Abstract
The effect of reduced graphene oxide (RGO) on the dielectric and ferroelectric properties of poly(vinylidene fluoride)-barium titanate (PVDF-BTO) nanocomposites have been investigated. To obtain the insulator-conductor insulator structure, the GO was first added into the PVDF matrix and then BTO was slowly inserted to the composite. The as-prepared optimum nanocomposite (PRB2) sample showed high dielectric constant (98 @ 1MHz) and relatively low loss (0.081 @ 1MHz). Furthermore, the nanocomposite exhibit energy density of 4.5 J/cm(3) at an electric field of 50 MV/m, which was calculated through the P-E loop. The as-synthesized piezoelectric-ferroelectric material can be a promising building block for its application in energy harvesting. (C) 2016 The Authors. Published by Elsevier Ltd.