Abstract
The search for alternative energy sources is presently at the forefront of␣applied research. In this context, thermoelectricity for direct energy conversion from thermal to electrical energy plays an important role. This␣paper is␣concerned 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 ≤ 33 μW/cm K2) were obtained for (GeTe)0.95(Bi2Te3)0.05 composition.
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Gelbstein, Y., Ben-Yehuda, O., Pinhas, E. et al. Thermoelectric Properties of (Pb,Sn,Ge)Te-Based Alloys. J. Electron. Mater. 38, 1478–1482 (2009). https://doi.org/10.1007/s11664-008-0652-8
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DOI: https://doi.org/10.1007/s11664-008-0652-8