Tailoring the Influence of 2D Carbon Nanofillers and PVDF Nanofiber Mat Thickness on Triboelectric Nanogenerators for Integration with ZnO Tribotronic Transistors

Triboelectric nanogenerators (TENG) have drawn much interest as a viable, sustainable power source for smart devices, and many techniques have been investigated to improve their output efficiency. In this study, TENG is constructed using 2D carbon‐filled polyvinylidene fluoride (PVDF) nanofibers through an electrospinning process. These 2D carbon nanofillers employed include graphite, graphene oxide (GO), reduced graphene oxide (rGO), and graphene nanoribbons (GNR). The impact of PVDF mat thickness is examined and optimized to get maximum TENG output. An electrospun nanofiber TENG (EN‐TENG) based on a PVDF‐GNR nanofiber mat achieves an output power density of 6.37 W m −2 , a peak short‐circuit current of 19.52 μA, a peak open‐circuit voltage of 83.32 V, and a charge transfer of 26.96 nC. Compared to pristine PVDF and other 2D carbon‐infused PVDF composites, the improved output performance is attributed to the higher dielectric constant of PVDF: GNR nanofibers. A digital stopwatch and LEDs are powered by the manufactured EN‐TENG, demonstrating the practicality of the application. To further highlight the potential of the EN‐TENG, a tribotronic transistor is fabricated by integrating it with a zinc oxide thin‐film transistor for touch sensor application.