ZnO Coaxial Nanorod Homojunction UV Light-Emitting Diodes Prepared by Aqueous Solution Method

Authors

  • Xuan Sang Nguyen,

    1. Singapore MIT Alliance, National University of Singapore, E4-04-10; 4 Engineering Drive 3, Singapore 117576, Singapore
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  • Chuan Beng Tay,

    1. NUSNNI-Nanocore Laboratory, Faculty of Engineering, National University of Singapore, E3-05-29, 2 Engineering Drive 3, Singapore 117581, Singapore
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  • Eugene A. Fitzgerald,

    1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USA
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  • Soo Jin Chua

    Corresponding author
    1. Singapore MIT Alliance, National University of Singapore, E4-04-10; 4 Engineering Drive 3, Singapore 117576, Singapore
    2. NUSNNI-Nanocore Laboratory, Faculty of Engineering, National University of Singapore, E3-05-29, 2 Engineering Drive 3, Singapore 117581, Singapore
    3. Insitute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research, 3 Research Link, Singapore 117602, Singapore
    • Singapore MIT Alliance, National University of Singapore, E4-04-10; 4 Engineering Drive 3, Singapore 117576, Singapore.
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Abstract

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The fabrication of a p-shell/n-core coaxial nanorod ZnO homojunction light-emitting diode by inexpensive solution method is demonstrated. The p-type conductivity of the ZnO shell arises from the incorporation of potassium while the n-type conductivity of the core is due to unintentional doping.

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