CsPbI_(3)/PVDF复合纤维基压电纳米发电机的构筑  

Construction of piezoelectric nanogenerator with inorganic perovskite nanocomposite fiber CsPbI_(3)/PVDF

作　　者：陈慧颖 刘成 杨涛[1] 侯新梅[1] CHEN Huiying;LIU Cheng;YANG Tao;HOU Xinmei(Collaborative Innovation Center of Steel Technology,University of Science and Technology Beijing,Beijing 100083,China;Technical Center of Maanshan Iron&Steel Co.,Ltd.,Maanshan 243003,China)

机构地区：[1]北京科技大学钢铁共性协同创新中心,北京100083 [2]马鞍山钢铁股份有限公司技术中心,安徽马鞍山243003

出　　处：《辽宁科技大学学报》2021年第1期43-49,共7页Journal of University of Science and Technology Liaoning

基　　金：国家自然科学基金(52025041、51974021、51902020);中央高校基本业务科研经费(FRF-TP-18-045A1、FRF-TP-19-004B2Z)。

摘　　要：无机铯铅卤素钙钛矿具有出色的光学和电子性能,已发展成为现代光电子纳米器件的新兴材料。本文配置溶有铯铅碘钙钛矿(CsPbI3)与聚偏氟乙烯(Polyvinylidene difluoride,PVDF)的前驱体溶液,采用静电纺丝方法,原位合成CsPbI3/PVDF复合纤维。该纤维表面光滑,直径约为100 nm,内部均匀分布着平均直径约为20 nm的CsPbI3纳米晶粒。采用CsPbI3/PVDF复合纤维构筑的压电纳米发电机的开路电压(Voc)为9.18 V,短路电流密度为97.72 nA/cm2,输出电流Isc居于中等水平。研究表明,CsPbI3/PVDF复合纤维是构筑压电纳米发电机的可选材料,在机械能量收集和运动传感技术中具有广阔的应用前景。The inorganic cesium lead halide perovskite has become an emerging material for modern photoelectron nano-devices due to its excellent optical and electronic properties.In this work,the CsPbI3/PVDF composite fiber is synthesized with the in-situ growth method via electrospinning.The electrospun fiber is about 100 nm in diameter with smooth surface.Meanwhile,CsPbI3 nanocrystals(NCs)with a mean diameter of about 20 nm are distributed inside the fiber matrix evenly.The open circuit voltage(Voc)of the CsPbI3/PVDF composite fiber based piezoelectric nanogenerator(PENG)is 9.18 V,and the short circuit current density(the density of Isc)is 97.72 nA/cm2.This work demonstrates that CsPbI3/PVDF composite fiber is an optional alternative material for constructing piezoelectric nanogenerator and has broad application capability in mechanical energy collection and motion sensing technology.

关 键 词：无机钙钛矿CsPbI_(3) PVDF 复合材料 压电纳米发电机 

分 类 号：TM619[电气工程—电力系统及自动化]