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GURPREET KAUR1,* , DINESH SINGH RANA1
Composites of Polyvinylidene flouride (PVDF) with different percentages of Barium Titanate (BaTiO3) has been synthesized by solution casting method. This study explores the influence of BaTiO3 particles on dielectric properties of PVDF composite films at elevated temperatures. The relative dielectric permittivity increases upto 90 with the increase in the BaTiO3 particle concentration with good stability of dielectric loss and enhances ac conductivity upto three order of magnitude as compare to pure PVDF. The current-voltage characteristic plots of PVDF-BaTiO3 composite films show the dependence of current on electric field, temperature and filler concentration with better understanding of role played by charge carriers in conduction mechanism. The current-voltage characteristic plots show two conduction regions: one is ohmic conduction at low field and another is non ohmic conduction at higher field which is better interpreted in the light of Richardson and Frenkel models. These characteristics of composite film open the window to develop flexible material for high energy storing devices.
PVDF, Barium Titanate, Dielectric permittivity, Conductivity, Charge carriers, Ionic hopping, Schottky and Frenkel plot.
GURPREET KAUR, DINESH SINGH RANA, Investigation on dielectric performance and charge transport mechanism in synthesized PVDF films embedded with BaTiO3 nanofillers for energy harvesting applications, Optoelectronics and Advanced Materials - Rapid Communications, 15, 11-12, November-December 2021, pp.613-623 (2021).
Submitted at: May 3, 2021
Accepted at: Nov. 24, 2021
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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