Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 53, Issue 41, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/ab94e5
Keywords
CH3NH3PbBr3; CH3NH3PbI3; single crystals; planar; photodetectors
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Funding
- National Natural Science Foundation of China [11574075]
- Hubei Provincial Department of Science Technology [2016CFA036]
- Hubei Provincial Department of Education [D20161002]
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Single crystals of methylammonium lead trihalide perovskites have been widely applied in the research of next-generation photodetectors due to their remarkable light-harvesting properties, low trap density, and good carrier transport ability. Herein, the presented work demonstrates the high-quality and millimeter-scale single crystals CH(3)NH(3)PbBr(3)and CH(3)NH(3)PbI(3)perovskite-based planar photodetectors modified by the inverse temperature crystallization technique. The highest photoresponsivity of CH(3)NH(3)PbBr(3)photodetector can reach similar to 111 A W(-1)under the visible illumination of 520 nm light and the highest photoresponsivity of CH(3)NH(3)PbI(3)photodetector can reach similar to 568 A W(-1)under the infrared illumination of 895 nm light. The photodetectors also demonstrate high on/off ratio and fast response speed. It implies that CH(3)NH(3)PbBr(3)and CH(3)NH(3)PbI(3)single crystals based photodetectors reveal great attention for the applications of visible-infrared photodetection.
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