Flexible self-powered CsPbI3/rGO/P(VDF-TrFE) pressure sensor and photodetector based on piezo-phototronic effect with long-Term stability

被引：8
作者：
Zhu, Changhong [1 ]
Peng, Zhongquan [2 ,3 ]
Guo, Zhenjun [1 ]
Peng, Lin [4 ]
Zhao, Chunmei [2 ]
机构：
[1] Guilin Univ Aerosp Technol, Sch Comp Sci & Engn, Guilin 541004, Peoples R China
[2] Jiangxi Univ Appl Sci, Sch Artificial Intelligence, Nanchang 330100, Peoples R China
[3] Hangzhou Dianzi Univ, Coll Elect & Informat, Hangzhou 310018, Peoples R China
[4] Jiangxi Coll Applied Technol, Ganzhou 341000, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2022年 / 646卷
关键词：
Pressure sensor; Self-powered; Piezo-phototronic effect; Perovskite; PEROVSKITE SOLAR-CELLS; PIEZOELECTRIC NANOGENERATORS; ENERGY HARVESTER; PERFORMANCE; COMPOSITE; FILMS;
D O I：
10.1016/j.physb.2022.414264
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
CsPbI3, graphene and poly(vinylidene fluoride-trifluoroethylene) P(VDF-TrFE) solution are mixed in one step to produce a film, the CsPbI(3 )and rGO are uniformly distributed in the P(VDF-TrFE) film to synthesize an extremely uniform size and spatially distributed mesh composite film. The open circuit voltage of the piezoelectric nano pressure sensor based on CsPbI3/rGO/P(VDF-TrFE) composite film is 12.5V, and the circuit current density is 425 nA. In addition, the piezoelectric sensor prepared by CsPbI3/rGO/P(VDF-TrFE) composite film has radically enhanced water/thermal/acid-base stability. Finally, the piezo-phototronic effect is realized by manufacturing self-powered sensors in CsPbI3/rGO/P(VDF-TrFE) composites, which has a significant enhancement of 3.26 times. The CsPbI3/rGO/P(VDF-TrFE) is an ideal material for preparing high-performance piezoelectric sensors and photodetectors. It has broad application prospects in mechanical energy acquisition and motion sensing technology.
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页数：8
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