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

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dc.contributor.authorLynch, Robert P.
dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorQuill, Nathan
dc.contributor.authorNakahara, Shohei
dc.contributor.authorNewcomb, Simon B.
dc.contributor.authorBuckley, D. Noel
dc.contributor.funderIrish Research Councilen
dc.contributor.funderFP7 People: Marie-Curie Actionsen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2018-05-21T15:10:36Z
dc.date.available2018-05-21T15:10:36Z
dc.date.issued2013-04
dc.date.updated2018-05-16T00:12:27Z
dc.description.abstractPore 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.sponsorshipIrish Research Council (PhD scholarships);en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLynch, 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: 10.1149/2.107306jesen
dc.identifier.doi10.1149/2.107306jes
dc.identifier.endpageD270en
dc.identifier.issn0013-4651
dc.identifier.issn1945-7111
dc.identifier.journaltitleJournal of the Electrochemical Societyen
dc.identifier.startpageD260en
dc.identifier.urihttp://jes.ecsdl.org/content/160/6/D260.abstract
dc.identifier.urihttps://hdl.handle.net/10468/6163
dc.identifier.volume160en
dc.language.isoenen
dc.publisherElectrochemical Societyen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/229520/EU/IRCSET International Mobility Fellowships in Science Engineering and Technology: co-funded by Marie Curie Actions/INSPIREen
dc.relation.projectSFI-funded National Access Program (Project NAP No. 37 and 70) Tyndall National Instituteen
dc.rights© 2013 The Electrochemical Societyen
dc.subjectGeometryen
dc.subjectAspect ratioen
dc.subjectComputational mechanicsen
dc.subjectTransmission electron microscopyen
dc.subjectCleavage planeen
dc.subjectCrystallographic directionsen
dc.subjectDetailed modellingen
dc.subjectPorous domainen
dc.subjectPropagation directionen
dc.subjectScanning and transmission electron microscopyen
dc.subjectSEM observationen
dc.subjectSurface planesen
dc.titlePore propagation directions and nanoporous domain shape in n-InP anodized in KOHen
dc.typeArticle (peer-reviewed)en
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