TITLE:
A Decisive Study on Dielectric Response of Bi2O3/Polystyrene & Bi2O3/PVDF Composite as Flexible Electrodes for Energy Storage
AUTHORS:
Dinesh Kumar Yadav, Anju Yadav, Sushil Kumar Jain, Narendra Jakhar, Balram Tripathi
KEYWORDS:
Bismuth Oxide (Bi2O3), Polymer Composites, Surface Morphology, Dielectric Constant, Energy Storage
JOURNAL NAME:
Open Journal of Composite Materials,
Vol.13 No.1,
January
3,
2023
ABSTRACT: In this manuscript a comparative study on Bi2O3/polystyrene and Bi2O3/PVDF composites has been executed via analysis of structural, bonding, surface morphology and dielectric response of composites for energy storage. The composites have been synthesized using solution cast method by varying concentrations of Bi2O3 (BO = 1 - 5 mw%) into polystyrene (PS) and polyvinylidene fluoride (PVDF) polymers respectively. X-ray diffraction confirms the generation of crystallinity, Fourier transform infrared (FT-IR) spectroscopy confirms bonding behavior and scanning electron microscopy (SEM) confirms uniform distribution of Bi2O3 (BO) in PS and PVDF polymers. Impedance spectroscopy has been employed for determination of dielectric response of the fabricated composites. The dielectric constant has been found to be increased as 1.4 times of pristine PS to BO5%PS95% composites and 1.8 times of pristine PVDF to BO5%PVDF95% composites respectively. These high dielectric composite electrodes are useful for flexible energy storage devices.