High performance Cu2O film/ZnO nanowires self-powered photodetector by electrochemical deposition*

被引：18
|
作者：
Guo, Deshuang [1 ]
Li, Wei [1 ]
Wang, Dengkui [1 ]
Meng, Bingheng [1 ]
Fang, Dan [1 ]
Wei, Zhipeng [1 ]
机构：
[1] Changchun Univ Sci & Technol, State Key Lab High Powder Semicond Lasers, Changchun 130022, Peoples R China
来源：
CHINESE PHYSICS B | 2020年 / 29卷 / 09期
基金：
中国国家自然科学基金;
关键词：
electrochemical deposition; Cu2O; ZnO; self-powered photodetector; responsivity; CORE-SHELL NANOWIRES; HIGH-EFFICIENCY; PHOTORESPONSE;
D O I：
10.1088/1674-1056/aba610
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Self-powered photodetectors based on nanomaterials have attracted lots of attention for several years due to their various advantages. In this paper, we report a high performance Cu2O/ZnO self-powered photodetector fabricated by using electrochemical deposition. ZnO nanowires arrays grown on indium-tin-oxide glass are immersed in Cu2O film to construct type-II band structure. The Cu2O/ZnO photodetector exhibits a responsivity of 0.288 mA/W at 596 nm without bias. Compared with Cu2O photoconductive detector, the responsivity of the Cu2O/ZnO self-powered photodetector is enhanced by about two times at 2 V bias. It is attributed to the high power conversion efficiency and the efficient separation of the photogenerated electron-hole pairs, which are provided by the heterojunction. The outstanding comprehensive performances make the Cu2O film/ZnO nanowires self-powered photodetector have great potential applications.
引用
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页数：5
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