Filmes de titânio-silício preparados por spin e dip-coating
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Data
2003-10-01
Autores
Nassar, Eduardo J.
Ciuffi, Katia J.
Gonçalves, Rogéria R. [UNESP]
Messaddeq, Younes [UNESP]
Ribeiro, Sidney José Lima [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
The conditions for the preparation of luminescent materials, consisting of Eu3+ ions entrapped in a titanium matrix, in the forma of a thin film, using the sol-gel process, are described. The films were obtained from sols prepared with TEOS and TEOT, in the presence of acetylacetone as the hidrolysis-retarding agent, using the dip-coating and spin-coating techniques. The influence of these techniques on the films based on titanium and silicon are presented. The Eu3+ was used as a luminescent probe. The films have been characterized by luminescence, reflection and transmittance. The thickness of the films could be related to the preparation procedure. Transparent thin films have been prepared by dip-coating technique.
Descrição
Palavras-chave
sol-gel, europium III, wave guides
Como citar
Química Nova. Sociedade Brasileira de Química, v. 26, n. 5, p. 674-677, 2003.