PVDF/N-rGO nanofibers based sustainable triboelectric nanogenerator for self-powered wireless motion sensor

The wireless sensor networks, a critical component of Internet of Things (IoT) play a pivotal role in smart era where numerous microelectronic devices, sensors are connected wirelessly to one another. However, the need for massive distributed energy for perpetual operation of sensors and wireless transmission modules has become a major issue. Therefore, to address these issues, we have designed a self-powered motion sensor using PVDF and nitrogen doped rGO (N-rGO) nanocomposite film. The fabricated triboelectric nanogenerator (TENG) enables real-time control in human machine interface by wirelessly transmitting sensing data obtained from real time human motion detection for smart home. By employing nanofillers and electrospinning techniques, a significant enhancement in electrical performance of PVDF based TENG is achieved. PVDF/N-rGO(1.5 wt%) nanofiberbased TENG exhibits superior performance compared to conventional PVDF film based TENGs prepared using drop casting techniques, delivering maximum output voltage, current, and power density of 368 V, 35 mu A and 282.8 mu W/cm2 respectively. Furthermore, real-time application of TENG is illustrated by powering electronic devices and harnessing mechanical energy from human movements. These findings provide valuable insights into the development of self-powered human-machine interface for managing wireless sensing system.