THE ANODIC-DISSOLUTION OF INP STUDIED BY THE OPTOELECTRICAL IMPEDANCE METHOD .2. INTERACTION BETWEEN ANODIC AND CHEMICAL ETCHING OF INP IN IODIC ACID-SOLUTIONS

被引:5
|
作者
VERMEIR, IE [1 ]
GOMES, WP [1 ]
ERNE, BH [1 ]
VANMAEKELBERGH, D [1 ]
机构
[1] UNIV UTRECHT,DEBYE RES INST,3508 TA UTRECHT,NETHERLANDS
关键词
PHOTOELECTROCHEMISTRY; INDIUM PHOSPHIDE; OPTOELECTRICAL IMPEDANCE SPECTROSCOPY; ANODIC DISSOLUTION MECHANISMS;
D O I
10.1016/0013-4686(93)80154-R
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The photocurrent enhancement by HIO3 at the n-InP anode was studied by a combination of dc and optoelectrical impedance measurements. It was found that this enhancement is connected with the anodic dissolution of the semiconductor itself. A reaction scheme is proposed for the dissolution mechanism, involving two competing reaction pathways, ie a mixed chemical-electrochemical and a purely electrochemical one, each with chemically different decomposition intermediates.
引用
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页码:2569 / 2575
页数:7
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