Effect of Y<sup>3+</sup> Doping on Thermoelectric Properties of CaMnO<sub>3</sub>

SHENG De-xue; HE Yi; GONG Peng; SONG Shao-wei; LIU Yang-qiong

doi:10.3969/j.issn.1673-159X.2015.01.002

SHENG De-xue, HE Yi, GONG Peng, SONG Shao-wei, LIU Yang-qiong. Effect of Y3+ Doping on Thermoelectric Properties of CaMnO3[J]. Journal of Xihua University(Natural Science Edition), 2015, 34(1): 14-16, 26. DOI: 10.3969/j.issn.1673-159X.2015.01.002

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Effect of Y³⁺ Doping on Thermoelectric Properties of CaMnO₃

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CaMnO₃ is an important N-type thermoelectric material. (Ca_1-x Y_x)MnO₃(x =0, 0.03, 0.05, 0.07, 0.09)thermoelectric samples were synthesized based on solid state reaction method, and thermoelectric properties were measured with self-made equipment. The results show that Y³⁺ doping can improve the thermoelectric properties effectively. As for Ca_0.91Y_0.09MnO₃, during the test temperature of high side reaches 880K, the resistivity, Seebeck coefficient and maximum output power are equal to 74 mΩ · m, -112 μV/K, 68 mW, respectively.

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Effect of Y3+ Doping on Thermoelectric Properties of CaMnO3

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Effect of Y³⁺ Doping on Thermoelectric Properties of CaMnO₃