Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 50, Issue 37, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aa8059
Keywords
hybrid perovskite; MSM photodetector; solvent-induced crystallization
Categories
Funding
- NSF of China [51525202, 61574054, 51672076, 61505051]
- Aid Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
- Opened Fund of the State Key Laboratory on Integrated Optoelectronics, China [IOSKL2013KF13]
- Natural Science Foundation of Hunan Province, China [2016JJ2028]
- Foundation for Innovative Research Groups of NSFC [21521063]
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Organometal trihalide perovskites have emerged as a class of solution-processed semiconductors exhibiting remarkable optoelectronic properties. Using a high-quality perovskite thin film prepared by solvent-induced crystallization method and adopting a novel device configuration based on photon recycling effect, a perovskite thin-film photodetector has been constructed with the highest external quantum efficiency of 4.1 x 10(4)% and responsivity of 219 A W-1 at a low bias of 1 V so far. The device working mechanism was further disclosed based on energy band bending model. The high-performance and low working-voltage perovskite thin-film photodetector will find potential applications in photodetection and optoelectronic integrated circuits.
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