Molybdenum Oxides: Wide-Spectral Photoresponse of Black Molybdenum Oxide Photodetector via Sub-Bandgap Electronic Transition (Advanced Optical Materials 10/2013)

Authors

  • Tsz-Wai Ng,

    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
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  • Qing-Dan Yang,

    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
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  • Hin-Wai Mo,

    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
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  • Ming-Fai Lo,

    Corresponding author
    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
    • Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR PR China

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  • Wen-Jun Zhang,

    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
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  • Chun-Sing Lee

    Corresponding author
    1. Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, PR China
    • Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR PR China

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Abstract

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On page 699, C.-S. Lee, M.-F. Lo, and co-workers report a black-colored MoO3 obtained by vacuum annealing of typical transparent MoO3. The black color is caused by splitting of the original wide bandgap into two regions of 1.8 and 1.0 eV widths. This enables IR absorption and the fabrication of a black MoO3-based photodetector with response across the full UV–visible–IR spectral range.

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