DETERMINATION OF THE FLAT-BAND POTENTIAL OF SEMICONDUCTOR PARTICLES IN SUSPENSION BY PHOTOVOLTAGE MEASUREMENT

被引：110
|
作者：
ROY, AM
DE, GC
SASMAL, N
BHATTACHARYYA, SS
机构：
[1] Department of Chemical Technology, Calcutta University, Calcutta, 700 009, 92 Acharya Prafulla, Chandra Road
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1995年 / 20卷 / 08期
关键词：
D O I：
10.1016/0360-3199(94)00105-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The flatband potentials, E(fb), of CdS and CdS/Ag2S (1.5wt%) particles have been determined from photovoltage measurements in the presence of electron acceptor methyl viologen (MV(2+)). Measurements have been taken whilst irradiating the semiconductor suspensions with visible light. This is one of the simplest and newly developed techniques for the determination of the E(fb) of semiconductors. The E(fb) for CdS and CdS/Ag2S (1.5wt%) are found to be -0.724 V and -0.761 V respectively vs SCE at pH 14.
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页码：627 / 630
页数：4
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