利用放电等离子烧结技术制备了宽带隙三元半导体化合物CuIn5Se8,并对其热电性能进行了研究.物相分析表明,化合物为单相CuIn5Se8,带隙宽度为1.13 eV,比In2Se3合金的低.电学性能测试结果表明,随温度升高Seebeck系数绝对值从370.0 μV·K-1降低到263.0 μV·K-1,而电导率则随温度迅速增大.在818 K时,其电导率达到最大值2.92× 103 Ω-1·m-1,热导率为0.50 W.K-1·m-1,最高热电优值ZT值达到0.33.
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