Title :
SYNTHESIS AND CHARACTERIZATION OF METALLIC NANO-SPHERES
Author :
Velásquez-Ordónez, C. ; Torres-Cisneros, M. ; Sánchez-Mondragón, J.J. ; Meneses-Nava, M.A. ; Basurto-Pensado, M.A. ; Espinosa-Calderón, A.
Author_Institution :
IFIMEE, Univ. of de Guanajuato
Abstract :
The SiO2 and SiO2-Ag0 nano-spheres by sol-gel method have new application in the field photonics crystals. In this report, we demonstrate the synthesis of silver particles by reduction Ag+, obtained nanoparticles with range of size 2-10 nm, on colloid silica sphere, the silver nanoparticles, appearing on the surface of the silica microsphere. The material morphology was examined by electron microscopy (TEM) and the optical properties were studied by photoluminescence with excitation wavelength of 320 and 380 nm, the luminescence emission observed in the range 400-550 nm.
Keywords :
colloids; dielectric materials; nanoparticles; nanotechnology; photoluminescence; silicon compounds; silver; sol-gel processing; transmission electron microscopy; 320 to 380 nm; 400 to 550 nm; Ag+; SiO2-Ag; TEM; colloid silica sphere; luminescence emission; material morphology; metallic nanospheres; optical properties; photoluminescence; photonic crystals; reduction; silver nanoparticles; sol-gel method; transmission electron microscopy; Crystalline materials; Electron emission; Nanoparticles; Optical materials; Optical microscopy; Optical surface waves; Photonic crystals; Silicon compounds; Silver; Surface morphology;
Conference_Titel :
Electronics and Photonics, 2006. MEP 2006. Multiconference on
Conference_Location :
Guanajuato
Print_ISBN :
1-4244-0627-7
Electronic_ISBN :
1-4244-0628-5
DOI :
10.1109/MEP.2006.335615
