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Advanced Materials

Position- and Morphology-Controlled ZnO Nanostructures Grown on Graphene Layers

Authors

  • Yong-Jin Kim,

    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
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  • Hyobin Yoo,

    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
    2. Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
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  • Chul-Ho Lee,

    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
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  • Jun Beom Park,

    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
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  • Hyeonjun Baek,

    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
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  • Miyoung Kim,

    1. Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Korea
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  • Gyu-Chul Yi

    Corresponding author
    1. National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea
    • National Creative Research Initiative, Center for Semiconductor Nanorods, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea.
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Abstract

Position- and morphology-controlled ZnO nanostructures are grown on an oxygen plasma-treated selective area of graphene layers using metal-organic vapor-phase epitaxy. The structural and optical characteristics examined by electron microscopy, cathodoluminescence and photoluminescence techniques indicate that high-quality nanostructures are prepared on graphene layers. This approach to grow the controlled ZnO nanostructures selectively on graphene layers enables us to fabricate various nanodevices including GaN/ZnO coaxial nanotube LED microarrays.

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