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  • Morphology-Dependent Stimulated Emission and Field Emission of Ordered CdS Nanostructure Arrays

    Author(s)
    Zhai, Tianyou
    Fang, Xiaosheng
    Bando, Yoshio
    Liao, Qing
    Xu, Xijin
    Zeng, Haibo
    Ma, Ying
    Yao, Jiannian
    Golberg, Dmitri
    Griffith University Author(s)
    Xu, Xijin
    Year published
    2009
    Metadata
    Show full item record
    Abstract
    Highly ordered CdS nanostructure arrays were successfully fabricated via a simple two-step metal-organic chemical vapor deposition process. Both stimulated emission and field-emission measurements were carried out in an attempt to understand the correlation between the morphologies, alignments, and emission performances of five ordered CdS nanostructure array types (well-aligned truncated nanocones, nanorods, cleft nanorods, quasi-aligned nanowires, and nanowires). The 1D CdS nanostructures of various types displayed notable differences in stimulated and field-emission performances. The stimulated emission strongly correlated ...
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    Highly ordered CdS nanostructure arrays were successfully fabricated via a simple two-step metal-organic chemical vapor deposition process. Both stimulated emission and field-emission measurements were carried out in an attempt to understand the correlation between the morphologies, alignments, and emission performances of five ordered CdS nanostructure array types (well-aligned truncated nanocones, nanorods, cleft nanorods, quasi-aligned nanowires, and nanowires). The 1D CdS nanostructures of various types displayed notable differences in stimulated and field-emission performances. The stimulated emission strongly correlated with the structure alignment: the better the alignment, the lower the threshold. Both of the alignments and aspect ratios greatly affected the field-emission properties; the CdS emitters of higher aspect ratio and better alignment exhibited better field-emission performance. Thus the well-aligned CdS nanorod arrays had the lower threshold for stimulated emission, and quasi-aligned nanowire arrays produced the higher field-emission current and possessed the lower turn-on fields.
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    Journal Title
    ACS Nano
    Volume
    3
    Issue
    4
    DOI
    https://doi.org/10.1021/nn800895k
    Copyright Statement
    Self-archiving of the author-manuscript version is not yet supported by this journal. Please refer to the journal link for access to the definitive, published version or contact the author[s] for more information.
    Subject
    Condensed Matter Characterisation Technique Development
    Publication URI
    http://hdl.handle.net/10072/40562
    Collection
    • Journal articles

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