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

Authors
VERMEIR IE GOMES WP ERNE BH VANMAEKELBERGH D
Citation
Ie. Vermeir et al., THE ANODIC-DISSOLUTION OF INP STUDIED BY THE OPTOELECTRICAL IMPEDANCEMETHOD .2. INTERACTION BETWEEN ANODIC AND CHEMICAL ETCHING OF INP IN IODIC ACID-SOLUTIONS, Electrochimica acta, 38(17), 1993, pp. 2569-2575
Citations number
14
Categorie Soggetti
Electrochemistry
Journal title
Electrochimica acta → ACNP
ISSN journal
00134686
Volume
38
Issue
17
Year of publication
1993
Pages
2569 - 2575
Database
ISI
SICI code
0013-4686(1993)38:17<2569:TAOISB>2.0.ZU;2-H
Abstract
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 dis solution mechanism, involving two competing reaction pathways, ie a mi xed chemical-electrochemical and a purely electrochemical one, each wi th chemically different decomposition intermediates.