Sidewall evolution in VLS grown GaAs nanowires

Nian Jiang, Jennifer Wong-Leung, Qiang Gao, Hark Hoe Tan, Chennupati Jagadish

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The sidewalk of Au-catalysed GaAs nanowires are studied systematically by using transmission electron microscopy. The cross-sectional shape of the VLS grown nanowires was found to consist of 3 curved surfaces along {112}A. The curved surfaces evolve into three {112}A and three {112}B facets towards the base of the nanowire due to the radial growth around the nanowire. These sidewalls transform to {110} facets at high temperature annealing and the transformation rate is determined by the cross-sectional shape and size of the nanowires.

    Original languageEnglish
    Title of host publication2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014
    EditorsMariusz Martyniuk, Lorenzo Faraone
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages87-89
    Number of pages3
    ISBN (Electronic)9781479968671
    DOIs
    Publication statusPublished - 10 Feb 2014
    Event2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014 - Perth, Australia
    Duration: 14 Dec 201417 Dec 2014

    Publication series

    Name2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014

    Conference

    Conference2014 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2014
    Country/TerritoryAustralia
    CityPerth
    Period14/12/1417/12/14

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