Growth, structural and optical properties of GaAs/AlGaAs Core/shell nanowires with and without quantum well shells

Hannah J. Joyce, Y. Kim, Q. Gao, H. H. Tan, C. Jagadish

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

    8 Citations (Scopus)

    Abstract

    We have investigated the growth, structural properties and photoluminescence of novel GaAs/AlGaAs radial heterostructure nanowires, fabricated by metalorganic chemical vapour deposition. The effect of growth temperature on nanowire morphology is discussed. Strong photoluminescence is observed from GaAs nanowires with AlGaAs shells. Core/multishell nanowires, of GaAs cores clad in several alternating layers of thick AlGaAs barrier shells and thin GaAs quantum well shells, exhibit a blue-shifted photoluminescence peak believed to arise from quantum confinement effects. A novel two-temperature growth procedure for obtaining GaAs cores is introduced, and other nanowire heterostructures are addressed.

    Original languageEnglish
    Title of host publicationProceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN
    Pages450-453
    Number of pages4
    DOIs
    Publication statusPublished - 2006
    Event2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006 - Brisbane, Australia
    Duration: 3 Jul 20066 Jul 2006

    Publication series

    NameProceedings of the 2006 International Conference on Nanoscience and Nanotechnology, ICONN

    Conference

    Conference2006 International Conference on Nanoscience and Nanotechnology, ICONN 2006
    Country/TerritoryAustralia
    CityBrisbane
    Period3/07/066/07/06

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