Journal ArticleDOI
Relaxation dynamics of lithium ions in lead bismuthate glasses
A. Pan,Aswini Ghosh +1 more
TLDR
In this article, the authors investigated the relaxation dynamics of lithium ions in lead bismuthate glasses in the frequency range from 10 Hz to 2 MHz and in the temperature range from 303--553 K.Abstract:
We have investigated relaxation dynamics of lithium ions in lead bismuthate glasses in the frequency range from 10 Hz to 2 MHz and in the temperature range from 303--553 K. Using the Anderson-Stuart model, we have calculated the activation energy, which is observed to be lower than that of the dc conductivity. We have studied the relaxation mechanism of these glasses in the framework of the electric modulus and conductivity formalisms. The microscopic parameters obtained from these formalisms have been compared. We have also calculated the decoupling index and correlated them with the stretched exponential relaxation parameter and the dc conductivity.read more
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Solid polymer electrolytes based on polyethylene oxide and lithium trifluoro- methane sulfonate (PEO–LiCF3SO3): Ionic conductivity and dielectric relaxation
TL;DR: In this paper, a dielectric loss spectra showed the presence of one relaxation for all compositions, which is associated with the motions of the Li ion coordinated polymer segments, and the relaxation has been characterized by the empirical Havriliak-Negami (H-N) equation.
Journal ArticleDOI
Perspectives for Polymer Electrolytes: A View from Fundamentals of Ionic Conductivity
TL;DR: A brief overview of the field of polymer electrolytes can be found in this paper, with the focus on single-ion conducting polymers, which have significant advantages relative to electrically conductive polymers.
Journal ArticleDOI
XRD and FTIR structural investigations of erbium-doped bismuth–lead–silver glasses and glass ceramics
TL;DR: In this article, the erbium ions play the role of a network modifier in the studied glasses and the results show that the glass or glass ceramic network structure resembles to that of the host matrix.
Journal ArticleDOI
Fundamental Limitations of Ionic Conductivity in Polymerized Ionic Liquids
Eric W. Stacy,Catalin Gainaru,Mallory Gobet,Zaneta Wojnarowska,Zaneta Wojnarowska,Vera Bocharova,Steven Greenbaum,Alexei P. Sokolov +7 more
TL;DR: In this paper, the authors present detailed studies of ionic conductivity in several polymerized ionic liquids (PolyILs) with different size of mobile ions, indicating a competition between Coulombic and elastic forces controlling ion transport in PolyILs.
Journal ArticleDOI
Thermal, structural and magnetic properties of some zinc phosphate glasses doped with manganese ions
TL;DR: In this article, the compositional dependence of the glass transition (T g ), crystallization (T p ) and melting temperatures were determined by means of differential thermal analysis (DTA), electron paramagnetic resonance (EPR) and magnetic susceptibility measurements.
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