High-performance piezoelectric nanogenerators composed of formamidinium lead halide perovskite nanoparticles and poly(vinylidene fluoride)

A high-performance piezoelectric nanogenerator is constructed based on a composite combining piezoelectric formamidinium lead halide perovskite nanoparticles (FAPbBr3 NPs) with piezoelectric polymer poly(vinylidene fluoride) (PVDF). This piezoelectric nanogenerator can generate output voltage of 30 V and current density of 6.2 μA cm−2, which is capable of charging a capacitor and lighting a commercial LED.177