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dc.contributor.authorGamalski, Andrew D
dc.contributor.authorVoorhees, Peter W
dc.contributor.authorDucati, Caterina
dc.contributor.authorSharma, Renu
dc.contributor.authorHofmann, Stephan
dc.date.accessioned2015-02-18T11:47:55Z
dc.date.available2015-02-18T11:47:55Z
dc.date.issued2014-03-12
dc.identifier.citationAD Gamalski, PW Voorhees, C Ducati, R Sharma, S Hofmann, Nano Letters 2014, 14, 1288–1292
dc.identifier.issn1530-6984
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/246853
dc.description.abstractA twin-plane based nanowire growth mechanism is established using Au catalyzed Ge nanowire growth as a model system. Video-rate lattice-resolved environmental transmission electron microscopy shows a convex, V-shaped liquid catalyst-nanowire growth interface for a ⟨112⟩ growth direction that is composed of two Ge {111} planes that meet at a twin boundary. Unlike bulk crystals, the nanowire geometry allows steady-state growth with a single twin boundary at the nanowire center. We suggest that the nucleation barrier at the twin-plane re-entrant groove is effectively reduced by the line energy, and hence the twin acts as a preferential nucleation site that dictates the lateral step flow cycle which constitutes nanowire growth.
dc.description.sponsorshipS. H. acknowledges funding from ERC grant InsituNANO (project number 279342). A. D. G. acknowledges funding from the Marshall Aid Commemoration Commission and the National Science Foundation. C. D. acknowledge funding from the Royal Society. P.V. acknowledges the support of ONR grant N00014-12-1-0198. We gratefully acknowledge the use of facilities within the LeRoy Eyring Center for Solid State Science at Arizona State University.
dc.languageEnglish
dc.language.isoen
dc.publisherAmerican Chemical Society (ACS)
dc.subjectNanowire
dc.subjectenvironmental transmission electron microscopy
dc.subjecttwin plane re-entrant mechanism
dc.subjectvapor−liquid−solid growth model
dc.titleTwin plane re-entrant mechanism for catalytic nanowire growth.
dc.typeArticle
dc.description.versionThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/nl404244u. (AD Gamalski, PW Voorhees, C Ducati, R Sharma, S Hofmann, Nano Letters 2014, 14, 1288–1292)
prism.endingPage1292
prism.publicationDate2014
prism.publicationNameNano Lett
prism.startingPage1288
prism.volume14
dc.rioxxterms.funderERC
dc.rioxxterms.funderMarshall Aid Commemoration Commission
dc.rioxxterms.funderNational Science Foundation
dc.rioxxterms.funderRoyal Society
dc.rioxxterms.funderONR
dc.rioxxterms.projectid279342
dc.rioxxterms.projectidN00014-12-1-0198
rioxxterms.versionofrecord10.1021/nl404244u
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2014-02-14
dc.contributor.orcidDucati, Caterina [0000-0003-3366-6442]
dc.contributor.orcidHofmann, Stephan [0000-0001-6375-1459]
dc.identifier.eissn1530-6992
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (279342)
cam.issuedOnline2014-02-24


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