Piezoelectric responses of PVDF-KBT electrospun nanocomposite fibres via nanoscale mapping

The piezoelectric properties of polyvinylidene fluoride (PVDF) and K0 & sdot;5Bi0 & sdot;5TiO3 (KBT) electrospun composite nanofibers were studied in view of their application for Piezoelectric generator (PEG) devices. The orientation of the polar beta-phase throughout the PVDF/KBT nanofibers was investigated at the nanoscale, revealing a maximum beta-phase content of 67%. Remarkably enhanced piezoelectric responses were observed in the PVDF-KBT composite, supported by comprehensive analyses including local hysteresis loops piezoresponse mapping and advanced mapping AFM-based techniques. The PVDF/KBT nanofiber-based PEG demonstrated consistent performance, with an output voltage of 16 V, a current of 0.85 mu A/cm2, and a power density of 13.6 mu W/cm2 at 107 omega, showcasing its potential as a sustainable energy solution with the ability to recharge portable electronic devices.

Automated summary

The piezoelectric properties of PVDF and KBT electrospun composite nanofibers were studied for their potential application in Piezoelectric generator (PEG) devices. The PVDF-KBT composite exhibited significantly enhanced piezoelectric responses compared to pure PVDF, showcasing its potential as a sustainable energy solution for recharging portable electronic devices.