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Tian C, Wang F, Wang Y, Yang Z, Chen X, Mei J, Liu H, Zhao D. Chemical Vapor Deposition Method Grown All-Inorganic Perovskite Microcrystals for Self-Powered Photodetectors. ACS Appl Mater Interfaces 2019; 11:15804-15812. [PMID: 30964633 DOI: 10.1021/acsami.9b03551] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Self-powered photodetectors (SPPDs) have attracted lots of attention due to their various advantages including no external power sources, high-sensitivity, fast response speed, and so on. This study reports the fabrication and characterization results of CsPbBr3 microcrystals (MCs) grown by chemical vapor deposition (CVD) method, and the SPPDs have been fabricated on the basis of the CsPbBr3 MCs layer with the sandwich structure of GaN/CsPbBr3 MCs/ZnO. Such designed SPPD shows the detectivity ( D*) of 1014 Jones, on/off ratio of up to 105, peak responsivity ( R) of 89.5 mA/W, and enhanced stability at the incident wavelength of 540 nm. The photodetector enables the fast photoresponse speed of 100 μs rise time and 140 μs decay time. The performances of the SPPD are comparable to the best ones ever reported for CsPbBr3 based PDs but do not need external power supplies, which mainly benefit from the low trap density, long carrier diffusion of high quality CsPbBr3MCs film, and the built-in electric fields in the sandwich structure of GaN/CsPbBr3/ZnO layers.
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Affiliation(s)
- Cancan Tian
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Fei Wang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
| | - Yunpeng Wang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
| | - Zhe Yang
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Xuejiao Chen
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Jingjing Mei
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Hongzhen Liu
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Dongxu Zhao
- State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics , Chinese Academy of Sciences , 3888 Dongnanhu Road , Changchun 130021 , People's Republic of China
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