The Consequence of LiCF 3 SO 3 Concentrations and Swift Heavy O 7+ Ion Irradiation on Thermal, Electrical and Relaxation Properties of [PVA (47) -PEO (47) -EC (6) - LiCF 3 SO 3 (x)] Blend Electrolyte System

Invertis Journal of Science & Technology Pub Date : 2017-06-01 DOI:10.5958/2454-762X.2017.00012.9

P. Joge, D. Kanchan, Poonam Sharma, Manish S Jayswal, D. Awasthi

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Abstract

The blend specimens of [PVA (47) -PEO (47) -EC (6) -(LiCF 3 SO 3 )x] system are prepared for x = 3 to 11 wt % using solution cast technique. Portions of these blend films are exposed to swift heavy O 7+ ion radiations. Changes taking place in thermal, electrical and relaxation properties at various LiCF 3 SO 3 salt concentrations of all the blend specimens prior and after irradiation are thoroughly investigated. Relaxation time τ and Kohlrausch-William-Watt's exponent β which throw light on the relaxation dynamics of the blend samples are calculated using modulus formalism. For both, prior as well as after irradiation, all these properties are found to be optimum at 9 wt% of salt concentration. However, irradiation has led to a significant enhancement in these properties of the blends at all salt concentrations. Scaling of modulus is carried out to analyse time-composition superposition principle. Relaxation dynamics is observed to be independent of salt concentration in cases of both, pristine and irradiated blends.

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licf3so3浓度和快速重o7 +离子辐照对[PVA (47) - peo (47) - ec (6) - licf3so3 (x)]共混电解质体系热、电和弛豫性能的影响

采用溶液铸造法制备了[PVA (47) - peo (47) - ec (6) -(licf3so3)x]体系共混试样，样品质量分数为x = 3 ~ 11wt %。这些混合薄膜的一部分暴露在快速的重o7 +离子辐射下。研究了不同licf3so3盐浓度辐照前后混合试样的热学、电学和弛豫性能的变化。利用模量公式计算了混合样品的弛豫时间τ和Kohlrausch-William-Watt指数β，揭示了混合样品的弛豫动力学。在辐照前和辐照后，在盐浓度为9%时，所有这些特性都是最佳的。然而，在所有盐浓度下，辐照导致混合物的这些特性显著增强。对模量进行标度，分析时间-成分叠加原理。在原始和辐照混合物的情况下，观察到松弛动力学与盐浓度无关。

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