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首页> 外文会议>8th Asian Conference on Solid State Ionics: Trends in the New Millennium; Dec 15-19, 2002; Langkawi, Malaysia >DC AND AC CONDUCTIVITY STUDIES ON Ag_2O-P_2O_5-V_2O_5 GLASS SYSTEM
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DC AND AC CONDUCTIVITY STUDIES ON Ag_2O-P_2O_5-V_2O_5 GLASS SYSTEM

机译：Ag_2O-P_2O_5-V_2O_5玻璃系统的直流和交流电导率研究

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摘要

Composition, temperature and frequency dependence conductivity studies have been carried out on xAg_2O-(50-x)P_2O_5-50V_2O_5 (x = 5 to 40 mol%) glass system. The dc conductivity is found to increase with increase of Ag_2O concentration up to 30 mol% and further increase of Ag_2O concentration the conductivity decreases sharply. The activation energy also shows compositional dependence. The ac conductivity data has been analyzed by fitting the data in to Almond-West type power law behaviour σ (?) = σ (0) + A ω~s. The values of s were found to decrease with the increase of temperature and show a weak minimum around 400K. The results are discussed on the basis of existing models by considering the structural groups present in these glasses.
机译：已经在xAg_2O-（50-x）P_2O_5-50V_2O_5（x = 5至40 mol％）玻璃系统上进行了成分，温度和频率依赖性电导率研究。发现直流电导率随着Ag_2O浓度的增加而增加，直至30mol％，并且随着Ag_2O浓度的进一步增加，电导率急剧下降。活化能还显示出成分依赖性。通过将数据拟合为Almond-West型幂律行为σ（）=σ（0）+ Aω〜s来分析交流电导率数据。发现s的值随温度的升高而降低，并且在400K附近显示出一个极小的最小值。通过考虑这些眼镜中存在的结构基团，在现有模型的基础上讨论了结果。

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