ZnCdTe-ZnTe多量子阱的电场效应  

EFFECT OF ELECTRIC FIELD ON ZnCdTe ZnTe MULTIPLE QUANTUM WELLs

作　　者：郑伟 范希武[1,2] 张吉英[1,2] 郑著宏[1,2] 杨宝均[1,2] 申德振 

机构地区：[1]中国科学院长春物理研究所 [2]中国科学院激发态物理开放研究实验室

出　　处：《发光学报》1997年第2期122-126,共5页Chinese Journal of Luminescence

基　　金：国家自然科学基金;中国科学院激发态物理开放研究实验室资助

摘　　要：本文报导了电场作用下ＺｎＣｄＴｅ－ＺｎＴｅ多量子阱的激子发光特性．用激子局域化的观点解释了激子发光峰随电场增强而增强的现象．在Ｚｎ０．８Ｃｄ０．The characterizations of exciton emission in ZnCdTe ZnTe MQWs under electric field have been reported in this paper. The changs of the exciton peaks in Zn 0 67 Cd 0 33 Te(6 nm) ZnTe(6 nm) MQWs is very small, when electric field increases, peak position shifts about 1 5meV to the lower energy side, when voltage increases from 0 to 19V and peak intensity of this sample increases about 15%. In contrast, the n =1 heavy hole exciton peaks of Zn 0 8 Cd 0 2 Te ZnTe changed greatly as voltage increased from 6 to 8 V, exciton peak position shifts about 59%. The variation in exciton peak intensities between the two samples have been explained in exciton localization view point. The large shift of Zn 0.8 Cd 0.2 Te ZnTe MQWs exciton peaks is due to the bigger quantum confined Stark effect.

关 键 词：多量子阱 激子局域化 量子限制 STARK效应 

分 类 号：TN201[电子电信—物理电子学]