Photolithographically Constructed Single ZnO Nanowire Device and Its Ultraviolet Photoresponse

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  • LIU Quanli
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • YASUI Takao
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University Japan Science and Technology Agency (JST), PRESTO Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University
  • NAGASHIMA Kazuki
    Japan Science and Technology Agency (JST), PRESTO Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
  • YANAGIDA Takeshi
    Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo Institute of Scientific and Industrial Research, Osaka University Institute of Materials Chemistry and Engineering, Kyushu University
  • HORIUCHI Masafumi
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • ZHU Zetao
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • TAKAHASHI Hiromi
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • SHIMADA Taisuke
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • ARIMA Akihide
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
  • BABA Yoshinobu
    Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University Institute of Nano-Life-Systems, Institutes of Innovation for Future Society, Nagoya University Institute of Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology

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Description

<p>A sparse ZnO nanowire array with aspect ratio of ca. 120 and growth rate of 1 μm/h was synthesized by controlling the density of seeds at the initial stage of nanowire growth. The spatially-separated nanowires were cut off from the growth substrate without breaking, and thus were useful in the construction of a single-nanowire device by photolithography. The device exhibited a linear current–voltage characteristic associated with ohmic contact between ZnO nanowire and electrodes. The device further demonstrated a reliable photoresponse with an IUV/Idark of ∼100 to ultraviolet light irradiation.</p>

Journal

  • Analytical Sciences

    Analytical Sciences 36 (9), 1125-1129, 2020-09-10

    The Japan Society for Analytical Chemistry

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