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Thermoelectric properties of SnzCo8Sb24 skutterudites
V. Damodara das
Published in
Volume: 141
Issue: 4
Pages: 233 - 237
Sn-filled CoSb3 skutterudite compounds were synthesized by the induction melting process. Formation of a single δ-phase of the synthesized materials was confirmed by X-ray diffraction analysis. The temperature dependences of the Seebeck coefficient, electrical resistivity and thermal conductivity were examined in the temperature range of 300-700 K. Positive Seebeck and Hall coefficients confirmed p-type conductivity. Electrical resistivity increased with increasing temperature, which shows that the Sn-filled CoSb3 skutterudite is a degenerate semiconductor. The thermal conductivity was reduced by Sn-filling because the filler atoms acted as phonon scattering centers in the skutterudite lattice. The lowest thermal conductivity was achieved in the composition of Sn0.25Co8Sb24. © 2006 Elsevier Ltd. All rights reserved.
About the journal
JournalSolid State Communications
Open AccessNo
Concepts (12)
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    Electric conductivity
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    Hall effect
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    Seebeck effect
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    Semiconductor materials
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    Synthesis (chemical)
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    Thermal conductivity
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    X ray diffraction analysis
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    Electronic transport
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    Induction melting
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    Cobalt compounds