Pore propagation directions and nanoporous domain shape in n-InP anodized in KOH

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dc.contributor.author Lynch, Robert P.
dc.contributor.author O'Dwyer, Colm
dc.contributor.author Quill, Nathan
dc.contributor.author Nakahara, Shohei
dc.contributor.author Newcomb, Simon B.
dc.contributor.author Buckley, D. Noel
dc.date.accessioned 2018-05-21T15:10:36Z
dc.date.available 2018-05-21T15:10:36Z
dc.date.issued 2013-04
dc.identifier.citation Lynch, R. P., O’Dwyer, C., Quill, N., Nakahara, S., Newcomb, S. B. and Noel Buckley, D. (2013) 'Pore Propagation Directions and Nanoporous Domain Shape in n-InP Anodized in KOH', Journal of The Electrochemical Society, 160(6), pp. D260-D270. doi: 10.1149/2.107306jes en
dc.identifier.volume 160 en
dc.identifier.startpage D260 en
dc.identifier.endpage D270 en
dc.identifier.issn 0013-4651
dc.identifier.issn 1945-7111
dc.identifier.uri http://jes.ecsdl.org/content/160/6/D260.abstract
dc.identifier.uri http://hdl.handle.net/10468/6163
dc.identifier.doi 10.1149/2.107306jes
dc.description.abstract Pore propagation during anodization of (100) n-InP electrodes in aqueous KOH was studied in detail by scanning and transmission electron microscopy (SEM and TEM). Pores emanating from surface pits propagate along the 〈111〉A crystallographic directions to form, in the early stages of anodization, porous domains with the shape of a tetrahedron truncated symmetrically through its center by a plane parallel to the surface of the electrode. This was confirmed by comparing the predictions of a detailed model of pore propagation with SEM and TEM observations. The model showed in detail how 〈111〉A pore propagation leads to domains with the shape of a tetrahedron truncated by a (100) plane. Observed cross sections corresponded in detail and with good precision to those predicted by the model. SEM and TEM showed that cross sections were trapezoidal and triangular, respectively, in the two cleavage planes of the wafer, and TEM showed that they were rectangular parallel to the surface plane, as predicted. Aspect ratios and angles calculated from observed cross sections were in good agreement with predicted values. The pore patterns observed were also in good agreement with those predicted and SEM observations of the surface further confirmed details of the model. en
dc.description.sponsorship Irish Research Council (PhD scholarships); en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Electrochemical Society en
dc.rights © 2013 The Electrochemical Society en
dc.subject Geometry en
dc.subject Aspect ratio en
dc.subject Computational mechanics en
dc.subject Transmission electron microscopy en
dc.subject Cleavage plane en
dc.subject Crystallographic directions en
dc.subject Detailed modelling en
dc.subject Porous domain en
dc.subject Propagation direction en
dc.subject Scanning and transmission electron microscopy en
dc.subject SEM observation en
dc.subject Surface planes en
dc.title Pore propagation directions and nanoporous domain shape in n-InP anodized in KOH 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 2018-05-16T00:12:27Z
dc.description.version Accepted Version en
dc.internal.rssid 206179939
dc.contributor.funder Irish Research Council en
dc.contributor.funder FP7 People: Marie-Curie Actions en
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of the Electrochemical Society en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/229520/EU/IRCSET International Mobility Fellowships in Science Engineering and Technology: co-funded by Marie Curie Actions/INSPIRE en
dc.relation.project SFI-funded National Access Program (Project NAP No. 37 and 70) Tyndall National Institute en

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