Optical characterization of titania thin films produced by the solgel method and doped with Co2+ at different concentrations


Por: Pacheco F., Palomino R., Martínez G., Mendoza-Galván A., Talavera R.R., Castaño V.M.

Publicada: 1 ene 1998
Resumen:
We report some preliminary results on the fabrication and optical characterization of high-refractiveindex thin films of titania doped with Co2+. These films were supported on silica plates that were chemically activated to attach both phases. The titania films were produced by the solgel method at room temperature and slowly annealed from room temperature to 230°C; their thickness was approximately 600Å. The optical characterizations were obtained by the use of spectroscopic ellipsometry, where the dielectric function of the material was obtained as a function of the wavelength. Additionally, the ellipsometric function was modeled to obtain the porosity of the films and their thickness. © 1998 Optical Society of America.

Filiaciones:
Pacheco F.:
 Departamento de Física, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Pue, Puebla, 72160, Mexico

 Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo Postal 55-534, 09340, Mexico

Palomino R.:
 Departamento de Física, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Pue, Puebla, 72160, Mexico

 Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo Postal 55-534, 09340, Mexico

Martínez G.:
 Instituto de Física, Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, 72750, Mexico

Mendoza-Galván A.:
 Instituto de Física, Universidad Autónoma de Puebla, Apdo. Postal J-48, Puebla, 72750, Mexico

Talavera R.R.:
 Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, Apdo. Postal 55-534, 09340, Mexico

Castaño V.M.:
 Instituto de Física, Universidad Nacional Autónoma de Mexico, Apdo. Postal 1-1010, Querétaro, 76001, Mexico
ISSN: 1559128X
Editorial
Optical Society of American (OSA), 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA, Estados Unidos America
Tipo de documento: Article
Volumen: 37 Número: 10
Páginas: 1867-1872
WOS Id: 000072713700025
ID de PubMed: 18273102