THE PHOTODISSOLUTION OF INP

被引:22
作者
PREUSSER, S [1 ]
HERLEM, M [1 ]
ETCHEBERRY, A [1 ]
JAUME, J [1 ]
机构
[1] CNRS,ELECTROCHIM INTERFACIALE LAB,1 PL A BRIAND,F-92195 MEUDON,FRANCE
关键词
PHOTOELECTROCHEMISTRY; INDIUM PHOSPHIDE; PHOTODISSOLUTION; PHOTODECOMPOSITION; MECHANISM; OXIDATION;
D O I
10.1016/0013-4686(92)85015-D
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The linear dependency of the n-InP photocurrent on the level of illumination is independent of the solution composition, the type of illumination, the exposed crystalline face, or the level of doping. The photodissolution mechanism (for photocurrents between 1.1 and 65 mA cm-2) utilizes six charges to dissolve one molecule. In the absence of an insoluble oxide layer, the ratio between photogenerated holes and injected electrons is independent of the exposed crystalline face, the photon flux, the solution composition and the level of doping. Solutions containing oxygen bearing mineral anions (such as ClO4-, H2PO2-, or SO42-) are predisposed to the formation of an insoluble oxide layer on the surface of InP under strong illumination.
引用
收藏
页码:289 / 295
页数:7
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