Ultraviolet excitation of photoconductivity in thin films of sol-gel SnO2

Nenhuma Miniatura disponível

Data

2005-01-01

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

Tin dioxide (SnO2) thin film photoconductivity spectra were measured for a large temperature range using a deuterium source, the intensity of photocurrent spectra in the range 200-400 nm is temperature dependent, and the photocurrent increases in the ultraviolet even for illumination with photon energies much higher than the bandgap transition. This behavior is related to recombination of photogenerated electron-hole pairs with oxygen adsorbed at grain boundaries, which is consistent with nanoscopic crystallite size of sol-gel deposited films. (c) 2005 Elsevier Ltd. All rights reserved.

Descrição

Idioma

Inglês

Como citar

Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 25, n. 12, p. 2825-2828, 2005.

Itens relacionados

Financiadores