Study of ZnO Ultraviolet Detector

YANG Lei; WANG Zhusheng; LI ZhankuiLIU Fengqiong; WANG Xiuhua; CHEN Cuihong; LI Haixia; LI Ronghua; RONG Xinjuan; ZU Kailin; LI Chunyan; LU Ziwei

doi:10.11804/NuclPhysRev.32.01.069

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Article Navigation > Nuclear Physics Review > 2015 > 32(1): 69-72

YANG Lei, WANG Zhusheng, LI ZhankuiLIU Fengqiong, WANG Xiuhua, CHEN Cuihong, LI Haixia, LI Ronghua, RONG Xinjuan, ZU Kailin, LI Chunyan, LU Ziwei, . Study of ZnO Ultraviolet Detector[J]. Nuclear Physics Review, 2015, 32(1): 69-72. doi: 10.11804/NuclPhysRev.32.01.069

Citation:

YANG Lei, WANG Zhusheng, LI ZhankuiLIU Fengqiong, WANG Xiuhua, CHEN Cuihong, LI Haixia, LI Ronghua, RONG Xinjuan, ZU Kailin, LI Chunyan, LU Ziwei, . Study of ZnO Ultraviolet Detector[J]. Nuclear Physics Review, 2015, 32(1): 69-72. doi: 10.11804/NuclPhysRev.32.01.069

Study of ZnO Ultraviolet Detector

doi: 10.11804/NuclPhysRev.32.01.069

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-03-20

Abstract

ZnO ultraviolet(UV) detectors with Metal-Semiconductor-Metal(MSM) structure were fabricated by the vacuum evaporation of Au, Ag, and Al on the n-type ZnO single crystal, which was grown with hydrothermal synthesis method. Five types of MSM ZnO detectors(Au-ZnO-Au, Ag-ZnO-Ag, Au-ZnO-Al, Ag-ZnO-Al,l-ZnO-Al) were illuminated with 365 nm UV light respectively, and their corresponding I-V(Current-Voltage) characteristics were measured. The UV photocurrent values for Au-ZnO-Au and Ag-ZnO-Ag detectors were 1x10⁶times than their dark current values, and these facts imply that the Au-ZnO-Au and Ag-ZnO-Ag detectors were rather good UV detectors compared to Au-ZnO-Al, Ag-ZnO-Al, Al-ZnO-Al detectors. The photocurrent of the MSM ZnO detectors was also sensitive to the cubic resistance of the ZnO crystal. And it’s found that the higher resistance rate the ZnO crystal the smaller photocurrent value the detector under the same working voltage.
- ZnO,
- UV detector,
- Metal-Semiconductor-Metal
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Study of ZnO Ultraviolet Detector

doi: 10.11804/NuclPhysRev.32.01.069

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-03-20

Key words:

Abstract: ZnO ultraviolet(UV) detectors with Metal-Semiconductor-Metal(MSM) structure were fabricated by the vacuum evaporation of Au, Ag, and Al on the n-type ZnO single crystal, which was grown with hydrothermal synthesis method. Five types of MSM ZnO detectors(Au-ZnO-Au, Ag-ZnO-Ag, Au-ZnO-Al, Ag-ZnO-Al,l-ZnO-Al) were illuminated with 365 nm UV light respectively, and their corresponding I-V(Current-Voltage) characteristics were measured. The UV photocurrent values for Au-ZnO-Au and Ag-ZnO-Ag detectors were 1x10⁶times than their dark current values, and these facts imply that the Au-ZnO-Au and Ag-ZnO-Ag detectors were rather good UV detectors compared to Au-ZnO-Al, Ag-ZnO-Al, Al-ZnO-Al detectors. The photocurrent of the MSM ZnO detectors was also sensitive to the cubic resistance of the ZnO crystal. And it’s found that the higher resistance rate the ZnO crystal the smaller photocurrent value the detector under the same working voltage.

Citation:

YANG Lei, WANG Zhusheng, LI ZhankuiLIU Fengqiong, WANG Xiuhua, CHEN Cuihong, LI Haixia, LI Ronghua, RONG Xinjuan, ZU Kailin, LI Chunyan, LU Ziwei, . Study of ZnO Ultraviolet Detector[J]. Nuclear Physics Review, 2015, 32(1): 69-72. doi: 10.11804/NuclPhysRev.32.01.069