Journal
ADVANCED FUNCTIONAL MATERIALS
Volume 29, Issue 24, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201901280
Keywords
flexible; perovskite nanowire arrays; photodetector; self-powered; semitransparent
Categories
Funding
- National Natural Science Foundation of China [51772197, 51422206, 51372159, 51872191]
- 333 High-level Talents Cultivation Project of Jiangsu Province
- 1000 Youth Talents Plan
- Key University Science Research Project of Jiangsu Province [17KJA430013]
- Six Talents Peak Project of Jiangsu Province
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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Transparent and flexible photodetectors hold great promise in next-generation portable and wearable optoelectronic devices. However, most of the previously reported devices need an external energy power source to drive its operation or require complex fabrication processes. Herein, designed is a semitransparent, flexible, and self-powered photodetector based on the integrated ferroelectric poly(vinylidene-fluoride-trifluoroethylene) (P(VDF-TrFE)) and perovskite nanowire arrays on the flexible polyethylene naphthalate substrate via a facile imprinting method. Through optimizing the treatment conditions, including polarization voltage, polarization time, and the concentration of P(VDF-TrFE), the resulting device exhibits remarkable detectivity (7.3 x 10(12) Jones), fast response time (88/154 mu s) at zero bias, as well as outstanding mechanical stability. The excellent performance is attributed to the efficient charge separation and transport originating from the highly oriented 1D transport pathway and the polarization-induced internal electric field within P(VDF-TrFE)/perovskite hybrid nanowire arrays.
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