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ZnO nanowires based MSM ultraviolet photodetectors with Pt contact electrodes
YAN Xiaoqin * #
School of Materials Science and Engineering, University of Science and Technology Beijing,Beijing 100083
*Correspondence author
#Submitted by
Subject:
Funding: the Beijing novel program （No.2008B19）, the Program for New Century Excellent Talents in University （No.NCET-09-0219）, Specialized Research Fund for the Doctoral Program of Higher Education（No.20090006120008）
Opened online:11 March 2013
Accepted by: none
Citation: YAN Xiaoqin.ZnO nanowires based MSM ultraviolet photodetectors with Pt contact electrodes[OL]. [11 March 2013] http://en.paper.edu.cn/en_releasepaper/content/4526353
 
 
ZnO nanowires Metal-Semiconductor-Metal (MSM) photodetector with platinum (Pt) contact electrodes was fabricated and its optoelectronic properties were examined. The ZnO nanowires used in the experiment were synthesized by chemical vapor deposition method. The electrical performance and photoelectric response performance were studied, and the results showed that the Pt/ZnO nanowires based MSM ultraviolet photodetector exhibited a high sensitivity to 365 nm ultraviolet light, the photocurrent to dark current ratio can reach 9.44×103 with a voltage bias of 5 V, and the response and recovery time were also fast. Schottky barrier mechanism was employed to explain the results.
Keywords:ZnO nanowires; ultraviolet photodetector; schottky contact
 
 
 

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