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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Significance of intermediate range structure for electrical conduction in alkali germanate glasses
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Significance of intermediate range structure for electrical conduction in alkali germanate glasses

机译：碱式锗酸盐玻璃中程结构对导电的意义

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摘要

The dc ionic conductivity of the xM(2)O:(1-x)GeO2 glass series has been measured as a function of temperature and composition where M is K or Rb and 0.0023 less than or equal to x less than or equal to 0.60. The structure of the same glasses have been determined by measuring X-ray absorption fine structures, densities and X-ray photoelectron, Raman and infrared absorption spectroscopies. With increasing alkali concentration the activation energy of conductivity decreases followed by an increase and then a more rapid decrease at x approximate to 0.1. By correlating this complex composition dependence of electrical conductivity with the structural information we demonstrate that the intermediate range structure of glass affects ion transport in alkali germanate glasses. (C) 1997 Elsevier Science B.V.
机译：已测量xM（2）O：（1-x）GeO2玻璃系的直流离子电导率与温度和成分的关系，其中M为K或Rb，且0.0023小于或等于x小于或等于0.60 。通过测量X射线吸收的精细结构，密度和X射线光电子，拉曼光谱和红外吸收光谱，可以确定相同玻璃的结构。随着碱浓度的增加，电导率的活化能降低，然后升高，然后在x接近0.1时迅速降低。通过将这种复杂的电导率的成分依赖性与结构信息相关联，我们证明了玻璃的中间范围结构会影响碱金属锗酸盐玻璃中的离子传输。 （C）1997年Elsevier Science B.V.

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