Photolithographically Constructed Single ZnO Nanowire Device and Its Ultraviolet Photoresponse

Quanli LIU; Takao YASUI; Kazuki NAGASHIMA; Takeshi YANAGIDA; Masafumi HORIUCHI; Zetao ZHU; Hiromi TAKAHASHI; Taisuke SHIMADA; Akihide ARIMA; Yoshinobu BABA

doi:10.2116/analsci.20N002

Notes

Photolithographically Constructed Single ZnO Nanowire Device and Its Ultraviolet Photoresponse

Quanli LIU, Takao YASUI, Kazuki NAGASHIMA, Takeshi YANAGIDA, Masafumi HORIUCHI, Zetao ZHU, Hiromi TAKAHASHI, Taisuke SHIMADA, Akihide ARIMA, Yoshinobu BABA

Author information

Quanli LIU
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Takao YASUI
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
Kazuki NAGASHIMA
Japan Science and Technology Agency (JST), PRESTO
Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo
Takeshi YANAGIDA
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
Masafumi HORIUCHI
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Zetao ZHU
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Hiromi TAKAHASHI
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Taisuke SHIMADA
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Akihide ARIMA
Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University
Yoshinobu BABA
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

Keywords: ZnO nanowire, single nanowire device, photolithography, ultraviolet photodetector

JOURNAL FREE ACCESS

2020 Volume 36 Issue 9 Pages 1125-1129

DOI https://doi.org/10.2116/analsci.20N002

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Abstract

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 I_UV/I_dark of ∼100 to ultraviolet light irradiation.

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