XVII INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS ICT 98
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1998年
关键词:
D O I:
10.1109/ICT.1998.740425
中图分类号:
O414.1 [热力学];
学科分类号:
摘要:
The figure of merit z of commercial Peltier modules has been measured to drop from z = 2.3 x 10(-3) K-1 with the warm end near 295 K to z = 4 x 10(-4) K-1 with the warm end at 80 K. Therefore, for reaching the superconducting temperature range even for the cuprates with the highest critical temperature T-c, approximate to 130 K, new thermoelectric materials with their maximum value of z around 150 K or lower must be developed. We present experimental results on p- and n-doped compounds of the family Bi2-xSbxTe3-ySey showing improved values of z at 150 K and below. We have studied in particular the influence of sintering.