Infrared and Laser Engineering, Volume. 53, Issue 3, 20240006(2024)

Plasmon-enhanced ZnO-based nanowire heterojunction array photodetector

Hui Wu... Jialong Peng*, Jinbao Jiang, Hansheng Li, Wei Xu, Chucai Guo, Jianfa Zhang and Zhihong Zhu |Show fewer author(s)
Author Affiliations
  • College of Advanced Interdisciplinary Studies & Hunan Provincial Key Laboratory of Novel Nano Optoelectronic Information Materials and Devices, National University of Defense Technology, Changsha 410073, China
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    Figures & Tables(8)
    Schematic of preparation process of plasmon-enhanced ZnO/ZnSe heterojunction array photodetector
    Microstructure and phase characterization of 1-dimensional (1D) heterojunction nanowire arrays. (a) SEM image of the ZnO nanowires; (b) TEM images of the ZnO/ZnSe heterojunctions; (c) SEM image of the ZnO/ZnSe core-shell heterojunction nanowire arrays enhanced by Ag nanoparticles; (d) X-ray diffraction spectrum of the ZnO/ZnSe heterojunctions; (e) Raman spectra of the ZnO nanowire and ZnO/ZnSe heterojunction
    (a) The chopped I-V curve of 1D heterojunction nanowire array photodetector at −0.8 - 0.6 V bias voltage; (b) Schematic of energy band structure of ZnO/ZnSe heterojunction nanowire array photodetector enhanced by Ag nanoparticles
    (a) Photocurrent diagram of the photodetectors at 100 mW/cm2 visible light intensity(@0.8 V); (b) Photocurrent of ZnO/ZnSe heterojunction nanowire array photodetectors reinforced by Ag nanoparticles at different light intensities(@0.4 V)
    UV–vis absorption spectra of the photodetectors
    Nyquist plot of detectors
    (a) Bar graph of average rise time and delay time of photodetector; (b) Transient photocurrent curve of plasma-enhanced ZnO/ZnSe heterojunction nanowire array photodetector(@0.4 V)
    Photoelectric stability curve for photodetector (@0.2 V for 10 h)
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    Hui Wu, Jialong Peng, Jinbao Jiang, Hansheng Li, Wei Xu, Chucai Guo, Jianfa Zhang, Zhihong Zhu. Plasmon-enhanced ZnO-based nanowire heterojunction array photodetector[J]. Infrared and Laser Engineering, 2024, 53(3): 20240006

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    Paper Information

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    Received: Jan. 2, 2024

    Accepted: --

    Published Online: Jun. 21, 2024

    The Author Email: Peng Jialong (pengjialong@nudt.edu.cn)

    DOI:10.3788/IRLA20240006

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