Piezoelectric response of graphene-filled PVDF nanocoposites through piezoresponse force microscopy (PFM)
The piezoelectric properties of Poly(vinylidene fluoride) (PVDF) mainly depend on its most polar ?-phase. In this work, we investigated through Piezoresponse Force Microscopy (PFM) the piezoelectric properties of PVDF composite films when we induce the formation of ?-phase crystals adding graphene nanoplatelets (GNPs) without any chemical modification or poling. At first, we fabricated GNP-filled PVDF composite films by the solution casting method.