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

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作  者:Deshuang Guo Wei Li Dengkui Wang Bingheng Meng Dan Fang Zhipeng Wei 郭德双;李微;王登魁;孟兵恒;房丹;魏志鹏(State Key Laboratory of High Powder Semiconductor Lasers,Changchun University of Science and Technology,Changchun 130022,China)

机构地区:[1]State Key Laboratory of High Powder Semiconductor Lasers,Changchun University of Science and Technology,Changchun 130022,China

出  处:《Chinese Physics B》2020年第9期569-573,共5页中国物理B(英文版)

基  金:Project supported by the National Natural Science Foundation of China(Grant Nos.61704011,61674021,11674038,61574022,and 61904017);the Innovation Foundation of Changchun University of Science and Technology(Grant No.XQNJJ-2018-18).

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-Ⅱband 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.

关 键 词:electrochemical deposition Cu2O/ZnO self-powered photodetector RESPONSIVITY 

分 类 号:TN36[电子电信—物理电子学]

 

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