SOL-GEL SYNTHESIS OF CADMIUM TELLURIDE-MICROCRYSTAL-DOPED SILICA GLASSES

被引：35

作者：

NOGAMI, M

NAGASAKA, K

SUZUKI, T

机构：

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

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 01期

关键词：

SEMICONDUCTORS; GLASS; CADMIUM TELLURIDE; SOL-GEL; OPTICAL PROPERTIES;

D O I：

10.1111/j.1151-2916.1992.tb05471.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 to the preparation of small-sized CdTe-doped silica glasses. Gels synthesized by the hydrolysis of a complex solution of Si(OC2H5)4, Cd(CH3COO)2.2H2O, and Te were heated from 350-degrees to 600-degrees-C in a H2-N2 atmosphere to form fine cubic CdTe crystals. The size of CdTe crystals, determined from the line broadening of X-ray diffraction pattern, increases from 4 to 9 nm in diameter with increasing heat-treatment temperature. The optical absorption edge shifts to the higher-energy side as the size of the CdTe crystals decreases. This phenomenon is interpreted in terms of a quantum confinement effect of electron and hole in the CdTe microcrystals.

引用

页码：220 / 223

页数：4

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