Journal
SMALL
Volume 13, Issue 18, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201604033
Keywords
-
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Funding
- Program for Innovative Research Team in the University of Ministry of Education of China [IRT13R54]
- Fundamental Research Funds for the Central Universities [2016FZA4007, 2016XZZX001-05]
- NSFC [61674127, 61474099, 21325417, 51533008, 61431014]
- ZJ-NSF [LY16E020003, LZ17F040001]
- China State Key Project [2016YFA0200204]
- Micro-/Nanofabrication platform of the ZJU University
- ZJU Cyber Scholarship
- Cyrus Tang Center for Sensor Materials and Applications
- State Key Laboratory of Bioelectronics, Southeast University
- State Key Laboratory of Nano-devices and Applications at the Chinese Academy of Sciences [14ZS01]
- Churchill College at the University of Cambridge
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An effective colloidal process involving the hot-injection method is developed to synthesize uniform nanoflowers consisting of 2D gamma-In2Se3 nanosheets. By exploiting the narrow direct bandgap and high absorption coefficient in the visible light range of In2Se3, a high-quality gamma-In2Se3/Si heterojunction photodiode is fabricated. This photodiode shows a high photoresponse under light illumination, short response/ recovery times, and long-term durability. In addition, the gamma-In2Se3/Si heterojunction photodiode is self-powered and displays a broadband spectral response ranging from UV to IR with a high responsivity and detectivity. These excellent performances make the gamma-In2Se3/Si heterojunction very interesting as highly efficient photodetectors.
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