abstract
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In this study, a piezoelectric harvesting device was developed using polyvinylidene fluoride (PVDF) nanofibers reinforced with either BaTiO
3 nanoparticles or graphene powder. BaTiO3 nanoparticles were synthesized through the sol-gel method with an average size of approximately 32 nm. The PVDF nanofibers, along with the nanoparticle composites in an acetone-N,N-dimethylformamide mixture, were produced using a centrifugal Forcespinning¿ machine, resulting in a heterogeneous arrangement of fiber meshes, with an average diameter of 1.6 ¿m. Experimental tests revealed that the electrical performance of the fabricated harvester reached a maximum value of 35.8 Voc, demonstrating the potential of BaTiO3 / PVDF-based piezoelectric devices for designing wearable applications such as body-sensing and energy-harvesting devices. © 2023 by the authors.