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The anodic dissolution of InP studied by the optoelectrical impedance method—2. Interaction between anodic and chemical etching of InP in iodic acid solutions

✍ Scribed by I.E. Vermier; W.P. Gomes; B.H. Erné; D. Vanmaekelbergh

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 764 KB
Volume: 38
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(93)80154-r

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✦ Synopsis

Ahstrati-The photocurrent enhancement by HIO, 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 chemical4ectrochemical and a purely electrochemical one, each with chemically different de-composition intermediates.

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The anodic dissolution of InP studied by the optoelectrical impedance method—1. Competition between electron injection and hole capture at InP photoanodes

✍ B.H. Erné; D. Vanmaekelbergh; I.E. Vermeir 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 891 KB

The photoanodic dissolution of n-InP in hydrochloric acid (pH 0) was studied by a combination of dc measurements and optoelectrical impedance measurements. It was found that electron injection from decomposition intermediates into the conduction band competes with hole capture in three of the six el