Structural, vibrational and electrical characterization of PVA-NH4Br polymer electrolyte system

M. Hema; S. Selvasekerapandian; A. Sakunthala; D. Arunkumar; H. Nithya

doi:10.1016/j.physb.2008.02.001

Structural, vibrational and electrical characterization of PVA-NH₄Br polymer electrolyte system

M. Hema, S. Selvasekerapandian, A. Sakunthala, D. Arunkumar, H. Nithya

Research output: Contribution to journal › Article › peer-review

190 Citations (Scopus)

Abstract

Polymer electrolyte based on PVA doped with different concentrations of NH₄Br has been prepared by solution casting technique. The complexation of the prepared polymer electrolytes has been studied using X-ray diffraction (XRD) and Fourier transform infra red (FTIR) spectroscopy. The maximum ionic conductivity (5.7×10^-4 S cm^-1) has been obtained for 25 mol% NH₄Br-doped PVA polymer electrolyte. The temperature dependence of ionic conductivity of the prepared polymer electrolytes obeys Arrhenius law. The ionic transference number of mobile ions has been estimated by dc polarization method and the results reveal that the conducting species are predominantly ions. The dielectric behavior of the polymer electrolytes has been analyzed using dielectric permittivity and electric modulus spectra.

Original language	English
Pages (from-to)	2740-2747
Number of pages	8
Journal	Physica B: Condensed Matter
Volume	403
Issue number	17
DOIs	https://doi.org/10.1016/j.physb.2008.02.001
Publication status	Published - 2008 Aug 1
Externally published	Yes

Keywords

FTIR
Ionic conductivity
Polymer electrolyte
Transference number
XRD

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2008.02.001

Cite this

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title = "Structural, vibrational and electrical characterization of PVA-NH4Br polymer electrolyte system",

abstract = "Polymer electrolyte based on PVA doped with different concentrations of NH4Br has been prepared by solution casting technique. The complexation of the prepared polymer electrolytes has been studied using X-ray diffraction (XRD) and Fourier transform infra red (FTIR) spectroscopy. The maximum ionic conductivity (5.7×10-4 S cm-1) has been obtained for 25 mol% NH4Br-doped PVA polymer electrolyte. The temperature dependence of ionic conductivity of the prepared polymer electrolytes obeys Arrhenius law. The ionic transference number of mobile ions has been estimated by dc polarization method and the results reveal that the conducting species are predominantly ions. The dielectric behavior of the polymer electrolytes has been analyzed using dielectric permittivity and electric modulus spectra.",

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author = "M. Hema and S. Selvasekerapandian and A. Sakunthala and D. Arunkumar and H. Nithya",

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T1 - Structural, vibrational and electrical characterization of PVA-NH4Br polymer electrolyte system

AU - Hema, M.

AU - Selvasekerapandian, S.

AU - Sakunthala, A.

AU - Arunkumar, D.

AU - Nithya, H.

PY - 2008/8/1

Y1 - 2008/8/1

N2 - Polymer electrolyte based on PVA doped with different concentrations of NH4Br has been prepared by solution casting technique. The complexation of the prepared polymer electrolytes has been studied using X-ray diffraction (XRD) and Fourier transform infra red (FTIR) spectroscopy. The maximum ionic conductivity (5.7×10-4 S cm-1) has been obtained for 25 mol% NH4Br-doped PVA polymer electrolyte. The temperature dependence of ionic conductivity of the prepared polymer electrolytes obeys Arrhenius law. The ionic transference number of mobile ions has been estimated by dc polarization method and the results reveal that the conducting species are predominantly ions. The dielectric behavior of the polymer electrolytes has been analyzed using dielectric permittivity and electric modulus spectra.

AB - Polymer electrolyte based on PVA doped with different concentrations of NH4Br has been prepared by solution casting technique. The complexation of the prepared polymer electrolytes has been studied using X-ray diffraction (XRD) and Fourier transform infra red (FTIR) spectroscopy. The maximum ionic conductivity (5.7×10-4 S cm-1) has been obtained for 25 mol% NH4Br-doped PVA polymer electrolyte. The temperature dependence of ionic conductivity of the prepared polymer electrolytes obeys Arrhenius law. The ionic transference number of mobile ions has been estimated by dc polarization method and the results reveal that the conducting species are predominantly ions. The dielectric behavior of the polymer electrolytes has been analyzed using dielectric permittivity and electric modulus spectra.

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KW - Polymer electrolyte

KW - Transference number

KW - XRD

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