A single microscopic approach for ionic transport in glassy and polymer electrolytes

Souquet, J.L.; Lévy, M.; Duclot, M.

doi:10.1016/0167-2738(94)90333-6

Cited by 97 publications

(72 citation statements)

References 9 publications

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“…The increasing conductivity with temperature can be linked to the decrease in viscosity and, hence, increased chain flexibility [24]. As the conductivity vs temperature data obeys Arrhenius relationship, the nature of cation transference is quite similar to that occurring in ionic crystals, where ions jump into neighboring vacant sites and, hence, increase the ionic conductivity [25]. Similar behavior has been observed in a number of other polymer electrolytes [26,27].…”

Section: Scanning Electron Microscopysupporting

confidence: 55%

Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Sekhar¹

2012

IOSRJAP

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Section: Scanning Electron Microscopysupporting

confidence: 55%

Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Sekhar¹

2012

IOSRJAP

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“…Recently, Souquet et al [16] developed a model, which gives a more precise image to explain the VTF behavior for the conductivity in alkali silicate melts. According to this model, the enhancement of the conductivity results from the local deformations of the macromolecular chains or network above T g .…”

Section: Discussionmentioning

confidence: 99%

Ionic Conductivity in Glasses and Melts (Up to 1950K): Application to the CaO?SiO2 System

Malki

Echegut²

2004

International Journal of Thermophysics

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The electrical properties of the CaO-SiO 2 system have been investigated in a wide temperature range (up to 1950 K) using a specific device developed in this laboratory. Conductivity data were obtained in the liquid, undercooled-liquid, and glassy states for two different compositions. In the solid state, the conductivity is determined by the jump of the Ca 2+ cations along the non-bridging oxygens. This mechanism is thermally activated with a high activation energy value. A second regime was observed in the molten state where the conductivity follows the phenomenological Vogel-Tammann-Fulcher (VTF) law. In this regime, the conductivity is enhanced because the softening and the deformation of the network facilitate the migration of the alkaline-earth cations.

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“…37 Since the temperature dependent conductivity data follows the Arrhenius behavior, the nature of cation transport is quite similar to that conducting polymer, where ions jump into neighboring vacant sites. 38 In the plots (a, b, and c), it is clear that the conductivity is found to increases with increasing of temperature in pure PEO as well as in the entire doped dye doped polymer. Similar behavior was observed in a number of PEO based electrolyte films.…”

Section: Conductivity Studiesmentioning

confidence: 91%

Optical and electrical characterization of (PEO+methyl violet) polymer electrolytes

Kilarkaje

Manjunatha

Devendrappa

2011

J of Applied Polymer Sci

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Optical properties and electrical conductivity of polyethylene oxide (PEO) with methyl violet dopant film have studied. The complexation of the methyl violet dopant with PEO was confirmed by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopic studies. The microstructure morphology have been analyzed by scanning electron microscope (SEM) for pure and dopant films. The UV-absorption studies were made in the wavelength range 190-1100 nm for pure and doped films. The dc electrical conductivity data was collected using two probe technique in the temperature range 303-333 K. The UV-visible spectra showed the absorption band at 190 nm for pure PEO and doped from 208-224 nm region with different absorption intensities. The absorption edge, direct and indirect band gap were estimated using Mott and Davis Model. The optical activation energy can be determined using the Urbach rule, for pure PEO it was found 2.38 eV and 1.28-4.08 eV for doped films. The absorption band was shifted toward the higher frequency, the direct and indirect band gap decreases with increasing of dopant concentration, corresponds to the allowed inter band transition of electron. The dc electrical conductivity results shows that it increases with increasing dopant weight percentage and temperature which corresponds to the enhancement of charge mobility in these dye doped polymers.

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A single microscopic approach for ionic transport in glassy and polymer electrolytes

Cited by 97 publications

References 9 publications

Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Effect of plasticizer on conductivity and cell parameters of (PMMA+NaClO4) polymer electrolyte system

Ionic Conductivity in Glasses and Melts (Up to 1950K): Application to the CaO?SiO2 System

Optical and electrical characterization of (PEO+methyl violet) polymer electrolytes

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