A Model of Dual Fabry-Perot Etalon-Based External-Cavity Tunable Laser Us...
Internal motion within pulsating pure-quartic soliton molecules in a fibe...
Enhanced light emission of germanium light-emitting-diode on 150 mm germa...
The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Ap...
Negative-to-Positive Tunnel Magnetoresistance in van der Waals Fe3GeTe2/C...
Quantum Light Source Based on Semiconductor Quantum Dots: A Review
A High-Reliability RF MEMS Metal-Contact Switch Based on Al-Sc Alloy
Development of a Mode-Locked Fiber Laser Utilizing a Niobium Diselenide S...
Development of Multiple Fano-Resonance-Based All-Dielectric Metastructure...
Traffic Vibration Signal Analysis of DAS Fiber Optic Cables with Differen...
官方微信
友情链接

Flexophotovoltaic Effect in Potassium Sodium Niobate/Poly(Vinylidene Fluoride-Trifluoroethylene) Nanocomposite

2021-03-11

 

Author(s): Wang, CC (Wang, Chenchen); Zhang, Y (Zhang, Yang); Zhang, BW (Zhang, Bowen); Wang, B (Wang, Bo); Zhang, JX (Zhang, Jinxi); Chen, LQ (Chen, Long-Qing); Zhang, QM (Zhang, Qiming); Wang, ZL (Wang, Zhong Lin); Ren, KL (Ren, Kailiang)

Source: ADVANCED SCIENCE Article Number: 2004554 DOI: 10.1002/advs.202004554 Early Access Date: FEB 2021

Abstract: Flexoelectricity is an electromechanical coupling effect in which electric polarization is generated by a strain gradient. In this investigation, a potassium sodium niobite/poly(vinylidene fluoride-trifluoroethylene) (KNN/PVDF-TrFE)-based nanocomposite is fabricated, and the flexoelectric effect is used to enhance the photovoltaic current (I-pv) in the nanocomposite. It is found that both a pyroelectric current and photovoltaic current can be generated simultaneously in a light illumination process. However, the photovoltaic current (I-pv) in this process contributes approximate to 85% of the total current. When assessing the effect of flexoelectricity with a curvature of 1/20, the I-pv of the curved KNN/PVDF-TrFE (20%) (K/P-20) composite increased by approximate to 13.9% compared to that of the flat K/P-20 nanocomposite. Similarly, at a curvature of 1/20, the I-pv of the K/P-20 nanocomposite is 71.6% higher than that of the PVDF-TrFE film. However, the photovoltaic effect induced by flexoelectricity is much higher than the increased polarization from flexoelectricity, so this effect is called as the flexophotovoltaic effect. Furthermore, the calculated energy conversion efficiency of the K/P-20 film is 0.017%, which is comparable to the previous research result. This investigation shows great promise for PVDF-based nanocomposites in ferroelectric memory device applications.

Accession Number: WOS:000615811600001

eISSN: 2198-3844

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/advs.202004554



关于我们
下载视频观看
联系方式
通信地址

北京市海淀区清华东路甲35号(林大北路中段) 北京912信箱 (100083)

电话

010-82304210/010-82305052(传真)

E-mail

semi@semi.ac.cn

交通地图
版权所有 中国科学院半导体研究所

备案号:京ICP备05085259-1号 京公网安备110402500052 中国科学院半导体所声明