Self-Powered Photodetectors Based on 2D Materials

被引:384
作者
Qiao, Hui [1 ,2 ]
Huang, Zongyu [1 ,2 ]
Ren, Xiaohui [1 ,2 ]
Liu, Shuhua [1 ,2 ]
Zhang, Yupeng [3 ]
Qi, Xiang [1 ,2 ]
Zhang, Han [3 ]
机构
[1] Xiangtan Univ, Hunan Key Lab Micronano Energy Mat & Devices, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China
[3] Shenzhen Univ, Collaborat Innovat Ctr Optoelect Sci & Technol, Shenzhen 518060, Peoples R China
关键词
2D materials; photodetectors; self-powered devices; P-N-JUNCTION; BLACK PHOSPHORUS NANOSHEETS; FIELD-EFFECT TRANSISTORS; HIGH-PERFORMANCE; BROAD-BAND; SCHOTTKY-JUNCTION; LAYER MOS2; SATURABLE ABSORBER; EPITAXIAL-GROWTH; SINGLE-LAYER;
D O I
10.1002/adom.201900765
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Self-powered photodetectors are considered as a new type of photodetectors enabling self-powered photodetection without external power. The excellent photoresponsivity, fast photoresponse rate, low dark current, and large light on/off ratio of these photodetectors have attracted wide interest among scholars. 2D materials are widely used in self-powered photodetectors due to their excellent optical and electrical properties, unique 2D structures, and their capabilities to exhibit excellent photodetection performance. According to the self-driving mechanism of 2D material-based self-powered photodetectors, they are divided into three categories: p-n junction photodetectors, Schottky junction photodetectors, and photoelectrochemical photodetectors. From these three perspectives, the research progress of 2D material-based self-powered photodetectors is summarized in detail here. Research reports indicate that 2D material-based self-powered photodetectors have excellent self-powered photoresponse behavior, good light on/off characteristics, and wideband spectral response ranges. The excellent photoresponse performance of 2D material-based self-powered photodetectors facilitates their potential applications in the field of optoelectronic devices. In particular, self-powered photodetectors have great potential as novel emerging self-driven optoelectronic devices. Finally, directions for the further development of 2D material-based self-powered photodetectors are anticipated.
引用
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页数:20
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