基于PDMS薄膜的高性能摩擦纳米发电机研究

Study on the high output performance of PDMS film based triboelectric nanogenerator

摩擦纳米发电机的出现为解决能源危机和环境问题提供了新的手段。通过制备不同石墨烯掺杂量的PDMS薄膜并进行试验,探讨了摩擦副材料、薄膜厚度、石墨烯掺杂量、载荷对石墨烯掺杂PDMS薄膜摩擦发电性能的影响,结果显示,石墨烯掺杂PDMS薄膜具有更高的电输出性能,最高短路电流为3.8μA,开路电压为129.2 V,相比纯PDMS薄膜分别增加了18倍和2倍,通过人工拍打实验获得305 W/m^(2)的输出功率密度。该研究为高介电常数PDMS薄膜的制备提供了一种新手段。

The application of new energy harvesting technologies to resolve the current energy crisis and environmental problems has attracted numerous attentions.The emergence of triboelectric nanogenerator provides a new strategy for solving this problem.Through the fabrication of graphene-doped polydimethylsiloxane(PDMS)films,the effects of tribopair material,film thickness,graphene doping content,and normal load on the triboelectrical output performances of graphene-doped PDMS films are systematically investigated.The results show that graphene-doped PDMS films have higher electrical output performance,with a maximum short-circuit current of 3.8μA increased by 18 times,and an open-circuit voltage of 129.2 V increased by 2 times.The maximum output power density of 305 W/m^(2) is achieved by using manual clapping experiment.This research provides a new method to prepare PDMS film with high dielectric constant,and thus demonstrates the potential of graphene-doped PDMS films in micro-nano energy applications.