期刊
ACS APPLIED NANO MATERIALS
卷 4, 期 12, 页码 12932-12936出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.1c03100
关键词
multilayer InSe; photodetector; self-powered; mixed-dimensional heterojunctions; van der Waals heterojunctions
资金
- National Key Research and Development Program of China [2019YFA0705204]
- National Natural Science Foundation of China [51802038]
- Heilongjiang Natural Science Foundation [YQ2020E003]
High-performance self-powered broadband photo-detectors composed of mixed-dimensional (2D-3D) InSe-Si van der Waals heterojunctions demonstrate superior rectifying effect, wide photoresponse region, high responsivity, and good stability. These vdWHs exhibit better electrical and photoresponse performance compared to most other 2D InSe-based devices.
High-performance self-powered broadband photo-detectors composed of mixed-dimensional (2D-3D) InSe-Si van der Waals heterojunctions (vdWHs) are demonstrated for the first time. Because of the suitable band structures, high electron mobility, and good light absorption of the individual 2D InSe and 3D Si, the 2D-3D vdWHs exhibit an excellent rectifying effect, a broad photoresponse region, high responsivity, good stability, and good optical imaging capability. The electrical and photoresponse performance is superior to that of most other 2D InSe-based vdWHs. The good electrical and photoresponse performance of 2D-3D InSe-Si vdWHs demonstrates their broad applicability in high-performance optoelectronic devices.
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