Characterization of piezoelectric nanofibers for energy harvesting applications

This paper aims to investigate the energy harvesting capabilities of two piezoelectric nanogenerators based on ceramic and polymeric nanofibers. The nanofibers are produced via electrospinning and assembled with the electrodes to fabricate flexible and wearable devices. The specimens are mechanically stressed at low frequencies and the piezo-current is used to charge a capacitor. The performances of the piezoelectric nanofibers are then compared with those of a commercial ceramic piezoelectric disk.