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DOI | 10.1016/J.APSUSC.2017.10.236 | ||||
Año | 2018 | ||||
Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The microwave-assisted solvothermal synthesis of C-doped TiO2 and ZnO hybrid materials was performed. Saccharose, titanium isopropoxide and zinc acetate were used as organic and inorganic sources for the synthesis. The influence of temperature and reaction time on the textural and optoelectronic properties of the hybrid materials was verified. Carbon quantum-dots of TiO2 and ZnO nanostructured spheres were obtained in a second pot by controlled calcination steps of the precursor hybrid materials. A carefully characterization by adsorption-desorption N-2 isotherms, XRD, XPS, SEM, UV-vis/DR and electro-and photo-electrochemistry properties of the carbon quantum-dots TiO2 and ZnO spheres was performed. The photoelectrochemical activity of TiO2-C and ZnO-C films proved to be dependent on the conditions of synthesis. It was found a red-shift in the energy band gap of the semiconductors with values of 3.02 eV and 3.13 eV for the TiO2-C and ZnO-C, respectively, clearly lower than those on bare semiconductors, which is associated with the C-doping effect. From the photo-electrochemistry characterization of C-doped TiO2 and ZnO films can be concluded that the present materials have potential applications as photoelectrodes for quantum-dots sensitized solar cells. (C) 2017 Elsevier B.V. All rights reserved.
Ord. | Autor | Género | Institución - País |
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1 | Rangel-Mendez, JOSE RENE | Hombre |
IPICYT - México
Instituto Potosino de Investigación Científica y Tecnológica - México |
2 | Matos, Juan | Hombre |
Universidad de Concepción - Chile
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3 | Chazaro-Ruiz, Luis F. | Hombre |
IPICYT - México
Instituto Potosino de Investigación Científica y Tecnológica - México |
4 | Gonzalez-Castillo, Ana C. | Mujer |
IPICYT - México
Instituto Potosino de Investigación Científica y Tecnológica - México |
5 | Barrios-Yanez, Guillermo | Hombre |
IPICYT - México
Instituto Potosino de Investigación Científica y Tecnológica - México |
Fuente |
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FONDEF Project |
Mexican CONACYT-SENER-Sustentabilidad Energetica |
Chilean Basal Program PFB-27 |