氧化delafosite CuRh1-xMgxO2的高温热电性能

H. Kuriyama, M. Nohara, T. Sasagawa, K. Takubo, T. Mizokawa, K. Kimura, H. Takagi
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引用次数: 9

摘要

我们报道了掺杂氧化delafoste CuRh1-xMgxO2的高温热电性质。母体化合物CuRhO2是带绝缘体,在Mg掺杂Rh后变为金属。我们发现,多晶curh - xmgxo2在1000 K左右的高温下,电阻率低至6 μ m,但热电功率S ~ +270 μ v /K。将这些与导热系数kappa ~ 80 mW/cm K相结合,我们估计了一个大的无因次值zt7sim;1000 K时0.15
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-temperature thermoelectric properties of Delafossite oxide CuRh1-xMgxO2
We report high temperature thermoelectric properties of doped Delafossite oxide CuRh1-xMgxO2. The parent compound CuRhO2 is a band insulator and becomes metallic upon Mg doping for Rh. We found that polycrystalline CuRh1-xMgxO2 shows a large thermoelectric power S ~ +270 muV/K despite its low resistivity ~6 mOmegacm at high temperatures around 1000 K. Combining these with a thermal conductivity kappa ~ 80 mW/cm K, we estimate a large dimensionless figure of merit ZT 7sim; 0.15 at 1000 K
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