PREPARATION AND OPTICAL PROPERTY OF MONOLITHIC SILICA-GEL UNIFORMLY DISPERSED WITH GOLD COLLOID FROM AQUEOUS-SOLUTION

Authors
YAZAWA T KADONO K TANAKA H SAKAGUCHI T TSUBOTA S KURAOKA K MIYA M WANG DX
Citation
T. Yazawa et al., PREPARATION AND OPTICAL PROPERTY OF MONOLITHIC SILICA-GEL UNIFORMLY DISPERSED WITH GOLD COLLOID FROM AQUEOUS-SOLUTION, Journal of non-crystalline solids, 170(1), 1994, pp. 105-108
Citations number
15
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
170
Issue
1
Year of publication
1994
Pages
105 - 108
Database
ISI
SICI code
0022-3093(1994)170:1<105:PAOPOM>2.0.ZU;2-I
Abstract
Gold colloids were prepared from aqueous HAuCl4 solutions ranging in c oncentration from 0.01 to 0.05 wt% by reducing with sodium citrate and dispersed in a monolithic disk, with 35 mm diameter and 1 mm thicknes s, by the sol-gel method. Tetramethoxysilane is the only useful reagen t as Si source. The particle size of dispersed gold colloids was about 50 nm. This silica gel had a third-order optical non-linearity and it s susceptibility, chi(3), was about 7 x 10(-12) esu.