Shetty, S.Mahendran, A.R.Anandhan, S.2026-02-052020Soft Matter, 2020, 16, 24, pp. 5679-56881744683Xhttps://doi.org/10.1039/d0sm00341ghttps://idr.nitk.ac.in/handle/123456789/23845Herein, a flexible piezoelectric nanogenerator composed of electrospun talc/PVDF [poly(vinylidene fluoride)] nanocomposite fabrics has been developed. These nanocomposite fabrics demonstrated enhanced mechanical and piezoelectric properties compared with pristine PVDF nanofabrics. In particular, nanocomposite fabrics with 0.50 wt% talc yielded 89.6% of polar ?-phase in the PVDF matrix, thereby augmenting its piezoelectric response. X-ray diffraction, Fourier transform infrared spectroscopy, and differential scanning calorimetry conclusively affirmed the promotion of polar ?-phase in the talc/PVDF nanocomposite fabrics. The 0.50 wt% talc/PVDF nanocomposite fabric based nanogenerator produced an open-circuit voltage and power density of 9.1 V and 1.12 ?W cm-2, respectively, under repetitive finger tapping mode (under a load of 3.8 N). Furthermore, the nanogenerator was also subjected to frequency modulated-shaker mode, wherein an output voltage of 8.9 V was produced. Improved flexibility, mechanical robustness, and enhanced piezoelectric responsiveness of this nanogenerator could possibly pave the way for its use in portable self-powered devices. This journal is © 2020 The Royal Society of Chemistry.Differential scanning calorimetryFluorine compoundsFourier transform infrared spectroscopyNanocompositesOpen circuit voltagePiezoelectricityTalcFrequency modulatedMechanical robustnessOutput voltagesPiezoelectric nanogeneratorPiezoelectric propertyPiezoelectric responsePoly(vinylidene fluoride)Power densitiesNanogenerators