High-performance triboelectric nanogenerator using ZIF-67/PVDF hybrid film for energy harvesting

Abstract

This research work presents the development of a triboelectric nanogenerator (TENG) devices utilizing a ZIF-67/PVDF hybrid film and FEP as frictional layers. The ZIF-67/PVDF film was prepared using a solution casting method and exhibited high crystallinity as confirmed by XRD. The average particle size of ZIF-67 powder was found ~ 250 nm. Morphological studies by SEM confirms the incorporation of ZIF-67 in PVDF film. Notably, the incorporation of ZIF-67 particles resulted in an enhanced β-phase content in the PVDF compared to pure PVDF. The ZIF-67/PVDF-based TENG exhibited improved electrical performance, this can be attributed to the increased β-phase content in the hybrid film. The TENG device demonstrated remarkable characteristics, including a power density of 3.1 W/m2, an open circuit voltage of 395 V, and a current of 95 µA. The fabricated TENG device was successfully utilized as a power source for low-power devices, highlighting its potential for self-powered applications.