Transport properties of thermoelectric materials for coolers |
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Authors: | A. Sher M. Shiloh D. Ilzycer D. Eger |
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Affiliation: | (1) Soreq Nuclear Research Centre, 70600 Yavne, Israel |
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Abstract: | The Seebeck coefficient, thermal conductivity, electrical conductivity and Hall coefficient of cooler grade, p-and n-type ternary alloys of Bi2Te3-Sb2Te3-Sb2Se3 were measured between 10 and 300 K. Between 300 K and about 150 K the temperature dependence of the transport properties can be explained by assuming nondegeneracy and a lattice scattering mechanism. The difference between the temperature dependence of the Hall effect in n-and p-type alloys can be explained by the presence of sub-bands of light and heavy holes in the valence band of p-type alloys. |
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Keywords: | Bi2Te3-Sb2Te3-Sb2Se3 alloys thermoelectric materials transport properties |
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