INTEMA 05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
artículos
Título:
Photoluminescent CaCu3Ti4O12-Based Thin Films Synthesized by a Sol-Gel Method
Autor/es:
RODRIGO PARRA; EDNAN JOANNI; JOSÉ W. M. ESPINOSA; RONALD TARARAM; MÁRIO CILENSE; PAULO R. BUENO; JOSÉ A. VARELA; ELSON LONGO
Revista:
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Editorial:
The American Ceramic Society
Referencias:
Año: 2008 vol. 91 p. 4162 - 4164
ISSN:
0002-7820
Resumen:
Results on the characterization of photoluminescent CaCu3Ti4O12-
based films, prepared from a solgel precursor and heat treated at
7001C, are reported for the first time. The samples showed two
emission bands at 554 and 800 nm when excited with a 488 nm
Ar-ion laser. The photoluminescent emission measured at room
temperature in thin films was attributed to complex vacancy clusters.
The films consisted of CaCu3Ti4O12 with traces of TiO2,
CuO, and CaTiO3 and showed porous structures with an average
particle size of 50 nm under atomic force microscopy resolution.
