The effect of CoFe2O4, CuFe2O4 and Cu/CoFe2O4 nanoparticles on the optical properties and piezoelectric response of the PVDF polymer

Cobalt ferrite, Copper ferrite and cobalt doped copper nanoparticles have been synthesized characterized using different characterization methods (XRD, FTIR FESEM). The prepared used as promising fillers of the polyvinylidene fluoride (PVDF) polymer. PVDF/(Cu–CoFe2O4, CoFe2O4, CuFe2O4) nanocomposites films via a simple solution casting technique. optical properties piezoelectric response nanocomposite studied. This study showed that Cu–CoFe2O4 enhanced interfacial polarization density dielectric constant. nanofillers reduced PVDF band gap energy value. conductivity value PVDF/(Cu–CoFe2O4 CoFe2O4) increased five times compared with pure PVDF. Also, an increase in has recorded by adding nano-fillers to