Influence of shape effect on dynamic surface charge transport mechanism of cellular electret after corona discharge  

作　　者：Jiawei ZHANG Zelei ZHANG T MATSUMOTO Qingqing GAO Yuanye LIU K NISHIJIMA Yifan LIU 张嘉伟;张泽磊;T MATSUMOTO;高青青;刘原野;K NISHIJIMA;刘亦凡(School of Electrical Engineering,Xi'an University of Technology,Xi'an 710048,People's Republic of China;Faculty of Engineering,Fukuoka University,Fukuoka 814-0180,Japan;Xi'an Jiaotong University,Xi'an 710049,People's Republic of China)

机构地区：[1]School of Electrical Engineering,Xi'an University of Technology,Xi'an 710048,People's Republic of China [2]Faculty of Engineering,Fukuoka University,Fukuoka 814-0180,Japan [3]Xi'an Jiaotong University,Xi'an 710049,People's Republic of China

出　　处：《Plasma Science and Technology》2022年第4期82-88,共7页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(NSFC)(Nos.52050410346,51877031,62061136009);the Ministry of Science and Technology(No.QNJ2021041001);the high-level talents plan of Shaanxi province;the‘Belt and Road Initiative’Overseas Expertise Introduction Center for Smart Energy and Reliability of Transmission and Distribution Equipment of Shaanxi Province;the Advanced Foreign Researcher Promotion Program of Ministry of Education,Culture,Sports,Science and Technology of Japan(MEXT);Fukuoka University。

摘　　要：Surface charge accumulation and transport on cellular polypropylene play an important role in nanogenerators,which could have a potential impact on energy harvesting and wearable devices for zero carbon energy systems and the internet of things.Different shapes have different charge accumulation and decay characteristics of the polymer.Therefore,we studied the influence of the sample’s shape on the surface charge decay by experiment and modeling.The surface potential of square and circular cellular polypropylene was measured by a two-dimensional surface potential measurement system with electrostatic capacitive probe.The experimental result shows that the surface potential distribution of the square sample dissipates non-uniformly from the bell shape to a one-sided collapsed shape,while that of the circular sample dissipates uniformly from the bell shape to the crater-like shape.Moreover,the simulated results of the initial surface potential distributions of the square and circular cellular polypropylene are consistent with the experimental results.The investigation demonstrates that the charge transport process is correlated with the shape of the sample,which provides significant reference for designing electret material used for highly efficient nanogenerators.

关 键 词：charge transport NANOGENERATOR corona discharge simulation shape effect cellular polypropylene sustainable energy 

分 类 号：TM31[电气工程—电机] TQ325.14[化学工程—合成树脂塑料工业]