“…It is common knowledge that piezoelectric fillers can improve the electroactive properties of PVDF-based composites more efficiently compared to non-piezoelectric fillers. Hence, fillers like PZT, 17 ZnO, 18 BaTiO 3 , 19 (KNa)NbO 3 , 20 CsPbBr 3 , 21 ZnSnO 3 , 22 etc . have been used most widely.…”