Thermoelectric Properties of (Pb,Sn,Ge)Te-Based Alloys

被引:56
作者
Gelbstein, Y. [1 ]
Ben-Yehuda, O. [1 ]
Pinhas, E. [1 ]
Edrei, T. [1 ]
Sadia, Y. [1 ]
Dashevsky, Z. [1 ]
Dariel, M. P. [1 ]
机构
[1] Ben Gurion Univ Negev, Dept Mat Engn, IL-84105 Beer Sheva, Israel
关键词
Thermoelectrics; PbTe; GeTe; SPS;
D O I
10.1007/s11664-008-0652-8
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The search for alternative energy sources is presently at the forefront ofa applied pound research. In this context, thermoelectricity for direct energy conversion from thermal to electrical energy plays an important role. Thisa paper pound isa concerned pound with the development of highly efficient p-type [(PbTe)(SnTe)(Bi2Te3)] (x) (GeTe)(1-x) alloys for thermoelectric applications using spark plasma sintering (SPS). Varying the carrier concentration of GeTe was achieved by alloying of PbTe, SnTe, and/or Bi2Te3. The rhombohedral to cubic phase transition temperature, T (c), was found to be sensitive to the degree of alloying. Highest power factor values (P a parts per thousand currency sign 33 mu W/cm K-2) were obtained for (GeTe)(0.95)(Bi2Te3)(0.05) composition.
引用
收藏
页码:1478 / 1482
页数:5
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