Abstract Achieving high power factor values for BiSbTe alloys is important for further elevation of their thermoelectric performance. In this report, Bi 0.4 Sb 1.6 Te 3 bulk samples were prepared by a fusion method followed by hot pressing at different temperatures (523 K, 573 K, 623 K and 663 K), and their thermoelectric properties were investigated from 300 K to 500 K. It was found that the power factor and thermal conductivity increased significantly with increasing hot-pressing temperature. A record power factor of 53.8 μW/(cm K 2 ) at 300 K was achieved for the sample hot pressed at 663 K. In addition, a maximum ZT of 1.3 at 413 K and average ZT ave of 1.2 at 300–500 K were achieved for the sample hot pressed at 623 K.

中文翻译：

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通过调节热压温度实现p型BiSbTe热电材料的高功率因数

摘要 实现 BiSbTe 合金的高功率因数值对于进一步提升其热电性能非常重要。在本报告中，Bi 0.4 Sb 1.6 Te 3 块状样品通过熔融法制备，然后在不同温度（523 K、573 K、623 K 和 663 K）下热压，并在 300 K 至 500 K. 发现功率因数和热导率随着热压温度的升高而显着增加。在 663 K 下热压的样品在 300 K 下达到了创纪录的 53.8 μW/(cm K 2 ) 功率因数。此外，在 413 K 下的最大 ZT 为 1.3，在 300–500 K 下平均 ZT ave 为 1.2样品在 623 K 下热压达到的。