The preparation of γ-poly(vinylidene fluoride)/ZnS nanocomposite for energy storage application

Organic-inorganic nanocomposite film composed of poly(vinylidene fluoride) (PVDF) and zinc sulphide nanoparticles (ZnS-NPs) has been prepared. It is observed that composite film can stabilize the γ-phase. The PVDF-ZnS composite film exhibits superior dielectric property (ɛr∼14 at 1 kHz) than those of pure PVDF. Enhanced saturated polarization (Psat ∼0.38 µC cm-2) and remnant polarization values (Pr∼ 0.21 µC cm-2) are obtained in nanocomposite film that indicates to have potential to use as energy storage applications. In addition, ZnS-NPs incorporation also improves dielectric breakdown strength.