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Development of a new flexible nanogenerator from electrospun nanofabric based on PVDF/talc nanosheets composites

Abstract

Herein, 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 β-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 β-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 μW/cm2, respectively under repetitive finger imparting mode (under a load of 3.8 N). Further, 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 way to its use in portable self –powered devices.

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Supplementary files

Article information


Submitted
26 Feb 2020
Accepted
13 May 2020
First published
14 May 2020

Soft Matter, 2020, Accepted Manuscript
Article type
Paper

Development of a new flexible nanogenerator from electrospun nanofabric based on PVDF/talc nanosheets composites

S. Shetty, A. Mahendran and S. Anandhan, Soft Matter, 2020, Accepted Manuscript , DOI: 10.1039/D0SM00341G

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