Investigation of electrospun piezoelectric P(VDF-TrFE) nanofiber-based nanogenerators for energy harvesting


Turdakyn N. Bekezhankyzy Z. Araby S. Montazami R. Bakenov Z. Kalimuldina G.
November 2023Elsevier Ltd

Energy Reports
2023#10628 - 636 pp.

A piezoelectric nanogenerator (PENG) from thin poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) polymer fiber films synthesized by the electrospinning method demonstrated the enhanced output. The β-phase content in thin films that is essential for piezo responses in polymers was analyzed using Fourier Transform Infrared Spectroscopy (FTIR), X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) imaging. The results showed an extremely high 92,8% of β-phase content in P(VDF-TrFE) thin films. The fabricated PENG device using P(VDF-TrFE) film demonstrated an outstanding peak-to-peak open-circuit voltage (Voc) of ∼25 V and short-circuit current (Isc) of 0.3 μA under 3 N applied force. The device could produce a maximum power density of ∼125 nW cm −2 under a 6 N load. The maximum voltage of ∼100 V was achieved with the compressive force of 20 N. Moreover, the ability to charge 0.1 μF capacity to ∼6.5 V within 180 sec was demonstrated under an external load of 6 N at 5 Hz. It can be concluded that the improved piezoelectric performance of PENG was achieved due to high β-phase content and the optimized synthesis route. The obtained electrical performance of PENG demonstrated its potential for powering low-power electronic devices by scavenging mechanical energy.

Electrospinning , Energy harvesting , P(VDF-TrFE) , Piezoelectric nanogenerator

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Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan
School of Medicine, Nazarbayev University, Kerey and Zhanibek Khans St, 4C95+6GV, Astana, 020000, Kazakhstan
Department of Mechanical Engineering, Iowa State University, Ames, 50011, IA, United States
Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave. 53, Astana, 010000, Kazakhstan

Department of Mechanical and Aerospace Engineering
School of Medicine
Department of Mechanical Engineering
Department of Chemical and Materials Engineering

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