Electrochemical Synthesis of CdSe Quantum-Dot Arrays on a Graphene Basal Plane Using Mesoporous Silica Thin-Film Templates

Authors

  • Yong-Tae Kim,

    1. Department of Chemistry, BK-21 School of Chemical Materials Science Sungkyunkwan University Suwon, 440-476 (Korea)
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  • Jung Hee Han,

    1. SKKU Advanced Institute of Nanotechnology Sungkyunkwan University Suwon, 440-476 (Korea)
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  • Byung Hee Hong,

    Corresponding author
    1. Department of Chemistry, BK-21 School of Chemical Materials Science SKKU Advanced Institute of Nanotechnology Sungkyunkwan University, Suwon, 440-476 (Korea)
    • Department of Chemistry, BK-21 School of Chemical Materials Science SKKU Advanced Institute of Nanotechnology Sungkyunkwan University, Suwon, 440-476 (Korea).
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  • Young-Uk Kwon

    Corresponding author
    1. Department of Chemistry, BK-21 School of Chemical Materials Science SKKU Advanced Institute of Nanotechnology Sungkyunkwan University, Suwon, 440-476 (Korea)
    • Department of Chemistry, BK-21 School of Chemical Materials Science SKKU Advanced Institute of Nanotechnology Sungkyunkwan University, Suwon, 440-476 (Korea).
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Abstract

original image

A mesoporous silica film acts as a template and a potential equalizer between the edge/defect sites and the basal plane of a graphene sheet. Using an electrochemical deposition method of CdSe on these graphene sheets covered with a silica film results in CdSe quantum dots that are evenly distributed in regular hexagonal arrays (see figure).

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