PREPARATION OF SMALL-PARTICLE-SIZE, SEMICONDUCTOR CDS-DOPED SILICA GLASSES BY THE SOL-GEL PROCESS

被引：91

作者：

NOGAMI, M

NAGASKA, K

KATO, E

机构：

[1] Department of Applied Chemistry, Aichi Institute of Technology, Toyota, 470-03

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 07期

关键词：

glass; processing; semiconductor; silica; sol–gel;

D O I：

10.1111/j.1151-2916.1990.tb05275.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The sol–gel process has been applied successfully to the preparation of small‐particle‐size CdS‐doped silica glasses with a significant quantum size effect. Gels prepared through the hydrolysis of a complex solution of Si(OC2H5)4 and Cd(CH3COO)2·2H2O were heated at 500°C, then reacted with H2S gas to form fine, hexagonal, CdS‐microcrystal‐doped glasses. The optical absorption edge is blue shifted by ∼0.4 eV compared with the bulk absorption value of CdS crystal. This result is interpreted in terms of a quantum‐confinement effect of small crystal size. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2097 / 2099

页数：3