POROUS SILICA GLASSES DOPED WITH QUANTUM-CONFINED CADMIUM SELENIDE

被引：38

作者：

COFFER, JL ^{[1
]}

BEAUCHAMP, G ^{[1
]}

ZERDA, TW ^{[1
]}

机构：

[1] TEXAS CHRISTIAN UNIV,DEPT PHYS,FT WORTH,TX 76129

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1992年 / 142卷 / 03期

基金：

美国国家卫生研究院;

关键词：

D O I：

10.1016/S0022-3093(05)80027-4

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 formation of stable cadmium selenide-doped silica glasses, via semiconductor diffusion into a porous glass obtained using a sol-gel process, is described. Exposure of quantum-confined ('Q-state') CdSe clusters, of average diameter 30 angstrom and dissolved in an ethylpyridine solution, to a colorless sol-gel disk possessing an average pore diameter of 35 angstrom yields an intense red-green glass within hours. Subsequent drying and heat treatment up to 200-degrees-C does not degrade the samples. These CdSe-doped glasses are characterized by both absorption and emission (photoluminescence) spectroscopy as well as surface area measurements. The effect of different functional groups present in the gel pores, Cl- versus OH-, on the properties of the diffused CdSe is also reported.

引用

页码：208 / 214

页数：7

共 33 条

[1] ELECTRONIC-STRUCTURE AND PHOTOEXCITED-CARRIER DYNAMICS IN NANOMETER-SIZE CDSE CLUSTERS [J].