GROWTH STUDY CONCERNING CD(S, SE) NANOCRYSTALS IN SILICATE GLASS - HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPY (HRTEM)

被引：9

作者：

ALLAIS, M ^{[1
]}

GANDAIS, M ^{[1
]}

机构：

[1] UNIV PARIS 07,F-75252 PARIS 05,FRANCE

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1991年 / 9卷 / 04期

关键词：

D O I：

10.1016/0921-5107(91)90067-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cd(S,Se)-doped glasses were heated at various temperatures and times and were examined by high resolution electron microscopy, in order to study the formation and growth of Cd(S,Se) nanocrystals responsible for the optical properties. At 600-degrees-C, the growth was found to be very slow: after 8 days of heat treatment, the nanocrystal sizes ranged between 2 and 8 nm with an average value S(a) almost-equal-to 4 nm. The growth rate increased with increasing temperature. At constant time (t = 2 days), crystallites with average sizes around 6 nm, 15 nm and 25 nm were found respectively for heating temperatures close to 630-degrees-C, 690-degrees-C and 750-degrees-C. This range of temperature is the most favourable for future studies of the growth kinetics.

引用

页码：429 / 432

页数：4