In-situ observations of nanoscale effects in germanium nanowire growth with ternary eutectic alloys

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dc.contributor.author Biswas, Subhajit
dc.contributor.author O'Regan, Colm
dc.contributor.author Morris, Michael A.
dc.contributor.author Holmes, Justin D.
dc.date.accessioned 2016-02-02T14:58:03Z
dc.date.available 2016-02-02T14:58:03Z
dc.date.issued 2014-09-05
dc.identifier.citation BISWAS, S., O'REGAN, C., MORRIS, M. A. & HOLMES, J. D. 2015. In-situ Observations of Nanoscale Effects in Germanium Nanowire Growth with Ternary Eutectic Alloys. Small, 11, 103-111. http://dx.doi.org/10.1002/smll.201401240 en
dc.identifier.volume 11 en
dc.identifier.issued 1 en
dc.identifier.startpage 103 en
dc.identifier.endpage 111 en
dc.identifier.issn 1613-6829
dc.identifier.uri http://hdl.handle.net/10468/2242
dc.identifier.doi 10.1002/smll.201401240
dc.description.abstract Vapour-liquid-solid (VLS) techniques are popular routes for the scalable synthesis of semiconductor nanowires. In this article, in-situ electron microscopy is used to correlate the equilibrium content of ternary (Au0.75Ag0.25–Ge and Au0.65Ag0.35–Ge) metastable alloys with the kinetics, thermodynamics and diameter of Ge nanowires grown via a VLS mechanism. The shape and geometry of the heterogeneous interfaces between the liquid eutectic and solid Ge nanowires varies as a function of nanowire diameter and eutectic alloy composition. The behaviour of the faceted heterogeneous liquid–solid interface correlates with the growth kinetics of the nanowires, where the main growth facet at the solid nanowire–liquid catalyst drop contact line lengthens for faster nanowire growth kinetics. Pronounced diameter dependent growth kinetics, as inferred from liquid–solid interfacial behaviour, is apparent for the synthesised nanowires. Direct in-situ microscopy observations facilitates the comparison between the nanowire growth behaviour from ternary (Au–Ag–Ge) and binary (Au–Ge) eutectic systems. en
dc.description.sponsorship Science Foundation Ireland (Grant: 09/IN.1/I2602) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Wiley-VCH en
dc.relation.uri http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1613-6829
dc.rights © 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Biswas, S., O'Regan, C., Morris, M. A. and Holmes, J. D. (2015), In-situ Observations of Nanoscale Effects in Germanium Nanowire Growth with Ternary Eutectic Alloys. Small, 11: 103–111. doi:10.1002/smll.201401240, which has been published in final form at http://dx.doi.org/10.1002/smll.201401240. en
dc.subject Alloys en
dc.subject Eutectics en
dc.subject Germanium en
dc.subject Germanium alloys en
dc.subject Growth kinetics en
dc.subject Kinetics en
dc.subject Liquids en
dc.subject Nanowires en
dc.subject Silver en
dc.subject Silver alloys en
dc.subject Thermodynamics en
dc.subject Heterogeneous interfaces en
dc.subject In-situ electron microscopy en
dc.subject In-situ microscopies en
dc.subject In-situ observations en
dc.subject Liquid-solid interfaces en
dc.subject Nanowire growth kinetics en
dc.subject Semiconductor nanowire en
dc.subject Ternary eutectic alloys en
dc.subject Phase interfaces en
dc.subject VLS en
dc.subject TEM en
dc.title In-situ observations of nanoscale effects in germanium nanowire growth with ternary eutectic alloys en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2015-01-06T15:23:38Z
dc.description.version Accepted Version en
dc.internal.rssid 285526264
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Small en
dc.internal.copyrightchecked No. !!CORA!! Wiley permits self archive to institutional repository. Accepted version 12 month embargo. http://www.wiley-vch.de/util/cta/PS_Global.pdf en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress j.holmes@ucc.ie en


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