CURRENT PHOTORESPONSE OF AN ELECTROLYTE-ZINC SELENIDE JUNCTION

被引：8

作者：

LEMASSON, P ^{[1
]}

GAUTRON, J ^{[1
]}

机构：

[1] UNIV TOURS,PHYS MAT SOLIDES LAB,F-37000 TOURS,FRANCE

来源：

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1979年 / 53卷 / 01期

关键词：

D O I：

10.1002/pssa.2210530135

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photocurrents obtained by excitation of an electrolyte–zinc selenide junction with the aid of photons whose energy is lower than the semiconductor band gap (2.7 eV) are analyzed. It is possible to explain the shape of the experimentally obtained photoresponses by transfer of photoexcited electrons from the valence band to energy levels located below the conduction band, followed by another transfer from this level to the conduction band. The last effect can be expressed by a Poole‐Frenkel mechanism for the deeper level, tunnelling accounting for the response (current) obtained with electrons photoexcited closer of the conduction band. In each case, the flat band potential value is determined and compared with results obtained by impedance measurement. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaA

引用

页码：303 / 309

页数：7