Au nanocomposite enhanced electret film for triboelectric nanogenerator

作     者：Bao Dong Chen Wei Tang Chi Zhang Liang Xu Lai Pan Zhu Lei Jing Yang Chuan He Jian Chen Long Liu Tao Zhou Zhong Lin Wang 

作者机构：Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 China CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST) Beijing 100190 China School of Material Science and Engineering Georgia Institute of Technology Atlanta Georgia 30332 USA 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2018年第11卷第6期

页      面：3096-3105页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 082304[工学-载运工具运用工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0823[工学-交通运输工程] 

基　　金：National Key R&D Project from Minister of Science and Technology, (2016YFA0202704) National Natural Science Foundation of China, NSFC, (51432005, 5151101243, 51561145021, 61405131) National Natural Science Foundation of China, NSFC Beijing Municipal Science and Technology Commission, BMSTC, (Y3993113DF) Beijing Municipal Science and Technology Commission, BMSTC 

主　　题：equivalent nanocapacitor structure polytetrafluoroethylene(PTFE) electret thin film gold nanoparticles equivalent surface charge density 

摘      要：A triboelectric nanogenerator （TENG） with an organic nanocomposite electret thin film as the triboelectric layer for mechanical energy harvesting was investigated systematically. In combination with corona charging, a TENG was fabricated by using embedded-nanocapacitor-structure polytetrafluoroethylene （PTFE） impregnated with gold nanoparticles （Au-NPs）. The output performances, stability, and durability of the TENGs with Au-PTFE nanocomposite films were characterized after being washed in water. It was found that the output current increases by 70% and the equivalent surface charge density （ESCD） reaches 85 μC/m^2 in comparison to the virgin PTFE film. Such outstanding performance is likely due to the equivalent nanocapacitors between the Au-NPs and PTFE molecules, which serve as nano charge traps in the nanocomposite electret film under negative high-voltage corona charging. This work not only expands the practical applications of TENGs, but also opens up new possibilities for the development of high performance triboelectric materials.