の空孔型欠陥の検出

    上殿明良, 東脇正高, 松井敏明, 秩父重英

    応用物理学会学術講演会講演予稿集 2004/09/01

  539. HWPS堆積n‐ZnO/MOVPE成長p‐CuGaS2ヘテロ接合LEDの鴬色EL発光

    秩父重英, 大森拓也, 柴田直之, 小山享宏, 尾沼猛儀

    応用物理学会学術講演会講演予稿集 2004/09/01

  540. 塗布熱分解法およびDTBSを用いた硫化法によるCuInS2薄膜の作製

    橋本隆道, 高山直樹, 杉山睦, 中西久幸, 秩父重英, 安藤静敏

    応用物理学会学術講演会講演予稿集 2004/09/01

  541. GaN中の非ふく射再結合中心密度と点欠陥密度の相関関係

    秩父重英, 尾沼猛儀, HASKELL B, 杉山睦, 角谷正友, 奥村元, 宗田孝之, SPECK J, DEN BAARS S

    応用物理学会学術講演会講演予稿集 2004/09/01

  542. ZnOの励起子共鳴波長で動作する誘電体DBRの設計とHWPS法によるSiO2製膜

    小山享宏, 大森拓也, 柴田直之, 秩父重英

    応用物理学会学術講演会講演予稿集 2004/09/01

  543. NH3ガスソースMBE法によるGaNテンプレート上への高温AlN成長

    内沼善将, 菅原まり子, KEADING J F, SHARMA R, 尾沼猛儀, 中村修二, 秩父重英

    応用物理学会学術講演会講演予稿集 2004/09/01

  544. LEO‐GaN上無極性(11<span style=text-decoration:overline>2</span>0)AlxGa1-xN/GaN MQWの偏光光学スペクトル

    鯉田崇, 秩父重英, 宗田孝之, CRAVEN M D, HASKELL B A, SPECK J S, DENBAARS S P, 中村修二

    応用物理学関係連合講演会講演予稿集 2004/03/28

  545. GaNテンプレート基板の熱分解がホモエピタキシャル薄膜に与える影響

    菊地純一, 内沼善将, 鯉田崇, WANG K R, 尾沼猛儀, KEADING J F, SHARMA R, 中村修二, 秩父重英

    応用物理学関係連合講演会講演予稿集 2004/03/28

  546. NH3ガスソースMBE法によるGaNテンプレート上へのホモエピタキシャル成長

    内沼善将, 菊地純一, 鯉田崇, WANG K R, 尾沼猛儀, KEADING J F, SHARMA R, 中村修二, 秩父重英

    応用物理学関係連合講演会講演予稿集 2004/03/28

  547. LEO‐GaN上無極性(11<span style=text-decoration:overline>2</span>0)AlxGa1-xN/GaN MQWの発光ダイナミクス

    鯉田崇, 秩父重英, 宗田孝之, CRAVEN M D, HASKELL B A, SPECK J S, DENBAARS S P, 中村修二

    応用物理学関係連合講演会講演予稿集 2004/03/28

  548. HWPSE法を用いたMg0.06Zn0.94O薄膜のエピタキシャル成長

    大森拓也, 小山享宏, 柴田直之, 尾沼猛儀, 秩父重英

    応用物理学関係連合講演会講演予稿集 2004/03/28

  549. 無極性(11‐20)ZnOエピタキシャル薄膜の光学特性

    鯉田崇, 秩父重英, 上殿明良, 塚崎敦, 宗田孝之, 川崎雅司

    応用物理学会学術講演会講演予稿集 2003/08/30

  550. HWPSE法におけるZnOエピタキシャル薄膜の成長メカニズム

    小山享宏, 大森拓也, 柴田直之, 尾沼猛儀, 秩父重英

    応用物理学会学術講演会講演予稿集 2003/08/30

  551. 立方晶GaN/GaAs基板界面のvoidがMOVPE成長薄膜に及ぼす影響

    野坂大樹, 杉山睦, 中島清美, 青山登代美, 尾沼猛儀, 知京豊裕, 秩父重英

    応用物理学会学術講演会講演予稿集 2003/08/30

  552. Si基板上ZnOエピタキシャル薄膜の光学特性

    尾沼猛儀, 秩父重英, 上殿明良, YOO Y‐Z, 知京豊裕, 宗田孝之, 川崎雅司, 鯉沼秀臣

    応用物理学会学術講演会講演予稿集 2003/08/30

  553. Low‐Energy‐FIBによるGaNナノ構造の作製

    長田貴弘, AHMET P, 鯉田崇, 秩父重英, 知京豊裕

    応用物理学会学術講演会講演予稿集 2003/08/30

  554. AlxGa1‐xN混晶薄膜の発光寿命支配要因

    秩父重英, 上殿明良, 尾沼猛儀, CANTU P, KATONA T, KEADING J F, 鯉田崇, 宗田孝之, MISHRA U K

    応用物理学会学術講演会講演予稿集 2003/08/30

  555. 超格子中間層を用いた立方晶GaN薄膜のMOVPE成長

    杉山睦, 野坂大樹, 鈴木智士, 中島清美, 青山登代美, 尾沼猛儀, 鯉田崇, 知京豊裕, 秩父重英

    応用物理学会学術講演会講演予稿集 2003/08/30

  556. ZnOにおけるブリルアン散乱

    小豆畑敬, 武貞正樹, 八木駿郎, 鹿内周, 秩父重英, 鳥井康介, 中村厚, CANTWELL G, LITTON C W

    応用物理学会学術講演会講演予稿集 2003/08/30

  557. ジエチルセレンを用いたCuInSe2薄膜のセレン化成長 (2)

    山本貴史, 中村元宜, 石附純, 出口隆弘, 安藤静敏, 中西久幸, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  558. HWPSE法によるサファイアA面上へのZnOエピタキシャル成長

    小山享宏, 白浜丈詞, 萩原勝, 尾沼猛儀, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  559. 立方晶GaN薄膜のMOVPE成長における低温緩衝層が及ぼす影響

    杉山睦, 野坂大樹, 中島清美, AHMET P, 青山登代美, 知京豊裕, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  560. アンモニアガスソースMBE法による(0001)サファイア基板上GaN薄膜の成長

    鯉田崇, 寺崎誠也, KEADING J F, 尾沼猛儀, 中村修二, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  561. 塗布熱分解法およびDESeを用いたセレン化法によるCuInSe2薄膜の作製

    高山直樹, 宮地順子, 山本貴史, 中村元宜, 出口隆弘, 中西久幸, 秩父重英, 安藤静敏

    応用物理学関係連合講演会講演予稿集 2003/03/27

  562. Al1-xInxNエピタキシャル薄膜における発光ダイナミクス

    尾沼猛儀, 内沼善将, 秩父重英, 宗田孝之, 山口栄雄, 上山智, 天野浩, 赤崎勇

    応用物理学関係連合講演会講演予稿集 2003/03/27

  563. AlxGa1-xNエピタキシャル薄膜における発光ダイナミクス

    尾沼猛儀, CANTU P, KEADING J F, KELLER S, 鯉田崇, 宗田孝之, DENBAARS S P, MISHRA U K, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  564. 組成傾斜障壁を持つInGaN/GaN量子井戸の発光ダイナミクス

    内沼善将, 尾沼猛儀, SUH E‐K, LEE H J, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2003/03/27

  565. 塗布熱分解法によりMo/glass基板上に作製したCuInSe2薄膜と評価

    宮地順子, 高山直樹, 山本貴史, 塚本恒世, 中西久幸, 秩父重英, 安藤静敏

    応用物理学関係連合講演会講演予稿集 2003/03/27

  566. ZnO単結晶の偏光光学スペクトル

    秩父重英, 宗田孝之, CANTWELL G, EASON D B, LITTON C W

    応用物理学会学術講演会講演予稿集 2002/09/24

  567. 低速陽電子ビームによるZnOの空孔型欠陥の検出

    上殿明良, 鯉田崇, 塚崎敦, 秩父重英, 宗田孝之, 瀬川勇三郎, 鯉沼秀臣, 川崎雅司

    応用物理学会学術講演会講演予稿集 2002/09/24

  568. ZnO単結晶における励起子の非線形光学効果

    羽豆耕治, 中村厚, 宗田孝之, 鈴木克生, 足立智, 秩父重英

    応用物理学会学術講演会講演予稿集 2002/09/24

  569. InGaN MQW 450nm LDにおける局在励起子ダイナミクス

    尾沼猛儀, 秩父重英, 宗田孝之, 長浜慎一, 向井孝志

    応用物理学会学術講演会講演予稿集 2002/09/24

  570. ZnOバルク単結晶及びエピタキシャル薄膜の発光特性比較

    鯉田崇, 秩父重英, 塚崎敦, 上殿明良, 宗田孝之, 瀬川勇三郎, 鯉沼秀臣, 川崎雅司

    応用物理学会学術講演会講演予稿集 2002/09/24

  571. 立方晶InxGa1-xN/GaN量子井戸における発光ダイナミクス

    秩父重英, 尾沼猛儀, 北村寿朗, 宗田孝之, 中村修二, 奥村元

    応用物理学会学術講演会講演予稿集 2002/09/24

  572. ZnO単結晶の偏光反射スペクトルの解析

    鳥井康介, 秩父重英, 宗田孝之, CANTWELL G, EASON D B, LITTON C W

    応用物理学会学術講演会講演予稿集 2002/09/24

  573. Comparison of Emission Properties between Cubic and Hexagonal InGaN. Effects of Polarization Field and Exciton Localization.

    秩父重英, 黒田剛正, 尾沼猛儀, 北村寿朗, 宗田孝之, 竹内淳, DENBAARS S P, 中村修二, 奥村元

    電子情報通信学会技術研究報告 2002/06/14

  574. 減圧MOVPE成長CuAl(SxSe1-x)2エピタキシャル薄膜におけるバンドギャップボーイングと残留歪

    原田佳幸, 中西久幸, 秩父重英

    応用物理学関係連合講演会講演予稿集 2002/03/27

  575. ジエチルセレンを用いたCIS薄膜のセレン化成長

    杉山睦, 大挟正寛, 早川明憲, 水谷勤, 中西久幸, 秩父重英, 根上卓之, 和田隆博

    応用物理学関係連合講演会講演予稿集 2002/03/27

  576. ラマン散乱による3C‐SiC基板上の立方晶InGaNにおける光学フォノンの観察

    鳥井康介, 臼倉奈留, 北村寿朗, 秩父重英, 宗田孝之, 奥村元

    応用物理学関係連合講演会講演予稿集 2002/03/27

  577. カルコパイライト型半導体Sb‐doped CuInS2結晶の結晶成長と評価

    小牧弘典, 吉野賢二, 三宅秀人, 秩父重英, 横山宏有, 前田幸治, 碇哲雄

    応用物理学関係連合講演会講演予稿集 2002/03/27

  578. ZnOエピタキシャル薄膜のフォトリフレクタンススペクトル (2)

    秩父重英, 塚崎敦, 田村謙太郎, 瀬川勇三郎, 宗田孝之, 川崎雅司, 鯉沼秀臣

    応用物理学関係連合講演会講演予稿集 2002/03/27

  579. ZnO薄膜のヘリコン波励起プラズマスパッタエピタキシー

    秩父重英, 吉田丈洋, 尾沼猛儀, 保立倫則, 中西久幸

    応用物理学関係連合講演会講演予稿集 2002/03/27

  580. TEM‐CL法によるInGaN層の発光と格子欠陥

    堀内大吾, GRILLO V, 山本直紀, 秩父重英, 向井孝志

    応用物理学関係連合講演会講演予稿集 2002/03/27

  581. H+打ち込みCuInSe2バルク単結晶のフォトルミネッセンス特性

    山本貴史, 秩父重英, 吉野賢二, YAKUSHEV M, PILKINGTON R D

    応用物理学関係連合講演会講演予稿集 2002/03/27

  582. ZnOエピタキシャル薄膜のフォトリフレクタンススペクトル (1)

    秩父重英, 宗田孝之, FONS P J, 岩田拡也, 山田昭政, 松原浩司, 仁木栄

    応用物理学関係連合講演会講演予稿集 2002/03/27

  583. GaN成長膜中の転位のTEM‐CL評価

    山本直紀, 三田朋宏, 伊東洋嗣, 秩父重英, DENBAARS S. P

    応用物理学会学術講演会講演予稿集 2001/09/11

  584. 立方晶In0.1Ga0.9N量子井戸における励起子局在効果

    秩父重英, 黒田剛正, 杉山睦, 北村寿朗, 尾沼猛儀, 山本貴史, 中西久幸, 宗田孝之, 竹内淳, 石田夕起, 奥村元

    応用物理学会学術講演会講演予稿集 2001/09/11

  585. RF‐MBE法により作製した立方晶AlGaN/GaNヘテロ構造における電気的特性のAl組成依存性

    北村寿朗, SHEN X. Q, 石田夕起, 中西久幸, 秩父重英, 奥村元

    応用物理学会学術講演会講演予稿集 2001/09/11

  586. 緑色‐紫外フォトルミネッセンスを呈する減圧MOVPE成長CuAlxGa1-xS2エピタキシャル薄膜

    原田佳幸, 中西久幸, 秩父重英

    応用物理学会学術講演会講演予稿集 2001/09/11

  587. AIN薄膜の励起子スペクトル

    尾沼猛儀, 秩父重英, 宗田孝之, 浅井圭一郎, 角谷茂明, 柴田智彦, 田中光浩

    応用物理学会学術講演会講演予稿集 2001/09/11

  588. CuGaS2への銅Schottkyコンタクト形成

    杉山睦, 仲井陸郎, 中西久幸, 秩父重英

    応用物理学会学術講演会講演予稿集 2001/09/11

  589. GaNにおける励起子の光学的非線形性と位相緩和

    羽豆耕治, 鹿内周, 宗田孝之, 足立智, 秩父重英, 向井孝志

    日本分光学会講演要旨集 2001/05/10

  590. RF‐MBE法による立方晶InGaN/GaN多重量子井戸構造の光学特性の構造依存性

    鈴木祥仁, 北村寿朗, SHEN X. Q, 石田夕起, 中西久幸, 秩父重英, 奥村元

    応用物理学関係連合講演会講演予稿集 2001/03/28

  591. タンデムファブリ‐ペローを用いたAlNのブリルアン散乱

    山口雅史, 八木駿郎, 古賀雄大, 中村厚, 宗田孝之, 秩父重英, 浅井圭一郎, 中村幸則, 柴田智彦, 田中光浩

    応用物理学関係連合講演会講演予稿集 2001/03/28

  592. AlNのラマン及び赤外活性フォノンの観察 II

    紺野泰正, 古賀雄大, 中村厚, 宗田孝之, 秩父重英, 浅井圭一郎, 中村幸則, 柴田智彦, 田中光浩

    応用物理学関係連合講演会講演予稿集 2001/03/28

  593. カルコパイライト型半導体AgGaxIn1-xS2の結晶成長と評価

    吉野賢二, 梅田研太, 小牧弘典, 碇哲雄, 秩父重英, 中村元宣, 大挟正寛, 中西久幸

    応用物理学関係連合講演会講演予稿集 2001/03/28

  594. InGaNにおける励起子の局在化(1)―圧電効果の小さい量子井戸―

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  595. Cu(Al,Ga)(S,Se)2のバンド不連続量の見積もり

    杉山睦, 中西久幸, 秩父重英

    応用物理学関係連合講演会講演予稿集 2001/03/28

  596. [100]配向高品質β‐FeSi2連続膜の吸収特性

    高倉健一郎, 広井典良, 末益崇, 秩父重英, 長谷川文夫

    応用物理学関係連合講演会講演予稿集 2001/03/28

  597. 陽電子消滅によるGaNの評価(II)―Polarity制御GaN

    上殿明良, 秩父重英, CHEN Z. Q, 角谷正友, 鈴木良一, 大平俊行, 三角智久, 向井孝志, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  598. InGaNにおける励起子の局在化(2)―圧電効果の無い立方晶InGaN薄膜―

    杉山睦, 黒田剛正, 北村寿朗, 山本貴史, 出口隆弘, 中西久幸, 石田夕起, 奥村元, 竹内淳, 宗田孝之, 秩父重英

    応用物理学関係連合講演会講演予稿集 2001/03/28

  599. RF‐MBE法によるAlNバッファを用いた立方晶GaNの作製と電気的特性

    北村寿朗, 鈴木祥仁, SHEN X. Q, 石田夕起, 中西久幸, 秩父重英, 奥村元

    応用物理学関係連合講演会講演予稿集 2001/03/28

  600. 陽電子消滅によるGaNの評価(I)―アンドープ,Si,MgドープGaN

    上殿明良, 秩父重英, CHEN Z. Q, 角谷正友, 鈴木良一, 大平俊行, 三角智久, 向井孝志, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  601. β‐FeSi2半導体の高圧下における光吸収特性 II

    寺西良太, 老沼純, 森嘉久, 財部健一, 末益崇, 長谷川文夫, 秩父重英

    応用物理学関係連合講演会講演予稿集 2001/03/28

  602. アンモニアMBE法におけるGaN膜の結晶性の向上

    大来英之, 嶋田雄二, 鈴木晃, 清水三聡, 中西久幸, 秩父重英, 奥村元

    応用物理学関係連合講演会講演予稿集 2001/03/28

  603. GaNにおける励起子の位相破壊時間の温度依存性

    羽豆耕治, 鹿内周, 宗田孝之, 足立智, 秩父重英, 向井孝志, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  604. 電流変調法によるInGaN単一量子井戸青/緑色発光ダイオードの評価

    小豆畑敬, 本間健史, 秩父重英, 宗田孝之, 向井孝志, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  605. GaNにおける縮退四光波混合シグナルの励起波長依存性

    羽豆耕治, 鹿内周, 宗田孝之, 足立智, 秩父重英, 向井孝志, 中村修二

    応用物理学関係連合講演会講演予稿集 2001/03/28

  606. Optical absorption of .BETA.-FeSi2 under high pressure.

    寺西良太, 老沼純, 森嘉久, 財部健一, 末益崇, 長谷川文夫, 秩父重英

    高圧討論会講演要旨集 2000/10/20

  607. Ga過剰条件MBE成長CuGaSe2エピタキシャル薄膜の酸素アニール効果

    西尾明彦, 山田昭政, 仁木栄, FONS Paul, 大柳宏之, 中西久幸, 秩父重英

    応用物理学会学術講演会講演予稿集 2000/09/03

  608. GaNのATRスペクトル

    鳥井康介, 臼倉奈留, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 2000/09/03

  609. Polarity制御GaN薄膜の光学的特性

    瀬戸口晶子, 吉村克彦, 角谷正友, 秩父重英

    応用物理学会学術講演会講演予稿集 2000/09/03

  610. Si基板上のZnS薄膜の高温成長と酸化による特性変化考察

    YOO Y. Z, 知京豊裕, 福村知昭, JIN Z. W, 瀬戸口晶子, 秩父重英, 川崎雅司, 鯉沼秀臣

    応用物理学会学術講演会講演予稿集 2000/09/03

  611. CAICISSによる3元混晶InxGA1-xN SQWsの構造解析

    角谷正友, 水野敬介, 古澤光康, 吉本護, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 2000/09/03

  612. InGaN/AlGaN単一量子井戸紫外発光ダイオードの分光学的評価(1)

    出口隆弘, 鳥井康介, 島田和宏, 宗田孝之, 松尾隆二, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 2000/03/28

  613. R面サファイア上A面AlNエピタキシャル膜のX線解析

    中村厚, 松尾隆二, 宗田孝之, 秩父重英, 浅井圭一郎, 中村幸則, 柴田智彦

    応用物理学関係連合講演会講演予稿集 2000/03/28

  614. AlNのラマン及び赤外活性フォノンの観察

    古賀雄大, 小野将之, 鳥井康介, 小豆畑敬, 宗田孝之, 秩父重英, 浅井圭一郎, 中村幸則, 柴田智彦

    応用物理学関係連合講演会講演予稿集 2000/03/28

  615. InGaN/AlGaN単一量子井戸紫外発光ダイオードの分光学的評価(2)

    瀬戸口晶子, 和田一実, 仲井陸郎, 鳥井康介, 出口隆弘, 中西久幸, 秩父重英, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 2000/03/28

  616. GaN単一量子井戸による光励起による内部電場遮蔽のダイナミクス

    鹿内周, 羽豆耕治, 出口隆弘, 黒田剛正, 竹内淳, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1999/09/01

  617. Si添加InGaNにおけるキャリア緩和の温度依存性

    鹿内周, 羽豆耕治, 黒田剛正, 竹内淳, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1999/09/01

  618. CuInSe2薄膜における成長その場Se空孔制御

    内野学, 仁木栄, FONS P J, 山田昭政, 大柳宏之, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 1999/09/01

  619. 無添加,およびSi添加InGaNにおける吸収飽和

    鹿内周, 羽豆耕治, 黒田剛正, 竹内淳, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1999/09/01

  620. LEO成長GaN基板のフォトリフレクタンススペクトル

    秩父重英, 鳥井康介, 出口隆弘, 瀬戸口晶子, 仲井陸郎, 杉山睦, 中西久幸, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1999/09/01

  621. GaN/AlGaN単一量子井戸における量子閉じ込めシュタルク効果

    出口隆弘, 山本政, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  622. RF MBEによるInGaN三元混晶成長

    CHO S H, 奥村元, 江井智康, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1999/03/28

  623. GaN基板の光学フォノン II

    小豆畑敬, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  624. MBE成長CuGaSe2/GaAsの輸送特性とその評価における障害

    山田昭政, 小田島大介, FONS P, 仁木栄, 大柳宏之, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1999/03/28

  625. LEO‐GaN上に成長したGaN単膜,InGaN量子井戸の光学的特性

    瀬戸口晶子, 秩父重英, MARCHAND H, MINSKY M, DENBAARS S, ROSNER J, 出口隆弘, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  626. Si添加障壁層を有するInGaN量子井戸の光学的特性

    杉山陸, 秩父重英, MINSKY M, ABARE A, MACK M, DENBAARS S, 出口隆弘, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  627. CuIn3Se5薄膜における禁制帯幅の組成依存性

    水谷勤, 杉山睦, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1999/03/28

  628. InGaN量子井戸における電界効果とエネルギーギャップ不均一性

    秩父重英, 和田一実, ABARE A, MINSKY M, DENBAARS S, 出口隆弘, 鳥井康介, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  629. AgIn(SySe1-y)2の光学特性

    杉山睦, 曽雌孝宏, 秩父重英, 中西久幸, 三谷直司, 吉野賢二, 碇哲雄

    応用物理学関係連合講演会講演予稿集 1999/03/28

  630. MBE成長GaNエピ膜の電気的特性に対する窒素フラックス変調操作の効果

    高平忍, 秩父重英, 中西久幸, 奥村元, BALAKRISHNAN K

    応用物理学関係連合講演会講演予稿集 1999/03/28

  631. CuInSe2エピタキシャル薄膜の成長温度依存性

    藍陽介, 仁木栄, 内野学, FONS P J, LACROIX Y, 山田昭政, 大柳宏之, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1999/03/28

  632. GaNにおけるRashba‐Sheka‐Pikus価電子帯パラメータ

    鳥井康介, 出口隆弘, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  633. CuInSe2エピタキシャル薄膜におけるCu‐Se異相とアニール効果 (II)

    内野学, 仁木栄, 藍陽介, FONS P J, 山田昭政, LACROIX Y, 大柳宏之, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1999/03/28

  634. InGaN/AlGaN単一量子井戸のゲインスペクトロスコピー

    出口隆弘, 山本政, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1999/03/28

  635. h‐GaNのブリルアン散乱 II

    山口雅史, 八木駿郎, 出口隆弘, 島田和宏, 宗田孝之, 鈴木克生, 秩父重英, 中村修二

    日本物理学会講演概要集 1998/09/05

  636. Optical phonons in GaN substrates.

    小豆畑敬, 小野将之, 利川豪舜, 宗田孝之, 鈴木克生, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1998/09

  637. Brillouin scattering study on GaN using Tandem Fabry-Perot interferometer. II.

    山口雅史, 八木駿郎, 出口隆弘, 島田和宏, 宗田孝之, 鈴木克生, 小豆畑敬, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1998/09

  638. In-situ irradiation of radical beams during the MBE growth of CuInSe2.

    仁木栄, 内野学, FONS P J, LACROIX Y, 山田昭政, 岩田拡也, 大柳宏之, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 1998/09

  639. Annealing effects of Cu-Se second phase grown on CuInSe2 epitaxial films.

    内野学, 仁木栄, 山田昭政, FONS P J, LACROIX Y, 岩田拡也, 藍陽介, 小田島大介, 秩父重英

    応用物理学会学術講演会講演予稿集 1998/09

  640. Optical property of GaN substrate. (1).

    鳥井康介, 出口隆弘, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1998/09

  641. Time-resolved spectroscopy of InGaN. (1).

    鹿内周, 秩父重英, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1998/03

  642. Vacancy defects and effects of annealing on CuInSe2 epitaxial films grown by molecular beam epitaxy.

    仁木栄, 内野学, FONS P, 山田昭政, LACROIX Y, 酒井夏子, 横川晴美, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1998/03

  643. Optical properties of InGaN. (8).

    出口隆弘, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1998/03

  644. Relation between surface reconstruction transitions and As flux intensity for c-GaN surfaces grown under excess As flux.

    浜口寛, FEUILLET G, 奥村元, 石田夕起, 秩父重英, 中西久幸, 吉田貞史

    応用物理学関係連合講演会講演予稿集 1998/03

  645. Optical properties of InGaN. (9).

    出口隆弘, 宗田孝之, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1998/03

  646. Optical properties of InGaN. (10).

    鳥井康介, 秩父重英, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1998/03

  647. Optical properties of InGaN. (7).

    出口隆弘, 小豆畑敬, 宗田孝之, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1997/10

  648. Optical absorption spectra of CuGaSe2 thin-films grown by MBD method.

    内野学, 新谷英史, 水谷勤, 秩父重英, 中西久幸, 仁木栄, FONS P J, 山田昭政

    応用物理学会学術講演会講演予稿集 1997/10

  649. Two-phonon absorption spectra and lattice dynamics in CuAlSe2.

    渡辺宗久, 小豆畑敬, 宗田孝之, 秩父重英, 鈴木克生

    応用物理学会学術講演会講演予稿集 1997/10

  650. Optical properties of InGaN. (6).

    出口隆弘, 小豆畑敬, 宗田孝之, 秩父重英, 有田正樹, 中村修二

    応用物理学会学術講演会講演予稿集 1997/10

  651. Growth of c-GaN using As surfactant effect.

    浜口寛, 多田健司, BALAKRISHNAN K, 奥村元, 秩父重英, 中西久幸, 吉田貞史

    応用物理学会学術講演会講演予稿集 1997/10

  652. Lattice dynamics in CuAlSe2.

    渡辺宗久, 小豆畑敬, 宗田孝之, 秩父重英, 鈴木克生

    日本物理学会講演概要集(分科会) 1997/09

  653. Optical properties of h-GaN/Sapphire grown by MOCVD. VIII. Time-resolved spectroscopy. (1).

    出口隆弘, 小豆畑敬, 宗田孝之, 秩父重英, 猿倉信彦, 大竹秀幸, 山中孝弥, 中村修二

    応用物理学関係連合講演会講演予稿集 1997/03

  654. Optical properties of InGaN. (5).

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1997/03

  655. Room-temperature near-band-edge PL from CuInSe2 heteroepitaxial layers grown by MOVPE.

    水谷勤, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1997/03

  656. Localisation of excitons in InGaN quantum well structures.

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1997/03

  657. Urbach's tails of widegap compound semiconductors. (1). h-GaN.

    水谷勤, 塩田剛史, 秩父重英, 中西久幸, 出口隆弘, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1997/03

  658. Photoreflectance and photoluminescence spectra of tensile-strained h-GaN.

    秩父重英, 小豆畑敬, 宗田孝之, 天野浩, 赤崎勇

    応用物理学関係連合講演会講演予稿集 1997/03

  659. Growth of high quality cubic GaN and AlGaN epilayers by RF-MBE.

    白井啓一, 浜口寛, 太田一生, BALAKRISHNAN K, 奥村元, 秩父重英, 中西久幸, 石田夕起, 吉田貞史

    応用物理学関係連合講演会講演予稿集 1997/03

  660. CuInSe2 thin films grown by alternate deposition method.

    八巻譲, 塩田剛史, 秩父重英, 入江泰三, 中西久幸

    応用物理学関係連合講演会講演予稿集 1997/03

  661. Function layers of CIS system thin film solar cells grown by helicon wave plasma sputtering. (II). ZnO:Al.

    八巻譲, 山谷一史, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1997/03

  662. Arsenic surfactant effect for the growth of GaN.

    浜口寛, 太田一生, BALAKRISHNAN K, 奥村元, 秩父重英, 中西久幸, 吉田貞史

    応用物理学関係連合講演会講演予稿集 1997/03

  663. Initial Stage of Hexagonal GaN Growth on Sapphire by RF-MBE.

    八百枝徹, BALAKRISHNAN K, 奥村元, 秩父重英, 中西久幸, 吉田貞史

    応用物理学関係連合講演会講演予稿集 1997/03

  664. Optical properties of h-GaN/sapphire grown by MOCVD: VII. Absorption spectroscopy. (2).

    出口隆弘, 小豆畑敬, 秩父重英, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1996/09

  665. Surface reconstruction of cubic GaN on 3C-SiC.

    浜口寛, FEUILLET G, 奥村元, 秩父重英, 中西久幸, 吉田貞史

    応用物理学会学術講演会講演予稿集 1996/09

  666. Optical properties of InGaN. (2).

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1996/09

  667. Photoreflectance and photoluminescence spectra of cubic and hexagonal GaN.

    秩父重英, 奥村元, FEUILLET G, 浜口寛, 中村修二, 吉田貞史

    応用物理学会学術講演会講演予稿集 1996/09

  668. Attempt to grow functional layers of CIS system thin film solar cells using helicon wave plasma.

    山谷一史, 塩田剛史, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 1996/09

  669. Optical properties of InGaN. (3).

    筒井宏次, 小豆畑敬, 秩父重英, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1996/09

  670. Electroreflectance in CuInSe2 Single Crystals.

    白方祥, 秩父重英, 中西久幸, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1996/09

  671. Optical properties of InGaN. (4).

    五十嵐隆史, 小豆畑敬, 秩父重英, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1996/09

  672. Growth of ZnInGaS4 films by multi-source time-sequential evaporation apparatus.

    万場則夫, 塩田剛史, 秩父重英, 入江泰三, 中西久幸

    応用物理学会学術講演会講演予稿集 1996/09

  673. Lattice strain in MOVPE-grown Cu-III-VI2 epitaxial films.

    白方祥, 秩父重英, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1996/09

  674. MOVPE of I-III-VI2 chalcopyrite semiconductors.

    秩父重英, 白方祥, 中西久幸

    応用物理学会学術講演会講演予稿集 1996/09

  675. Optical properties of InGaN. (1).

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1996/09

  676. CuInSe2 thin films grown using multi-source time-sequential evaporation apparatus.

    塩田剛史, 万場則夫, 山谷一史, 秩父重英, 入江泰三, 中西久幸

    応用物理学会学術講演会講演予稿集 1996/09

  677. A study on absorption spectra of CuInSe2 films.

    鹿内周, 宗田孝之, 鈴木克生, 秩父重英, 中西久幸, FONS P, 山田昭政, 仁木栄

    応用物理学関係連合講演会講演予稿集 1996/03

  678. Exciton energies of CuInSe2 films grown by MBE and MBD.

    秩父重英, 仁木栄, 倉藤崇, 芳賀清顕, 山谷一史, FONS P, 山田昭政, 中西久幸

    応用物理学関係連合講演会講演予稿集 1996/03

  679. Photoreflectance spectra of h-GaN grown by MOCVD. (2).

    小豆畑敬, 秩父重英, 宗田孝之, 鈴木克生

    応用物理学関係連合講演会講演予稿集 1996/03

  680. Brillouin Scattering Study of h-GaN using Tandem Fabry--Perot interferometer.

    山口雅史, 小豆畑敬, 宗田孝之, 鈴木克生, 秩父重英, 中村修二, 八木駿郎

    日本物理学会講演概要集(年会) 1996/03

  681. Epitaxial growth of CuGaSe2 and CuAlSe2 on the THM-CuGa0.96In0.04Se2 substrated. II. Optical properties.

    白方祥, 秩父重英, 三宅秀人, 磯村滋宏, 中西久幸, 杉山耕一

    応用物理学関係連合講演会講演予稿集 1996/03

  682. Characterization of CuInSe2 epitaxial films grown on pseudo lattice-matched substrates.

    仁木栄, 倉藤崇, FONS P J, 山田昭政, 牧田雄之助, 秩父重英, 中西久幸, BI W, TU C W

    応用物理学関係連合講演会講演予稿集 1996/03

  683. Structural analysis of CuInSe2 epitaxial films by means of high power X-ray diffraction.

    水谷勤, FONS P, 仁木栄, 秩父重英, 中西久幸, 山田昭政, 牧田雄之助

    応用物理学関係連合講演会講演予稿集 1996/03

  684. Photoreflectance spectra of h-GaN grown by MOCVD. (1).

    秩父重英, 小豆畑敬, 倉又朗人, 堀野和彦, 宗田孝之, 中村修二

    応用物理学関係連合講演会講演予稿集 1996/03

  685. Epitaxial growth of CuGaSe2 and CuAlSe2 on the THM-CuGa0.96In0.04Se2 substrates. I. MOCVD.

    秩父重英, 白方祥, 三宅秀人, 杉山耕一, 磯村滋宏, 中西久幸

    応用物理学関係連合講演会講演予稿集 1996/03

  686. Brillouin Scattering Study of GaN using Tandem Fabry-Perot interferometer.

    山口雅史, 小豆畑敬, 宗田孝之, 鈴木克生, 秩父重英, 中村修二, 八木駿郎

    応用物理学関係連合講演会講演予稿集 1996/03

  687. Growth of ZnInGaS4 Single Crystals by Vertical Bridgman Method.

    高橋昭, 秩父重英, 高橋正郎, 武井隆太郎, 万場則夫, 入江泰三, 中西久幸

    応用物理学会学術講演会講演予稿集 1995/08

  688. Optical properties of h-GaN/Sapphire grown by MOCVD: V. Photoluminescence Spectroscopy.

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1995/08

  689. Urbach's tails in the absorption spectra of CuInSe2 single crystals.

    塩田剛史, 石川丈介, 木村宣隆, 山谷一史, 秩父重英, 刈谷哲也, 遠藤三郎, 入江泰三, 中西久幸

    応用物理学会学術講演会講演予稿集 1995/08

  690. Optical properties of CuInSe2 thin films grown by MBE. (IV).

    倉藤崇, 仁木栄, 牧田雄之助, 山田昭政, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 1995/08

  691. Crystal Growth and Optical Properties of Quaternary wide-gap Compounds.

    安藤静敏, 秩父重英, 塚本恒世, 遠藤三郎, 中西久幸, 入江泰三

    応用物理学会学術講演会講演予稿集 1995/08

  692. Optical properties of h-GaN/Sapphire grown by MOCVD: VI. Absorption spectroscopy.

    小豆畑敬, 古田紀文, 鹿内周, 宗田孝之, 鈴木克生, 秩父重英, 中村修二

    応用物理学会学術講演会講演予稿集 1995/08

  693. Optical absorption of CuInSe2/7059 glass grown by MBE. (II).

    石川丈介, 倉藤崇, 芳賀清顕, 牧田雄之助, 仁木栄, 秩父重英, 中西久幸

    応用物理学会学術講演会講演予稿集 1995/08

  694. Melt growth of AgGaS2. (II).

    脇山俊士, 松本智, 秩父重英

    応用物理学会学術講演会講演予稿集 1995/08

  695. Visible and UV photoluminescences from CuAlS2 epilayers.

    秩父重英, 小豆畑敬, 白方祥, 芳賀清顕, 宗田孝之, 中西久幸

    応用物理学会学術講演会講演予稿集 1995/08

  696. Growth and properties of CuInSe2 epitaxial films grown on nearly lattice-matched substrates.

    仁木栄, 倉藤崇, 山田昭政, 牧田雄之助, 秩父重英, 中西久幸, BI W, TU C W

    応用物理学会学術講演会講演予稿集 1995/08

  697. Optical properties of h-GaN/Sapphire grown by MOCVD: IV. Photoreflectance Spectroscopy. (2).

    秩父重英, 小豆畑敬, 宗田孝之, 中村修二

    応用物理学会学術講演会講演予稿集 1995/08

  698. X-ray Photoelectron Spectroscopy Anarysis of CdS/CdInGaS4.

    万場則夫, 秩父重英, 高橋正郎, 高橋昭, 武井隆太郎, 中西久幸, 入江泰三

    応用物理学会学術講演会講演予稿集 1995/08

  699. Optical absorption of CuInSe2/7059glass grown by MBE.

    石川丈介, 和田哲也, 倉藤崇, 芳賀清顕, 牧田雄之助, 仁木栄, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1995/03

  700. Optical properties of h-GaN/Sapphire grown by MOCVD: I. Raman spectroscopy.

    小豆畑敬, 宗田孝之, 鈴木克生, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1995/03

  701. Optical properties of h-GaN/Sapphire grown by MOCVD: II. Infrared spectroscopy.

    松永知道, 小豆畑敬, 宗田孝之, 鈴木克生, 秩父重英, 中村修二

    応用物理学関係連合講演会講演予稿集 1995/03

  702. Spectroscopic Characterizations of MOCVD-Grown CuGaS2.

    白方祥, 秩父重英, 磯村滋宏, 中西久幸

    応用物理学関係連合講演会講演予稿集 1995/03

  703. LP-MOCVD growth of CuAlxGa1-xSe2. (II).

    秩父重英, 白方祥, 刈谷哲也, 森貴朗, 原田佳幸, 芳賀清顕, 樋口博文, 中西久幸, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1995/03

  704. PL characterization of CuGaSe2 thin films grown by MBE.

    山田昭政, 河合倫大, 神頭卓司, 牧田雄之助, 仁木栄, 小原明, 秩父重英, 中西久幸, 入江泰三

    応用物理学関係連合講演会講演予稿集 1995/03

  705. Optical Properties of CuInSe2 thin films grown by MBE. (III).

    倉藤崇, 仁木栄, 牧田雄之助, 山田昭政, 秩父重英, 中西久幸

    応用物理学関係連合講演会講演予稿集 1995/03

  706. Optical properties of h-GaN/Sapphier grown by MOCVD: III. Photoreflectance Spectroscopy.

    秩父重英, 宗田孝之, 小豆畑敬, 中村修二

    応用物理学関係連合講演会講演予稿集 1995/03

  707. DOS in p-CuInSe2 Measured by Modulated Photocurrent Method.

    塩田剛史, 竹嶋基浩, 秩父重英, 中西久幸, 入江泰三

    応用物理学関係連合講演会講演予稿集 1995/03

  708. CuAlSe2薄膜のEXAFSによる研究

    山口博隆, 岡田安正, 秩父重英, 大柳宏之

    日本放射光学会年会予稿集 1995/01

  709. Raman scattering in CuAlSe2.

    小豆畑敬, 宗田孝之, 鈴木克生, 内田盟, 松本智, 秩父重英

    応用物理学会学術講演会講演予稿集 1994/09

  710. Blue Emission of ZnInGaS4 Single Crystals Grown by Iodine CVT.

    高橋昭, 高橋正郎, 秩父重英, 湯本久美, 中西久幸, 遠藤三郎, 入江泰三

    応用物理学会学術講演会講演予稿集 1994/09

  711. Lattice dynamics of CuAlS2 and CuAlSe2.

    小豆畑敬, 宗転孝之, 鈴木克生, 秩父重英

    日本物理学会講演概要集(分科会) 1994/09

  712. Optical properties of CuInSe2 thin films grown by MBE. (II).

    倉藤崇, 仁木栄, 中西久幸, 秩父重英, 牧田雄之助, 山田昭政, 小原明

    応用物理学会学術講演会講演予稿集 1994/09

  713. Optical properties of CuGaSe2 Ga-rich thin films grown by MBE.

    河合倫大, 山田昭政, 牟田高信, 神頭卓司, 中西久幸, 秩父重英, 牧田雄之助, 入江泰三, 轡田昇

    応用物理学会学術講演会講演予稿集 1994/09

  714. LP-MOCVD growth of CuAlS2.

    秩父重英, 白方祥, 内田盟, 原田佳幸, 芳賀清顕, 脇山俊士, 中山憲吾, 樋口博文, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1994/09

  715. Dry passivation of GaAs surface using dialkylselenide.

    吉田信秀, 秩父重英, 茜俊光, 宇治博史, 戸塚正裕, 内田盟, 松本智, 樋口博文

    応用物理学関係連合講演会講演予稿集 1994/03

  716. TEM observation of chalcopyrite semiconductor epilayers.

    原田佳幸, 秩父重英, 内田盟, 脇山俊士, 松本智, 樋口博文

    応用物理学関係連合講演会講演予稿集 1994/03

  717. Photoluminescences in CuAlSe2 epilayers grown by LP-MOCVD.

    秩父重英, 白方祥, 樋口博文, 松本智, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1994/03

  718. LP-MOCVD growth of CuGaS2.

    秩父重英, 白方祥, 内田盟, 原田佳幸, 脇山俊士, 松本智, 樋口博文, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1994/03

  719. Si1-xGex/Si structures produced by ArF excimer laser mixing.

    梅川将, 茜俊光, 宇治博史, 秩父重英, 松本智, 樋口博文

    応用物理学関係連合講演会講演予稿集 1994/03

  720. Melt growth of AgGaS2.

    脇山俊士, 秩父重英, 須藤亮, 内田盟, 原田佳幸, 松本智

    応用物理学関係連合講演会講演予稿集 1994/03

  721. Dry passivation of GaAs surface in H2S gas ambient.

    吉田信秀, 秩父重英, 茜俊光, 戸塚正裕, 宇治博史, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  722. Photoreflectance Studies in Chalcopyrite Compounds. (IV). Characterization of MOCVD-grown CuAlSe2. (II).

    白方祥, 秩父重英, 磯村滋宏, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  723. Iodine chemical vapor transport of Cu(AlxGa1-x)SSe. (II).

    須藤亮, 小川明宏, 秩父重英, 白方祥, 脇山俊士, 松本智, 磯村滋宏, GUPUTA A

    応用物理学会学術講演会講演予稿集 1993/09

  724. LP-MOCVD growth of Cu(AlxGa1-x)Se2.

    原田佳幸, 秩父重英, 白方祥, 須藤亮, 内田盟, 脇山俊士, 樋口博文, 松本智, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1993/09

  725. LP-MOCVD growth of CuGaSe2.

    内田盟, 秩父重英, 白方祥, 須藤亮, 原田佳幸, 脇山俊士, 樋口博文, 松本智, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1993/09

  726. Raman spectra in CuAlSe2 heteroepitaxial layers growth by LP-MOCVD.

    秩父重英, 内田盟, 松本智, 鎌田敦之

    応用物理学会学術講演会講演予稿集 1993/09

  727. Excimer laser doping of P using tertiarybutylphosphine.

    茜俊光, 宇治博史, 梅川将, 秩父重英, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  728. Low temperature growth of poly-Si.

    宇治博史, 茜俊光, 梅川将, 秩父重英, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  729. XPS study of valence band discontinuities at CuGaSe2/CuAlSe2 heterointerface.

    須藤亮, 秩父重英, 吉田信秀, 内田盟, 原田佳幸, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  730. Photoreflectance and Photoluminescence Studies of CuAl(SySe1-y)2 Alloys.

    小川明宏, 須藤亮, 白方祥, 秩父重英, 磯村滋宏, 松本智

    応用物理学会学術講演会講演予稿集 1993/09

  731. Fabrication of a-SiGe:H,C films using Ge(C2H5)4. (II). Impurity doping.

    石原不二夫, 宇治博史, 秩父重英, 松本智

    応用物理学関係連合講演会講演予稿集 1993/03

  732. LP-MOCVD growth of CuAlSe2. (IV). Impurity doping. (1).

    秩父重英, 白方祥, 岩井昭佳, 須藤亮, 内田盟, 原田佳幸, 樋口博文, 松本智, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1993/03

  733. Photoreflectance and Photoluminescence Studies in CuAlxGa1-xSe2.

    小川明宏, 須藤亮, 白方祥, 秩父重英, 松本智, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1993/03

  734. Photoluminescence in MOCVD-grown CuAlSe2 epitaxial layers.

    白方祥, 秩父重英, 松本智, 磯村滋宏

    応用物理学関係連合講演会講演予稿集 1993/03

  735. CuAlxGa1-xSe2のフォトリフレクタンスとフォトルミネッセンス

    小川明宏, 須藤亮, 白方祥, 秩父重英, 松本智, 磯村滋宏

    電気関係学会四国支部連合大会講演論文集 1993

  736. LP-MOCVD growth of CuAlSe2. (II)-Grwoth condition and structual study.

    秩父重英, 白方祥, 岩井昭佳, 須藤亮, 内田盟, 原田佳幸, 樋口博文, 松本智, 磯村滋宏

    応用物理学会学術講演会講演予稿集 1992/09

  737. Vapor growth of Cu.

    秩父重英, 岩井昭佳, 須藤亮, 内田盟, 原田佳幸, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1992/09

  738. Photoreflectance Studies in Chalcopyrite Compounds. (III). Characteriztion of MOCVD-Grown CuAlSe2.

    白方祥, 秩父重英, 磯村滋宏, 松本智

    応用物理学会学術講演会講演予稿集 1992/09

  739. LP-MOCVD growth of CuAlSe2. (III)-Electrical and optical properties.

    岩井昭佳, 秩父重英, 須藤亮, 内田盟, 原田佳幸, 樋口博文, 松本智

    応用物理学会学術講演会講演予稿集 1992/09

  740. LP-MOCVD growth of Si-doped GaAs using tertiarybutylarsine and its characterization by a monoenergetic slow positron beam.

    秩父重英, WEI L, 岩井昭佳, 中原寧, 樋口博文, 松本智, 谷川庄一郎

    応用物理学会学術講演会講演予稿集 1992/09

  741. As doping of Si by ArF excimer laser irradiation using tertiarybutylarsine.

    秩父重英, 二井隆博, 茜俊光, 松本智

    応用物理学関係連合講演会講演予稿集 1992/03

  742. Controling Dopant Concentration Profile in Excimer Laser Doping.

    茜俊光, 二井隆博, 秩父重英, 松本智

    応用物理学関係連合講演会講演予稿集 1992/03

  743. LP-MOCVD growth of CuAlSe2.

    秩父重英, 岩井昭佳, 中原寧, 松本智, 樋口博文

    応用物理学関係連合講演会講演予稿集 1992/03

  744. Growth of Cu(AlxGa1-x)(S0.5Se0.5)2 by iodine chemical vapor transport.

    秩父重英, 宍倉正人, 須藤亮, 松本智

    応用物理学関係連合講演会講演予稿集 1992/03

  745. Resistivity Reduction of VB ZnSe by Molten Zn Treatment.

    岩井昭佳, 大井鋼一郎, 秩父重英, 松本智, 吉田博昭, 鎌田敦之

    応用物理学関係連合講演会講演予稿集 1992/03

  746. Heavy Si doping in LP-MOCVD grown GaAs for TMGa:tBAs system.

    秩父重英, 岩井昭佳, 松本智, 樋口博文

    応用物理学会学術講演会講演予稿集 1991/10

  747. Properties of CuAl(SxSe1-x)2 systems grown by iodine transport method.

    宍倉正人, 須藤亮, 秩父重英, 松本智

    応用物理学会学術講演会講演予稿集 1991/10

  748. Outdiffusion of EL2 in thermally annealed LEC GaAs crystals.

    緒方順造, 岩井昭佳, 秩父重英, 松本智

    応用物理学関係連合講演会講演予稿集 1991/03

  749. Properties of CuAlSe2 grown by iodine CVT: (2) absorbtion and photoluminescence.

    秩父重英, 宍倉正人, 井野淳介, 松本智

    応用物理学関係連合講演会講演予稿集 1991/03

  750. Properties of CuAlSe2 grown by iodine CVT:(1) structure and doping.

    秩父重英, 宍倉正人, 井野淳介, 松本智

    応用物理学関係連合講演会講演予稿集 1991/03

  751. Low temperature performance of ultra-high speed SA-CM InGaAsP/InP lasers.

    秩父重英, 平山雄三, 森永素安, 鈴木信夫

    電子情報通信学会全国大会講演論文集 1989/09

  752. GaNに格子整合するc面AlInN薄膜の室温フォトルミネッセンス寿命

    李リヤン,嶋紘平, 山中瑞樹, 江川孝志, 竹内哲也, 三好実人, 石橋章司, 上殿明良, 秩父重英

    第77回応用物理学会東北支部学術講演会 2022/12/02

  753. Striped and fin-shaped cation orderings and self-formed compositional superlattices in an m-plane Al0.7In0.3N on GaN heterostructure International-presentation

    S. F. Chichibu, K. Shima, K. Kojima, Y. Kangawa

    The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT2021) 2021/03/01

  754. 全方位フォトルミネセンス (ODPL) 分光法を用いた半導体結晶の評価 Invited

    小島一信, 秩父重英

    The 40th annual NANO testing symposium 2020/11/16

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Industrial Property Rights 15

  1. 結晶製造用圧力容器

    栗本浩平, 包全喜, 植田睦男, 笹川雄二, 森元雅也, 石黒徹, 秩父重英

    米国特許第11,746,439B2号

    Property Type: Patent

    Holder: 株式会社日本製鋼所,国立大学法人東北大学

  2. 結晶製造用圧力容器

    栗本浩平, 包全喜, 植田睦男, 笹川雄二, 森元雅也, 石黒徹, 秩父重英

    中国特許第ZL201880023029.8号

    Property Type: Patent

    Holder: 株式会社日本製鋼所,国立大学法人東北大学

  3. 結晶製造用圧力容器

    栗本浩平, 包全喜, 植田睦男, 笹川雄二, 森元雅也, 石黒徹, 秩父重英

    特許第6931827号

    Property Type: Patent

    Holder: 株式会社日本製鋼所,国立大学法人東北大学

  4. 中性子半導体検出構造、中性子半導体検出器、及び中性子半導体検出構造の製造方法

    中野孝之, 秩父重英, 小島一信

    特許6856214

    Property Type: Patent

    Holder: 国立大学法人静岡大学、国立大学法人東北大学

  5. 二次電池

    殿川 孝司, 小坂 裕, 津國 和之, 高野 光, 秩父 重英, 小島 一信

    Property Type: Patent

  6. 光触媒

    板原 浩, 今川 晴雄, 佐藤 次雄, 殷 シュウ, 呉 暁勇, 秩父 重英, 小島 一信, 山崎 芳樹

    Property Type: Patent

  7. 周期表第13族金属窒化物結晶

    斉藤 真, 包 全喜, 石黒 徹, 秩父 重英

    Property Type: Patent

  8. 周期表第13族金属窒化物結晶の製造方法

    斉藤 真, 包 全喜, 石黒 徹, 秩父 重英

    Property Type: Patent

  9. 窒化物単結晶の製造方法

    石黒 徹, 包 全喜, 横山 千昭, 冨田 大輔, 秩父 重英, 茅野 林造, 植田 睦男, 斉藤 真, 鏡谷 勇二

    Property Type: Patent

  10. 窒化物単結晶の製造方法

    石黒 徹, 包 全喜, 横山 千昭, 冨田 大輔, 秩父 重英, 茅野 林造, 植田 睦男, 斉藤 真, 鏡谷 勇二

    特許第6192956号

    Property Type: Patent

  11. 窒化物単結晶の製造方法

    石黒 徹, 包 全喜, 横山 千昭, 冨田 大輔, 秩父 重英, 茅野 林造, 植田 睦男, 斉藤 真, 鏡谷 勇二

    Property Type: Patent

  12. トランジスタ用半導体基板、トランジスタ及びトランジスタ用半導体基板の製造方法

    秦 雅彦, 佐沢 洋幸, 秩父 重英, 島田 和宏

    Property Type: Patent

  13. トランジスタ用半導体基板、トランジスタ及びトランジスタ用半導体基板の製造方法

    秦 雅彦, 佐沢 洋幸, 秩父 重英, 島田 和宏

    特許第6001345号

    Property Type: Patent

  14. 積層体およびその製造方法、並びにそれを用いた機能素子

    秩父 重英, 羽豆 耕治, 中山 徳行, 田中 明和

    特許第5661509号

    Property Type: Patent

  15. 窒化物半導体紫外線発光素子

    平野光, 長澤陽祐, 秩父重英, 小島一信

    特許6391207

    Property Type: Patent

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Research Projects 24

  1. Top-down fabrication of semiconductor microcavities and their application to ultraviolet polariton lasers

    K. Shima, S. F. Chichibu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2025/04 - 2028/03

  2. グラファイト型層状窒化ホウ素の気相合成と光電子素子材料としての物性解明

    秩父 重英, 嶋 紘平

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2023/06/30 - 2025/03/31

  3. 六方晶および閃亜鉛鉱構造窒化ホウ素の高温気相エピタキシャル成長と導電性制御

    秩父 重英, 嶋 紘平

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(B)

    Institution: 東北大学

    2022/04/01 - 2025/03/31

  4. A study of the activation mechanism of implanted impurities and control of point defect in group III nitride

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: University of Tsukuba

    2021/04/01 - 2025/03/31

  5. A study of the activation mechanism of implanted impurities and control of point defect in group III nitrides

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: University of Tsukuba

    2021/04/01 - 2025/03/31

  6. 六方晶および閃亜鉛鉱構造窒化ホウ素の高温気相エピタキシャル成長と導電性制御

    S. F. Chichibu, K. Shima

    2022/04 - 2025/03

  7. 六方晶窒化ボロン半導体の直接遷移型化と深紫外励起子発光ダイナミクスの研究

    秩父 重英, 原 和彦, 小島 一信, 嶋 紘平

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 挑戦的研究(萌芽)

    Institution: 東北大学

    2020/07/30 - 2023/03/31

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    六方晶層状窒化ボロン(hBN)は禁制帯幅約6eVの超広禁制帯幅(UWBG)半導体であり、間接遷移型半導体ながら230 nm以下の発光を呈すため深紫外(DUV)光源用材料として期待できる。ごく最近単一原子層六方晶BN(mBN)やBernal型層状BN(bBN)の禁制帯が直接遷移型となる事が報告されたが、検証する基礎研究が必要である。しかしながらUWBG半導体のパルス励起は困難であり発光ダイナミクス研究自体が極めて少ない。本研究の目的は、mBNやbBNの発光機構を明らかにすることである。 2021年度は以下の項目を実施した。 (1)原料ガスのNH3およびBCl3を反応管に導入するタイミングがhBN薄膜の形成に大きな影響を与えることを明らかにした。特に、同時供給の場合に結晶性、発光特性ともに大幅に改善されることがわかった。一方、 NH3先行供給は成長を阻害した。また、金属初期層による成長モードの制御も試み、Ni層上では、(i)凝集したNi粒上で横方向成長、(ii) 粒周囲で粒に沿った成長、および(iii) 粒と粒の間で柱状成長の、3つの異なる機構で成長していることがわかった。次年度は、これらの結果を活用し、layer by layer 成長に適した基板表面上においてNiを成長核としたmBNの作製を目指す。 (2)発光機構解明に用いるフェムト秒パルスDUVレーザの光学部品を刷新して高出力化と安定化を行い、hBNの時間分解フォトルミネッセンス測定を7~300 Kで実施して励起子発光ダイナミクスの温度依存性を取得した。 (3)フェムト秒パルス電子線を用いる時間分解カソードルミネッセンス(CL)計測の予備実験として連続電子線による広域CL測定を実施した。1μm厚のBN薄膜に加え、従来6層以下では計測が困難であったmBNのCL測定を実現した。 (4)フェムト秒パルス電子線を集束して用いる時間・空間同時分解蛍光計測系に電子線減速機構を付加して低加速電圧計測系を立ち上げ、hBN薄膜の空間分解CL測定を行った。

  8. Synthesis of high quality single crystals for sience of Boron Nitride

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: National Institute for Materials Science

    2020/04/01 - 2023/03/31

  9. LED-based optical wireless communications in the solar-blind band

    Yoshinari Awaji

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: National Institute of Information and Communications Technology

    2019/04/01 - 2022/03/31

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    Light in the deep ultraviolet (DUV) wavelength regime, with wavelengths below 280 nm, is known as the solar blind band, which is not affected by sunlight on the earth's surface. The solar-blind band is expected to allow high-speed optical wireless communications (OWC) even outdoors during the daytime. However, due to the lack of viable light sources, the achievable data rate in previous studies on DUV-OWC was only a few Mbps and did not meet the requirements for 5G and beyond. In this work, we have investigated a high-speed OWC system using AlGaN-based DUV LEDs, which have recently been developed for sterilization, measurement, and resin carving. We achieved >1 Gbps transmission outdoors under direct sunlight and revealed the unique emission mechanism of AlGaN LEDs that enables high-speed modulation. Furthermore, a Gbps-class wide-field-of-view solar-blind wavelength division multiplexing transmission was demonstrated experimentally.

  10. Spatio-time-resolved cathodoluminescence studies on singularity crystals

    Chichibu Shigefusa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Tohoku University

    2016/06/30 - 2021/03/31

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    Singular structures containing imperfections and/or inhomogeneity form heterostructures with the bulk and the surface. In order to probe local luminescence dynamics in such singularities embedded in wide bandgap semiconductors (WBGSs), spatio-time-resolved cathodoluminescence (STRCL), which uses a femtosecond-laser-driven pulsed photoelectron gun instead of cw electron gun of spatially resolved cathodoluminescence (CL) equipped on scanning electron microscopy (SEM), is an attractive tool. In this work, technical advantages were offered on the spatial and temporal resolutions of our STRCL system, and then local luminescence dynamics in designed, self-formed, and accidentally formed WBGS singularity structures fabricated by other research groups within this academic area such as GaN, InGaN, AlInN, AlN, and BN were successfully characterized.

  11. Developement and application of spatio-time-resolved cathodoluminescence for wide bandgap nanostructures

    Chichibu Shigefusa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2017/04/01 - 2020/03/31

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    Spatio-time-resolved cathodoluminescence (STRCL), which uses a femtosecond-laser-driven pulsed photoelectron gun instead of the cw electron gun of spatially resolved cathodoluminescence (CL) combined with scanning electron microscopy (SEM), is an attractive tool for probing local luminescence dynamics in quantum structures and nanostructures of wide-bandgap (WBG) semiconductors. As STRCL is based on SEM, multiscale characterization of a structure with high spatial definition is possible, and the use of pulsed electron-beams allows the sub-picosecond excitation of any WBG semiconductor. In this work, we improved the spatial resolution by introducing a high efficiency photoelectron source made of Au and adding a retarding sysytem around the sample stage. Also we improved the sensitivity and temporal resolution of the detection system. Then we characterized WBG semiconductors such as AlN, AlGaN, AlInN, BN, ZnO to clarify their emission mechanisms.

  12. Luminescence dynamics of BN exhibiting large excitonic effects in the deep ultraviolet wavelength region

    Chichibu Shigefusa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2018/03/31

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    To cope with the water shortage problem and to downsize a variety of photo-excitation sources, there has been a strong demand to realize low-cost solid-state deep-ultraviolet (DUV) light emitters. Since hexagonal boron nitride (h-BN) exhibits DUV lights at approximately 215-240 nm and is predicted to show strong excitonic effects in its optical spectra, h-BN is one of the promising semiconductors of DUV and UV light emitters. In this research project, radiative and nonradiative recombination dynamics of excitons of h-BN microcrystals (MCs) and epilayers in the DUV wavelength region were investigated by using our unique spatio-time-resolved cathodoluminescence (STRCL) equipment. The h-BN samples exhibited distinct DUV luminescence peaks although the spectral features indicated an indirect bandgap nature of h-BN. The result indicates a strong interaction between the indirect excitons and phonons due to the excitonic effect.

  13. Realization of high-power and high-efficiency light-emitting devices based on AlInN

    Kojima Kazunobu

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2015/04/01 - 2017/03/31

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    Structural and optical characterization were performed for thin m-plane AlInN epitaxial nanostructures grown by metalorganic vapor phase epitaxy. Crystal qualities of AlInN were remarkably improved via coherent growth on a low defect density m-plane freestanding GaN substrate prepared by hydride vapor phase epitaxy. All the epilayers unexceptionally suffer from uniaxial or biaxial anisotropic in-plane stress. However, full-width at half-maximum values of the x-ray x-rocking curves were nearly unchanged as the underlayer values being 80 ~ 150 arcsec. Applying the m-plane AlInN epitaxial nanostructures, planar vacuum fluorescent display devices emitting polarized DUV, blue, and green light were demonstrated.

  14. Helicon-wave-excited-plasma sputtering epitaxy of polariton laser structures for room temperature operation

    CHICHIBU Shigefusa, SOTA Takayuki, UEDONO Akira, HAZU Kouji, FURUSAWA Kentaro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2010/04/01 - 2014/03/31

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    A cavity-coupled exciton-polariton laser, namely cavity-polariton laser, has been attracting attention as a new generation low-threshold current density coherent light source composed of a semiconductor microcavity. In the present research, a microcavity composed of a ZnO active region sandwiched by pairwise distributed Bragg reflectors (DBRs) that most likely operates at room temperature was fabricated using a uniquely designed Helicon-Wave-Excited Plasma Sputtering (HWPS) method, which enables to grow high quality epitaxial semiconductor films. We eventually observed an enhanced emission peak at around 3.25 eV, which originates from an exciton-polariton emission coupled with a cavity mode. We therefore conclude that a way to fabricate new functional quantum heterostructures and to characterize them was cut open using the growth, fabrication, and characterization methods developed by this research project.

  15. Development of a spatio-time-resolved cathodoluminescence spectroscopy technique applicable for wide bandgap semiconductors through the generation and focusing of high-brightness femtosecond pulsed photoelectron beams

    CHICHIBU Shigefusa, HAZU Kouji

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2011 - 2012

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    To probe local carrier dynamics in wide bandgap semiconductors such as AlN and high AlN mole fraction AlGaN alloys, the use of spatio-time-resolved cathodoluminescence (STRCL) technique offering high spatial and temporal resolutions is preferred, becauseelectron beams can be focused and implanted into sub-micrometer to nanometer regions of interest. In this study, we succeeded in developing a novel front-excitation type high-brightness pulsed photoelectron (PE)- gun driven by femtosecond laser pulses, and the STRCL measurement system equipped with this PE-gun was used to measure the local emission dynamics in GaN, AlN, and high AlN mole fraction AlGaN alloys.

  16. Study of point defects and light-emitting dynamics in group-III nitride semiconductors

    UEDONO Akira, CHICHIBU Shigefusa, OSHIYAMA Atsushi, UCHIDA Kazuyuki, SHIRAISHI Kenji

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Priority Areas

    Institution: University of Tsukuba

    2006 - 2010

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    We studied relationships between nonradiative recombination lifetimes and point defects in (AlGaIn)N by means of positron annihilation and time-resolved photoluminescence techniques ; such recombination centers govern optical properties of the materials. We also used the first-principle calculation to study configuration and electric properties of point defects and band structures at the surface and in the interfaces.

  17. Epitaxial growth and fabrication of microcavities by the helicon-wave-excited-plasma sputtering method

    CHICHIBU Shigefusa, UEDONO Akira, SOTA Takayuki, SUGIYAMA Mutsumi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2007 - 2009

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    A cavity polariton laser is attracting attention as a new generation coherent light source composed of a semiconductor microcavity. In the present research, epitaxial growth of single crystalline ZnO and MgZnO films exhibiting atomically flat surfaces and abrupt heterointerfaces was carried out using an uniquely designed 'helicon-wave-excited-plasma sputtering epitaxy (HWPSE)' method, in order to assess if ZnO microcavities can be prepared by the method. The epilayer properties resemble those of the films grown using conventional advanced epitaxial growth methods such as molecular beam epitaxy and metalorganic vapor phase epitaxy. In addition, anatase phase Nb-doped TiO_2 films, a new transparent conducting oxide having the refractive index close to GaN, were epitaxially grown. The findings that those new functional semiconductor epilayers can be grown by the inexpensive HWPSE method may cut open the way to fabricate semiconductor heterostructure quantum devices at a low price.

  18. Development of oxide semiconductor and dielectric electronics using helicon-wave-excited-plasma sputtering methods

    CHICHIBU Shigefusa, UEDONO Akira, SUEMASU Takashi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: University of Tsukuba

    2004 - 2006

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    To progress 'Oxide Optoelectronics' using the helicon-wave-excited-plasma sputtering (HWPS) method, deposition of polycrystalline thin films, epitaxial growth of semiconductors, deposition of multilayer structures of dielectric materials, and metal oxides were carried out. Significant results are following. i) Effectiveness of the high-temperature-annealed self-buffer layer (HITAB) on the heteroepitaxy of ZnO and MgZnO was investigated for the epitaxial growth using HWPS method, namely HWPSE. Atomically flat HITAB was obtained by depositing 100-nm-thick films of ZnO or MgZnO at 500-600 ℃ followed by high-temperature annealing at 900-1000 ℃ for 1 hr. The ZnO epilayers grown on ZnO HITAB prepared on a-plane Al_2O_3 substrates exhibited a free-excitonic photoluminescence (PL) peak at low temperature, and the PL spectra at 300 K were dominated by the near-band-edge excitonic emissions. ii) As transparent conducting oxide (TCO) films for photovoltaic (PV) applications, indium tin oxide (ITO) as well as polycrystalline ZnO doped by Al or Ga were deposited by the HWPS method. The electron concentration of Ga-doped ZnO (ZnO : Ga) films was as high as 10_<20> cm_<-3>. For the light absorbing layers, good quality Cu (Ga_xIn_<1-x>)Se_2 films were prepared by the selenization technique using metalorganic sources. iii) Distributed Bragg reflectors (DBRs) composed of 8-pair SiO_2/ZrO_2 dielectric multilayers, of which central wavelength was tuned at B-exciton resonance wavelength of ZnO (366.5 nm), were fabricated using the reactive HWPS (R-HWPS) method. The reflectivity at 366. 5 nm was higher than 99. 5% and the stop-band width (R【greater than or equal】95%) was as large as 82 nm. iv) Delafossite structure CuAlO_2 films, which are expected to be p-type TCO films, were deposited by HWPS using Cu and Al metal targets, as well as by R-HWPS method using CuAlO_2 sintered target. Although low resistivity films are not yet obtained, delafossite structure was confirmed.

  19. 酸化亜鉛系半導体を用いた室温動作励起子ポラリトンレーザ実現に関する基礎研究

    秩父 重英

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 萌芽研究

    Institution: 筑波大学

    2003 - 2004

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    本研究は、励起子束縛エネルギーの大きい酸化亜鉛(ZnO)の優れた材料的特長をデバイスに抽出して生かすべく、励起子共鳴波長程度のZnO単結晶薄膜を対向する反射鏡で挟み込むことにより微小共振器を形成し、励起子と電磁波の連成波(励起子ポラリトン)を共振器モードに結合させることによって、室温において共振器結合励起子ポラリトンを形成することを最終目標として行った。2年間で得られた成果のハイライトは以下の点である。 1)申請者が独自に開発した「ヘリコン波励起プラズマスパッタエピタキシー(HWPSE)法」を用い、a面サファイヤ上へのZnOおよびMg_<0.06>Zn_<0.94>O混晶のエピタキシャル成長に成功した。また、プラズマ分光測定を通じ、MgZnO薄膜形成中にZnおよびMg原子からの強い発光が観測される事を見出した。従って、成長にはターゲットから飛び出すZn-O分子やMg-O分子だけでなく、カチオン原子が寄与している事を明らかにした。 2)微小共振器の構成部品となるSiO_2/ZrO_2誘電体多層膜および、MgZnO/ZnOとAIN/GaNの半導体多層膜の設計を、分布ブラッグ反射鏡の反射率計算から行った。その結果、誘電体多層膜では屈折率差が大きく取れることから、膜厚誤差ほぼ3nm以内で62.0nm/42.7nmの周期構造を8周期形成することにより99%の反射率が得られるが、半導体多層膜では同等の膜厚比で40周期程度堆積する必要がある事がわかった。この計算をもとに、実際に電子ビーム蒸着法と、HWPS法の2通りの方法でSiO_2/ZrO_2誘電体多層膜反射鏡の形成実験を行った。その結果、特にHWPS法を用いた場合に、表面の平均二乗粗さが0.2nm程度のSiO2やZrO2堆積できることが明らかになった。ブラッグ反射鏡としてはレコード級の平坦さである。 3)HWPSE法以外の成長法(レーザMBE法やMBE法)により成長されたZnO薄膜結晶を用い、励起子と電磁波の連成波の観測実験を行った。その結果、薄膜試料であってもi)高温成長による低Zn空孔密度化、ii)高温アニールによる低格子間欠陥密度化を行うことによって高次励起子や励起子ポラリトンが観測できることを示した。 以上のように、萌芽的内容であり実現の可能性が未知数であった酸化亜鉛の励起子ポラリトン形成に関して、有用な知見を与えられたと考えている。

  20. ヘリコン波励起プラズマスパッタエピタキシー法の提案と酸化物半導体ナノ構造の形成

    秩父 重英

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究(B)

    Institution: 筑波大学

    2001 - 2002

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    本研究は、独自に開発した「ヘリコン波励起プラズマスパッタエピタキシー(HWPSE)法」を用いて新機能性材料として期待される酸化亜鉛(ZnO)単結晶薄膜およびナノ構造を形成し、光エレクトロニクスデバイスへの応用を図ろうとるものである。 HWPSE法は、高密度かつ低エネルギーなヘリコン波励起プラズマ(HWP)をリモートプラスマ源として用いる新しい半導体薄膜形成技術である。しかし、特に化合物半導体ターゲットを用いたHWPスパッタ製膜の報告は現在でもほとんど無く、本手法による薄膜形成プロセスの詳細は明らかになっていなかった。そこで、ZnO薄膜成長中のHWP分光測定を初めて行い、ZnO薄膜形成過程を詳細を調査た・サファイアA面上へのZnO薄膜成長を試みた。ターゲットには無添加ZnO(5N)を用い、スパッタガスとしてAr/O_2混合ガスを導入した。 分光の結果、HWP中からはArおよびO原子からの発光の他に、波長320nm付近にZn原子からの強い発光が観測された。同時にZnO分子からの弱い発光も観測した。これはZnO薄膜形成の主なプロセスがMBE法などと同様Zn+O→ZnOの化学反応であることを示すものである。 基板温度700℃でサファイアA面上に成長したZnO薄膜は完全c軸配向し、面内においてもa軸がロックされた単一ドメインのエピタキシャル薄膜であった。原子間力顕微鏡による表面観測から、表面には原子レベルで平坦なテラスが特定の方位に幅100nm以上に拡がっており、各々のテラスが段差約3.04nmのステップを持って並ぶ構造であることがわかった。また、室温においてバンド端領域の紫外線発光(半値幅110meV程度)が支配的なPLスペクトルが得られた。 バルクZnO結晶を用いて励起子と電磁波の連成波の観測も行なった。今後は超薄膜・テヘロ構造・量子構造の形成を行い、FIB加工によるナノ構造導入を検討する予定である。

  21. STUDY OF POINT DEFECTS IN GaN AND RELATED COMPOUND SEMICONDUCTORS BY MEANS OF POSITRON ANNIHILATION

    UEDONO Akira, CHICHIBU Shigefusa, AKIMOTO Katsuhiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: UNIVERSITY OF TSUKUBA

    2001 - 2002

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    Positron annihilation is an established technique to investigate point defects in materials. We probed defects in Eu-and Tb-doped GaN films grown on sapphire substrates by gas-source molecular beam epitaxy with a monoenergetic positron beam. In both Eu- and Tb-doped samples, we observed vacancy clusters consisting of two or more vacancies. These defects were introduced by replacing Ga with rare-earth elements, and resulting in distortion of the host matrix. We studied the correlation between luminescence originating from the intra-4f-transitions of Eu^<3+> and the crystal quality of GaN film. In film doped at 2-at.% Eu, the mean open volume of the vacancies near the interface between the GaN film and the sapphire substrate was found to be larger than that in the subsurface region. The increase in the open volume of the defects correlated with the lowering coordination symmetry of Eu^<3+> and the increase in the transition rate of its 4f-electrons. Zinc oxide (ZnO) thin films grown on ScAlMgO_4 substrates were also studied. We measured Doppler broadening spectra of annihilation radiation and photoluminescence spectra for the ZnO films deposited by laser molecular-beam epitaxy and single crystal ZnO. Although the lifetime of positrons in single crystal ZnO was close to the lifetime of positrons annihilated from the free state, the diffusion length of positrons was shorter than that for typical defect-free materials. We attribute this to the scattering of positrons by native defects. For the ZnO films, we observed a correlation between the defects and the lifetime of bound exciton emissions τ_<Ex> ; the main defect species detected by positron annihilation was Zn vacancies or other related defects. Isochronal annealing at 750-850℃ was found to introduce additional vacancy-type defects into the film, although the value of τ_<Ex> was scarcely changed by the annealing.

  22. Investigation of a solar battery using the environmentally friendly semiconductor : beta-FeSi_2

    HASEGAWA Fumio, SUEMASU Takashi, CHICHIBU Shigefusa

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: University of Tsukuba

    2000 - 2002

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    Solar batteries are usually made of amorphous Si or poly-Si, but the conversion efficiency is limited. One of the reason is low absorption coefficient of Si. CuInSe2/CdS can give a higher efficiency by a deposited poly-crystalline, but it contains toxic Se and Cd. The purpose of this project is to investigate an environmentally friendly semiconductor with high absorption coefficient, therefore, high efficiency with a thin film. One of the candidate was a semiconducting silicide ; beta-FeSi_2, but there had been no report on a high quality thin film and details of the band structure had not also been clear. We succeeded to grow a high quality beta-FeSi_2 film by multi-layer method and MBE growth, which could give a higher carrier mobility of one order of magnitude than those reported so far. The absorption coefficient was proved to be as high as 10^5/cm. Energy band structure was also made clear: indirect band gap of 0.81eV and direct band gap of 0.97eV. It was found that conduction type was controlled by the depositing Si/Fe ratio. Band gap of 0.81eV is, however, too small to give a high efficiency as a solar battery by itself. Therefore, another semiconducting silicide with a wider band gap was searched. BaSi_2 was another candidate because it was reported that the band gap was either 1.3eV or 0.7eV. Firstly, we investigated poly-crystalline BaSi_2 and found it has an indirect band gap of 1.1eV and direct band gap of 1.25eV, a little bit wider than beta-FeSi_2. We tried to grow BaSi_2 thin film on Si (111) by a MBE method and succeeded to get a high quality thin film for the first time. Solar battery characteristics has not been clarified yet, but these results could indicate that semiconducting silicide is a good candidate of environmentally friendly solar battery materials.

  23. 窒化物半導体量子井戸構造の光学遷移過程における励起子局在効果の研究

    秩父 重英

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 筑波大学

    1999 - 2000

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    1.有機金属化学気相エピタキシー(MOVPE)および分子線エピタキシー(MBE)法による立方晶InGaN成長 MBEではRFプラズマ源を用いて3C-SiC/Si基板上に立方晶GaNを成長させ、それをバッファとして立方晶InGaN及びInGaN/GaN量子井戸構造を成長した。MOVPE装置の立ち上げ作業も終焉を迎えた。得られたInGaN膜および量子井戸は下地のGaNのコヒーレントに成長していることが確認され、歪InGaN層のInNモル分率は最大20%近くまでを制御して成長できた。しかしながら組成の不均一性は大きかった。フォトルミネッセンス(PL)発光スペクトルは、InNモル分率の増加に伴ない紫外域から純青・緑色領域を越して黄緑色程度まで及んだ。 2.フォトルミネッセンス・フォトリフレクタンス・時間分解フォトルミネッセンス等の光学的物性評価 PLスペクトルとPL励起スペクトルから、InNモル分率の増加に伴ない有効バンドギャップ不均一性も増大することが確認された。そのストークスシフト量は六方晶のそれに匹敵ないしはそれより大きい。立方晶構造では六方晶構造で問題とされる圧電電場による電子-正孔の波動関数の重なりの減少は無い。したがって、これらの結果から励起子が局在している事が伺える。 時間分解PL測定からも、強い局在を示す、検出波長の増加にともなう再結合寿命の増加が見られた。立方晶材料六方晶材料に比べ非発光再結合が強いが、温度の増加にともなう非発光再結合寿命の減少自体は顕著ではなかった。六方晶InGaN量子井戸において空間分解カソードルミネッセンス測定から数十nm以下のスケールでの組成変調が認められており、拡散長を短くしてキャリアを局在させ、発光効率の増大に寄与したものと考えている。バルクInGaNでも量子井戸でも局在は観測されており、励起子の局在はInGaN材料におけるユニバーサルな現象といえる。

  24. MOCVD成長高品質銅カルコパイライト半導体エピタキシャル層の発光素子化検討

    秩父 重英

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 奨励研究(A)

    Institution: 東京理科大学

    1995 - 1995

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    1.CuAl_xGa_<1-x>Se_2の混晶組成制御 CuAl_xGa_<1-x>Se_2は赤〜青色までの可視光領域に相当する禁制帯幅を持つ混晶である。本研究では減圧MOCVD法を用いて高品質なエピ成長ができた。固相Al組成xは気相へ供給したAl原料とGa原料のAlモル比と一致(分配係数は1)した。混晶層は終端化合物同様、基板との格子整合性の関数からGaAs上にはc軸配向エピ成長しGaP上にはa軸配向し面内でc軸が交差するドメイン成長した。エピ層の表面荒さは2〜3nm程度であった。 エピ層の励起子エネルギをフォトリフレクタンス(PR)測定で求めたところ、混晶全域で結晶場分裂がバルク結晶のそれより大きくスピン軌道分裂は同程度であった。この結果はエピ層が基板-エピ層間の熱膨張係数差によって熱歪を受けている事で説明できた。エピ層の低温フォトルミネッセンス(PL)スペクトルはバンド端に関与する発光が支配的であり、x増加に従い赤〜青紫と変化し可視領域発光を1つの混晶材料で実現できた。 2.CuGaS_2,CuAlS_2の成長と金属-半導体接触の検討 両化合物において室温でバンド端発光が支配的なエピ層を成長できた。c軸の1/2よりa軸長の方がGaAs,GaPの格子定数に近いためいずれの基板にもc軸配向エピ成長した。格子不整合はGaP基板の方が小さいが成長層の特性はGaAs上の方が優れていた。エピ層諸特性に対して格子定数だけでなく熱膨張係数整合が重要であることがわかった。CuGaS_2とGaAs間の価電子帯不連続量を評価し、CuGaS_2/CuGaSe_2に転写したCuGaSe2中にキャリアを閉じこめられる可能性があることがわかった。さらなる結晶性改善により光、キャリア閉じこめ検討を行う予定である。

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Teaching Experience 4

  1. 光エレクトロニクス 東北大学

  2. Optoelectronis Semiconductors University of Tsukuba

  3. 電子回路 筑波大学

  4. 電磁気学 東京理科大学

Works 1

  1. 科技機構創造科学技術推進事業中村不均一結晶プロジェクト

    2001 -

Academic Activities 1

  1. CSW 2022 ショート速報 [化合物半導体材料・物性・デバイス]

    2022/07 -

    Activity type: Academic research