Enhanced output performance of a flexible piezoelectric energy harvester based on stable MAPbI3-PVDF composite films

The homogeneous MAPbI3-PVDF composite films with various volume factions of MAPbI3 were realized using simple solution technique, which show predominant dielectric and ferroelectric properties by varying the volume fraction of the MAPbI3. In particular, composite films containing 25 vol% MAPbI3 revealed a high dielectric constant and remanent polarization. 25 vol% MAPbI3-PVDF PEG with an active layer thickness of 97.7 µm has shown an enhancement in Voc of 45.6 V and Jsc of 4.7 µA/cm2.274