Journal
NANO RESEARCH
Volume 10, Issue 7, Pages 2244-2256Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-016-1413-2
Keywords
ZnO; perovskite; hybrid; electrospinning; photodetector
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Funding
- National Natural Science Foundation of China [51422206, 51372159, 51502184]
- 1000 Youth Talents Plan
- 333 High-level Talents Cultivation Project of Jiangsu Province
- Six Talents Peak Project of Jiangsu Province
- Distinguished Young Scholars Foundation by Jiangsu Science and Technology Committee [BK20140009]
- Natural Science Foundation of Jiangsu Province [BK20150331]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Hybrid organic-inorganic perovskites have been demonstrated as promising candidates for broadband-responsive photodetectors. It is critical to develop perovskite-based photodetectors with excellent photodetection capability and facile fabrication processes for practical application. Herein, we designed and fabricated, for the first time, a hybrid photodetector consisting of electrospun ZnO nanofibers and perovskites. Compared to pristine ZnO or perovskite, the hybrid photodetector showed increased on-off ratio, faster response speed, and higher responsivity and detectivity. The performance of the hybrid devices was significantly enhanced by using quasi-aligned ZnO nanofiber arrays instead of disordered nanofibers, which provide efficient charge transfer between the perovskite and ZnO, shorter transmission paths, and reduced carrier loss at cross-junctions of nanofibers. Our results provide a new and promising route to integrate inorganic functional materials with perovskite for high-performance and low-cost photodetectors.
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