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 dissolution mechanism, involving two competing reaction pathways, ie a mixed chemical-electrochemical and a purely electrochemical one, each with chemically different decomposition intermediates.
Original language | English |
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Pages (from-to) | 2569-2575 |
Number of pages | 7 |
Journal | Electrochimica Acta |
Volume | 38 |
Issue number | 17 |
DOIs | |
Publication status | Published - Dec 1993 |
Bibliographical note
Funding Information:Acknowledgements-&e of the authors (I.E.V.) thanks the N.F.W.O. (National Fund for Scientific Research, Belgium) for financial supporwt hich enabled her to stay at the University of Utrecht (NL) in order to perform the optoelectri-cal impedancem easurements.
Funding
Acknowledgements-&e of the authors (I.E.V.) thanks the N.F.W.O. (National Fund for Scientific Research, Belgium) for financial supporwt hich enabled her to stay at the University of Utrecht (NL) in order to perform the optoelectri-cal impedancem easurements.
Keywords
- anodic dissolution mechanisms.
- indium phosphide
- optoelectrical impedance spectroscopy
- photoelectrochemistry