AVS 45th International Symposium
    Applied Surface Science Division Monday Sessions
       Session AS-MoP

Paper AS-MoP7
Optical and Structural Characterization of Copper-based Colloidal Particles in SiO@sub 2@ Coatings

Monday, November 2, 1998, 5:30 pm, Room Hall A

Session: Aspects of Applied Surface Science Poster Session
Presenter: F.J. Espinoza-Beltran, CINVESTAV-IPN, Mexico
Authors: R. Bernal, CICESE, Mexico
F.J. Garcia-Rodriguez, Univ. Autonoma de Queretaro, Mexico
J.F. Perez-Robles, CINVESTAV-IPN, Mexico
F.J. Espinoza-Beltran, CINVESTAV-IPN, Mexico
R. Ramirez-Bon, Univ. de Sonora, Mexico
Y.V. Vorobiev, CINVESTAV-IPN, Mexico
J. Gonzalez-Hernandez, CINVESTAV-IPN, Mexico
Correspondent: Click to Email
By using the sol-gel method were produced coatings having colloidal copper-based particles embedded in a SiO@sub 2@ matrix. The particle composition in each sample depended on the amount of copper added to the stating solutions, the atmosphere in which the samples were annealed and the annealing temperature. The optical properties of the colloidal system were determined by transmission and photoacoustic spectroscopies. X-ray diffraction, Raman scattering, and infrared measurements were used to characterize the structure of the composite glass. The model proposed by Mie was used with effective values for the optical constants of the colloidal particles to determine characteristic parameters of the colloidal system and the particle composition.