High output piezoelectric composite nanogenerators composed of FAPbBr 3 -PVDF

The FAPbBrc perovskite nanoparticles are applied to mix in PVDF polymer for piezoelectric composite nanogenerators. The FAPbBn-PVDF based piezoelectric nanogenerators exhibit maximum piezoelectric outputs reaching over 29.5 V and 6.15 μA/cm 2 . The improved performance is attributed to the usage of PVDF polymer which working as the major matrix resulting in enhanced stress on the homogeneously distributed piezoelectric FAPbBn nanoparticles. Then the output piezoelectric signals were utilized to charge capacitances which can lighten purchased LEDs. The work demonstrates an effective approach to develop high-performance energy harvesters based on organometal trihalide perovskite materials.