Electrochemical formation of nanoporosity in n-InP anodes in KOH

Show simple item record

dc.contributor.author Buckley, D. Noel
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Lynch, Robert P.
dc.contributor.author Quill, Nathan
dc.date.accessioned 2013-02-26T12:26:46Z
dc.date.available 2013-02-26T12:26:46Z
dc.date.copyright 2011
dc.date.issued 2011-01
dc.identifier.citation Buckley, D. N.,O'Dwyer, C.,Lynch, R. P.,Quill, N. (2011) 'Electrochemical Formation of Nanoporosity in n-InP Anodes in KOH'. ECS Trans, 35(8), pp.29-48. doi: 10.1149/1.3567735 en
dc.identifier.volume 35 en
dc.identifier.issued 8 en
dc.identifier.startpage 29 en
dc.identifier.endpage 48 en
dc.identifier.issn 1938-5862
dc.identifier.issn 1938-6737
dc.identifier.uri http://hdl.handle.net/10468/990
dc.identifier.doi 10.1149/1.3567735
dc.description.abstract We review our recent work on anodic formation of nanoporosity in n-InP in aqueous KOH. Typically, a nanoporous sub-surface region is formed beneath a thin, dense near-surface layer. Atomic force microscopy (AFM) shows pit formation on the surface in the earlier stages of etching, and transmission electron microscopy (TEM) shows individual nanoporous domains separated from the surface by a thin InP layer. Each domain develops from a surface pit. We developed a model based on propagation of pores along the <111>A directions. The model predicts porous domains with a truncated tetrahedral shape and this was confirmed by scanning electron microscopy (SEM) and TEM. Pores are cylindrical and have well-developed facets only near their tips. No porous layers are observed at a KOH concentration of 1.1 mol dm -2 or lower. Linear sweep voltammograms (LSVs) show a pronounced anodic peak corresponding to the formation of the porous region. We describe a technique to deconvolute the effects of potential and time in LSVs and explain their shape and their relationship to porous layer formation. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher The Electrochemical Society en
dc.relation.uri http://ecst.ecsdl.org/content/35/8/29
dc.rights © The Electrochemical Society, Inc. 2011. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Buckley, D. N.,O'Dwyer, C.,Lynch, R. P.,Quill, N. (2011) 'Electrochemical Formation of Nanoporosity in n-InP Anodes in KOH'. ECS Trans, 35(8), pp.29-48. doi: 10.1149/1.3567735 en
dc.subject Nanoporosity en
dc.subject Atomic force microscopy (AFM) en
dc.subject Transmission electron microscopy (TEM) en
dc.subject Scanning electron microscopy (SEM) en
dc.subject Linear sweep voltammogram (LSV) en
dc.subject.lcsh Electrochemistry en
dc.title Electrochemical formation of nanoporosity in n-InP anodes in KOH en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://research.ucc.ie/profiles/D004/codwyer 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 2012-11-29T17:26:38Z
dc.description.version Accepted Version en
dc.internal.rssid 162343101
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle ECS Transactions en
dc.internal.copyrightchecked No. CORA - AV and set statement. en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


Files in this item

This item appears in the following Collection(s)

Show simple item record

This website uses cookies. By using this website, you consent to the use of cookies in accordance with the UCC Privacy and Cookies Statement. For more information about cookies and how you can disable them, visit our Privacy and Cookies statement