Anodic behavior of InP: film growth, porous structures and current oscillations.

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dc.contributor.author Buckley, D. Noel
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Harvey, E.
dc.contributor.author Melly, T.
dc.contributor.author Sutton, David
dc.contributor.author Newcomb, Simon B.
dc.date.accessioned 2016-07-21T08:54:17Z
dc.date.available 2016-07-21T08:54:17Z
dc.date.issued 2003-04
dc.identifier.citation Buckley, D. N., O’Dwyer, C., Harvey, E., Melly, T., Sutton, D. and Newcomb, S. B. (2003) 'Anodic behavior of InP: film growth, porous structures and current oscillations', State-of-the-Art Program on Compound Semiconductors (SOTAPOCS XXXVIII) and Wide-Bandgap Semiconductors for Photonic and Electronic Devices and Sensors III, 203rd ECS Meeting, Palais des Congres de Paris, France, 27 April - 2 May. Proceedings - Electrochemical Society, Vol. 4, pp. 48-62. ISBN 1-56677-349-0. en
dc.identifier.volume 4 en
dc.identifier.startpage 48 en
dc.identifier.endpage 62 en
dc.identifier.isbn 1-56677-349-0
dc.identifier.uri http://hdl.handle.net/10468/2909
dc.description.abstract We review our recent work on the anodization of InP in KOH electrolytes. The anodic oxidation processes are shown to be remarkably different in different concentrations of KOH. Anodization in 2 - 5 mol dm-3 KOH electrolytes results in the formation of porous InP layers but, under similar conditions in a 1 mol dm-3 KOH, no porous structure is evident. Rather, the InP electrode is covered with a thin, compact surface film at lower potentials and, at higher potentials, a highly porous surface film is formed which cracks on drying. Anodization of electrodes in 2 - 5 mol dm-3 KOH results in the formation of porous InP under both potential sweep and constant potential conditions. The porosity is estimated at ~65%. A thin layer (~ 30 nm) close to the surface appears to be unmodified. It is observed that this dense, near-surface layer is penetrated by a low density of pores which appear to connected it to the electrolyte. Well-defined oscillations are observed when InP is anodized in both the KOH and (NH4)2S. The charge per cycle remains constant at 0.32 C cm-2 in (NH4)2S but increases linearly with potential in KOH. Although the characteristics of the oscillations in the two systems differ, both show reproducible and well-behaved values of charge per cycle. en
dc.description.uri http://www.electrochem.org/203 en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Electrochemical Society en
dc.relation.uri http://www.electrochem.org/dl/pv/published/2003/2003.htm
dc.rights © 2003, Electrochemical Society en
dc.subject KOH electrolytes en
dc.subject Anodic formation en
dc.subject Transmission electron microscopy en
dc.subject Anodization en
dc.subject Anodic oxidation en
dc.subject Oscillatory behavior en
dc.title Anodic behavior of InP: film growth, porous structures and current oscillations. en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2012-11-30T12:12:07Z
dc.description.version Accepted Version en
dc.internal.rssid 162343097
dc.description.status Peer reviewed en
dc.identifier.journaltitle Proceedings - Electrochemical Society en
dc.internal.copyrightchecked No. !!CORA!! Yes en
dc.internal.licenseacceptance Yes en
dc.internal.conferencelocation Paris, France en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


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