All-electrospun performance-enhanced triboelectric nanogenerator based on the charge-storage process

The output performance of the triboelectric nanogenerator (TENG) greatly depends on the surface charge density. However, the surface charge dissipation and the electron transfer would result in a sharp decrease in the output performance. In this work, we proposed a functional multilayer negative structure of TENG, using polystyrene interface material to provide high electron trapping holes and conductive carbon black doped polystyrene to accelerate charge transfer rate to improve the charge density further. It was indicated that the open-circuit voltage generated by the TENG with the polystyrene layer was 460% of that of the PVDF single-layer structure and was 694% enhanced by introducing conductive carbon black in the multilayer performance-enhanced TENG (PE-TENG). The peak output power was up to 52.3 μW in a contact area of 3 × 3 cm 2 . In short, it proves an effective way to improve the output performance of flexible triboelectric nanogenerators with comprehensive applications in wearable energy sources and human health monitoring sensors.