Electrical conduction properties of Sr-doped Bi4</sub>(SiO4</sub>)3</sub> with the eulytite-type structure

Naoto Kitamura; Koji Amezawa; Yoshiharu Uchimoto; Yoichi Tomii; Teiichi Hanada

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Electrical conduction properties of Sr-doped Bi4(SiO4)3 with the eulytite-type structure

机译：富硒型结构掺Sr的Bi4 （SiO4 ）3 的导电性能

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Electrical conduction in 1 mol% Sr-doped Bi4(SiO4)3 with the eulytite-type structure at elevated temperatures was investigated with conductivity measurements. Conductivity of the material under wet condition was higher than that under dry condition, and were 1.2 × 10?6 – 9.7 × 10?5 S cm?1 at 500–850 °C. From H/D isotope effects and p(O2)-dependencies of the conductivity, it was found that the Sr-doped Bi4(SiO4)3 exhibited protonic conduction at all the temperatures investigated while contribution of p-type conduction became significant with increasing p(O2) and/or temperature. Protonic and p-type conductions in the material were discussed in terms of defect equilibria.

机译：通过电导率测量研究了1 mol％的Sr掺杂Bi4 （SiO4 ）3 在高温下具有真绿沸石型结构的导电性。湿态条件下的电导率高于干态条件下的电导率，在500–850°时为1.2×10？6 – 9.7×10？5 S cm？1 / sup> C。从H / D同位素效应和电导率的p（O2 ）依赖性，发现掺Sr的Bi4 （SiO4 ）3 在200nm处表现出质子传导。在所有温度下，随着p（O2 ）和/或温度的升高，p型传导的贡献变得显着。根据缺陷平衡讨论了材料中的质子和p型传导。

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来源
《Journal of Materials Science》 |2007年第16期|6566-6571|共6页
作者
Naoto Kitamura; Koji Amezawa; Yoshiharu Uchimoto; Yoichi Tomii; Teiichi Hanada;
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Graduate School of Human and Environmental Studies Kyoto University Sakyo-ku Kyoto 606-8501 Japan;

Graduate School of Human and Environmental Studies Kyoto University Sakyo-ku Kyoto 606-8501 Japan;

Graduate School of Human and Environmental Studies Kyoto University Sakyo-ku Kyoto 606-8501 Japan;

Graduate School of Energy Science Kyoto University Sakyo-ku Kyoto 606-8502 Japan;

Graduate School of Science Kyoto University Sakyo-ku Kyoto 606-8502 Japan;

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Electrical conduction properties of Sr-doped Bi4(SiO4)3 with the eulytite-type structure

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