Details of the Researcher

PHOTO

Veiga Lionel Sebastian
Section
Advanced Institute for Materials Research
Job title
Specially Appointed Assistant Professor(Research)
e-Rad No.
21047285

Papers 16

  1. Effects of Ohmic Contact Formation between GaN Photocatalyst and Pt Cocatalyst

    Takaya OCHIAI, Meita ASAMI, Lionel VEIGA, Shingi YAMAGUCHI, Masakazu SUGIYAMA, Tsutomu MINEGISHI

    Electrochemistry 2025

    DOI: 10.5796/electrochemistry.25-72091  

  2. A novel particulate photocathode composed of CdTe–ZnTe solid solutions with a composition gradient for solar hydrogen evolution from water

    Lionel S. Veiga, Mamiko Nakabayashi, Takenori Fujii, Masakazu Sugiyama, Tsutomu Minegishi

    Chemical Science 2025

    DOI: 10.1039/D5SC02472B  

  3. Enhanced Charge Separation and Hydrogen Evolution from Water over ZnTe-CdTe Solid Solution Based Photocathode with a Composition Gradient

    Lionel Sebastian Sebastian Veiga, Masakazu Sugiyama, Tsutomu Minegishi

    ECS Meeting Abstracts 2024/11/22

    DOI: 10.1149/MA2024-02593924mtgabs  

  4. Efficient hydrogen evolution from water over a thin film photocathode composed of solid solutions with a composition gradient of ZnTe and CdTe

    Lionel S. Veiga, Hiromu Kumagai, Masakazu Sugiyama, Tsutomu Minegishi

    Sustainable Energy & Fuels 2024

    DOI: 10.1039/d4se00067f  

    ISSN: 2398-4902

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    <jats:p>Photocathode composed of solid solutions with a composition gradient of ZnTe and CdTe shows significantly enhanced solar hydrogen evolution from water over bilayer and/or monolayer photocathodes.</jats:p>

  5. Mass-production of water-based ferrofluids capable of developing spike-like structures

    Jara, D., Veiga, L.S., Garate, O., Ybarra, G., Tancredi, P.

    Journal of Magnetism and Magnetic Materials 572 2023/04

    DOI: 10.1016/j.jmmm.2023.170622  

    ISSN: 0304-8853

  6. High-performance non-enzymatic hydrogen peroxide electrochemical sensor prepared with a magnetite-loaded carbon nanotube waterborne ink

    Garate, O., Veiga, L.S., Tancredi, P., Medrano, A.V., Monsalve, L.N., Ybarra, G.

    Journal of Electroanalytical Chemistry 915 2022/06

    DOI: 10.1016/j.jelechem.2022.116372  

    ISSN: 1572-6657

  7. Understanding the electrochemical sensors' figures of merit usinga H2O2sensitive, low-cost ferrite powder first generation electrode,Comprendiendo las figuras de mérito de los sensores electroquímicos mediante un electrodo de ferrita de primera generación sensible al H2O2

    Garate, O., Veiga, L.S., Tancredi, P., Ybarra, G.

    Educacion Quimica 33 (2) 2022/04/18

    DOI: 10.22201/FQ.18708404E.2022.2.80070  

    ISSN: 0187-893X 1870-8404

  8. Nanomaterial-based multifunctional inks for the fabrication of printed biosensors

    Veiga, L.S., Garate, O., Gim{\'e}nez, G., Ybarra, G., Monsalve, L.N.

    Smart Multifunctional Nano Inks Fundamentals and Emerging Applications 2022

    DOI: 10.1016/B978-0-323-91145-0.00018-9  

  9. Fully inkjet-printed biosensors fabricated with a highly stable ink based on carbon nanotubes and enzyme-functionalized nanoparticles

    Mass, M., Veiga, L.S., Garate, O., Longinotti, G., Moya, A., Ram{\'o}n, E., Villa, R., Ybarra, G., Gabriel, G.

    Nanomaterials 11 (7) 2021/06/23

    DOI: 10.3390/nano11071645  

    ISSN: 2079-4991

  10. Videogames mediated nanotechnology introduction: A theoretical proposal,Introducción a la nanotecnología mediada por videojuegos: Una propuesta teórica

    Garate, O.F., Veiga, L.S.

    Educacion Quimica 32 (3) 2021

    DOI: 10.22201/FQ.18708404E.2021.3.75694  

    ISSN: 0187-893X 1870-8404

  11. Magnetic mesoporous silica nanospheres with dual probe & release fluorescent functionality

    Tancredi, P., Rivas-Rojas, P.C., Veiga, L.S., Garate, O., Socolovsky, L.M., Muraca, D., Ybarra, G.

    Nanotechnology 31 (49) 495603-495603 2020/12/04

    Publisher: {IOP} Publishing

    DOI: 10.1088/1361-6528/abb2c1  

    ISSN: 0957-4484 1361-6528

  12. Performance of cuprous oxide mesoparticles with different morphologies as catalysts in a carbon nanotube ink for printing electrochemical sensors

    Veiga, L.S., Garate, O., Tancredi, P., Monsalve, L.N., Ybarra, G.

    Journal of Alloys and Compounds 847 2020

    DOI: 10.1016/j.jallcom.2020.156449  

    ISSN: 0925-8388

  13. One-Pot Ultrafast Microwave-Assisted Synthesis of Copper and Copper Oxide Nanoparticles

    Veiga, L., Garate, O., Lloret, P., Moina, C., Ybarra, G.

    International Journal of Nanoscience 18 (6) 2019/12

    DOI: 10.1142/S0219581X18500345  

    ISSN: 0219-581X 1793-5350

  14. Magnetophoretic mobility of iron oxide nanoparticles stabilized by small carboxylate ligands

    Tancredi, P., Veiga, L.S., Garate, O., Ybarra, G.

    Colloids and Surfaces A Physicochemical and Engineering Aspects 579 2019/10

    DOI: 10.1016/j.colsurfa.2019.123664  

    ISSN: 0927-7757 1873-4359

  15. Introducción a los fenómenos ópticos de nanopartículas metálicas a través simulaciones computacionales en línea

    Octavio Federico Garate

    Educación Química 2019/02/07

    DOI: 10.22201/fq.18708404e.2019.1.64777  

    ISSN: 1870-8404 0187-893X

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    <jats:p>&lt;p&gt;Al introducir las propiedades dependientes del tamaño de los nanomateriales, uno de los tópicos más atractivos lo constituyen las propiedades ópticas de las nanopartículas, debido al impacto inmediato que generan sobre el observador. No obstante, por lo general no resulta posible introducir un tratamiento riguroso de los fenómenos de absorción y dispersión de luz, debido al complejo marco teórico asociado a las interacciones entre la radiación electromagnética y las nanopartículas. Utilizando una herramienta de simulación en línea como Nmie-Nanohub, se propone una secuencia pedagógica que permita analizar la dependencia de estos fenómenos ópticos con los parámetros relevantes, tales como la longitud de onda de la radiación incidente, el tamaño y material de las nanopartículas, y el medio en el cual se encuentran inmersas.&lt;/p&gt;</jats:p>

  16. Waterborne carbon nanotube ink for the preparation of electrodes with applications in electrocatalysis and enzymatic biosensing

    Garate, O., Veiga, L., Medrano, A.V., Longinotti, G., Ybarra, G., Monsalve, L.N.

    Materials Research Bulletin 106 2018/10

    DOI: 10.1016/j.materresbull.2018.05.015  

    ISSN: 0025-5408

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