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Role of Multiferroic Filler on the AC Response of Bi 1‐ x Ba x FeO 3 doped PVA:NH 4 CH 3 COO Nanocomposite Gel Polymer Electrolytes
Author(s) -
Singh C. P.,
Shukla P. K.,
Agrawal S. L.
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201900032
Subject(s) - materials science , dielectric , electrolyte , conductivity , ionic conductivity , nanocomposite , polymer , doping , dielectric loss , analytical chemistry (journal) , composite material , electrode , chemistry , organic chemistry , optoelectronics
The frequency dependent AC conductivity and dielectric studies of multiferroic filler (Bi 1‐ x Ba x FeO 3 ) doped nanocomposite gel polymer electrolyte (NCGPEs) based on PVA:(NH 4 CH 3 COO) are investigated in the present work. The nano composite gel polymer electrolyte systems are synthesized for various filler concentrations by solution cast method. The effect of filler concentration on ionic conductivity is studied using AC impedance technique in the frequency range 1–10 6 Hz. X‐ray diffraction studies reveal the formation of nanocomposite gel polymer electrolyte. The low frequency dispersion in the dielectric response of electrolytes shows the relaxation contribution is superimposed with electrode polarization effects. The relaxation peaks in the NCGPEs are found to shift toward higher frequency side with increasing filler concentration and are suitably correlated to change in morphology of the gel electrolyte system. The variation of AC conductivity with frequency is seen to obey Jonscher's universal power law with the exception of small deviation in the low frequency regime. Modulus formalism of dielectric response suggests that the ion transport is strongly coupled to the polymer segmental motion.