thermoelectric properties of Co₄Sb₁₂₋ₓTeₓ synthesized at different pressure

Skutterudite compounds Co₄Sb₁₂₋ₓTeₓ (0.1≤×≤0.8) was synthesized successfully by high temperature and high pressure (HTHP) method and characterized with X-ray diffractometry and thermoelectric properties measurements. The samples prepared by HTHP are nearly with the single phase CoSb₃. The electrical...

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Bibliographic Details
Published in:Materials letters 2011-03, Vol.65 (6), p.1057-1059
Main Authors: Deng, L, Jia, X.P, Su, T.C, Jiang, Y.P, Zheng, S.Z, Guo, X, Ma, H.A
Format: Article
Language:English
Subjects:
Coefficients
Diffraction
electrical resistance
Electrical resistivity
Heat transfer
temperature
Thermal conductivity
Thermoelectric materials
Thermoelectricity
X-radiation
X-rays
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Summary:Skutterudite compounds Co₄Sb₁₂₋ₓTeₓ (0.1≤×≤0.8) was synthesized successfully by high temperature and high pressure (HTHP) method and characterized with X-ray diffractometry and thermoelectric properties measurements. The samples prepared by HTHP are nearly with the single phase CoSb₃. The electrical resistivity, Seebeck coefficient and thermal conductivity were all depending on synthetic pressure and the Te content of the Skutterudite compounds were performed at room temperature. As our expected, the Seebeck coefficient increased with an increase of the synthetic pressure and the thermal conductivity decreased with an increase of the synthetic pressure. These results indicated that HTHP technique may be helpful to prepare thermoelectric materials with enhanced thermoelectric properties.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2010.12.052