TY - JOUR AU - Chen, Bao Dong AU - Tang, Wei AU - Zhang, Chi AU - Xu, Liang AU - Zhu, Lai Pan AU - Yang, Lei Jing AU - He, Chuan AU - Chen, Jian AU - Liu, Long AU - Zhou, Tao AU - Wang, Zhong Lin PY - 2018 TI - Au nanocomposite enhanced electret film for triboelectric nanogenerator JO - Nano Research SN - 1998-0124 SP - 3096 EP - 3105 VL - 11 IS - 6 AB - 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/m2 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. UR - https://doi.org/10.1007/s12274-017-1716-y DO - 10.1007/s12274-017-1716-y