So far, piezoelectric Polyvinylidene fluoride (PVDF) nanofiber materials have promising candidates in textile industries, health care systems, tissue engineering, drug delivery, pollution control, energy harvesting, and sensing applications.
PVDF Co-polymers are Polyvinylidene Fluoride-Trifluoro Ethylene (PVDF-TrFE), Polyvinylidene Fluoride-Chlorotrifluoroethylene P (VDF-CTFE), and Polyvinylidene Fluoride-Hexafluoropropylene P (VDF-HFP).
Thus, the PVDF/DMAc-rGO mat is suitable for fabricating a piezoelectric energy harvester to convert mechanical energy into useful electrical energy . We have selected PVDF/DMAc as a reference material to compare the energy harvesting performance of the PVDF/DMAc-rGO device.
Additionally, recently reported PVDF based hybrid piezoelectric nanogenerators that combine triboelectric and pyroelectric mechanism and serve as high-performance self-powered sophisticated energy harvesting systems have also been reviewed.
PVDF combines high piezoelectric, pyroelectric, and ferroelectric properties with high mechanical strength, high thermal stability, and biocompatibility. (7,8) With its unique properties, PVDF has found use in a broad spectrum of applications ranging from biomedical to energy-harvesting systems.
Therefore, by comparing different strategies to control the piezoelectric properties of PVDF electrospun fiber, we found that the best method is to use DMAc as the solvent and conductive filler (rGO) for energy harvesting applications. The finger-tapping test was conducted to show the straightforward practical application of the PVDF/DMA-rGO mat.