FREQUENCY-RESOLVED PHOTOCONDUCTIVITY OF BULK CDS SINGLE-CRYSTALS

被引：0
|
作者：
BELAL, AE
ELMONGY, AA
ELDOSOKY, N
机构：
[1] Physics Department, Faculty of Science, Assiut University, Aswan
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 1994年 / 29卷 / 08期
关键词：
D O I：
10.1002/crat.2170290812
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Photoconductivity measurements in CdS single crystal showed that a.c. photoconductivity decays as omega(-s), with s value = {1 + alpha} for omega > 1/tau and = {1 - alpha} for omega < 1/tau. At low frequency values, recombination might be controlled by monomolecular behaviour. As the frequency increases bimolecular behaviour, in shallow states, dominates. Direct recombination is found to be weak dependent on both the intensity and applied voltage. However when band tail recombination is dominant (at higher frequencies), strong dependence is observed.
引用
收藏
页码：1103 / 1108
页数：6
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