Performance of dopamine modified 0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3 filler in PVDF nanocomposite as flexible energy storage and harvester

Abstract We demonstrate the potential of dopamine modified 0.5(Ba0.7Ca0.3)TiO3-0.5Ba(Zr0.2Ti0.8)O3 filler incorporated poly-vinylidene fluoride (PVDF) composite prepared by solution cast method as flexible energy storage and harvesting devices. Filler surface functionalization with dopamine acts as a bridging factor between the filler and the polymer matrix, resulting in better filler dispersion. The improved dielectric loss tangent (