Preparation of Triboelectric Nanogenerators with CNT-Containing and Micro-structure PDMS Composite Films

Due to the complex and high-cost fabrication process of the dielectric layer surface microstructure of Triboelectric Nanogenerators, in this paper, a novel method is proposed to obtain the dielectric layer by applying microstructural carbon nanotubes（CNT）/polydimethylsiloxane（PDMS） elastomer membrane triboelectric nanogenerators. Carbon nanotubes are doped in polydimethylsiloxane to increase the dielectric constant, and the microstructure is rapidly formed on the surface of PDMS with sandpaper as template. The experiments are conducted to investigate the influence of the mesh of sandpaper template, CNT doping content, and the effect of load on the output performance of the triboelectric nanogenerators. In addition, we measure the output power and durability of the generator. The results demonstrate the following three aspects. First, the surface microstructure manufacturing method could increase the surface area of dielectric layer to improve the output of the generators. When the microstructure is generated