High‐temperature thermoelectric properties of p‐type skutterudites Yb  x   Co 3 FeSb 12 | Zendy

Dong Yongkwan | Zendy; Puneet Pooja | Zendy; Tritt Terry M. | Zendy; Nolas George S. | Zendy

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High‐temperature thermoelectric properties of p‐type skutterudites Yb x Co 3 FeSb 12

Author(s) -

Dong Yongkwan,

Puneet Pooja,

Tritt Terry M.,

Nolas George S.

Publication year - 2013

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.201307126

Subject(s) - thermoelectric effect , thermoelectric materials , seebeck coefficient , electrical resistivity and conductivity , materials science , rietveld refinement , crystallite , thermal conductivity , analytical chemistry (journal) , metallurgy , crystal structure , chemistry , thermodynamics , crystallography , physics , composite material , quantum mechanics , chromatography

Partially filled polycrystalline p‐type skutterudites of nominal compositions Yb x Co 3 FeSb 12 were synthesized and their thermoelectric properties characterized. The compositions and filling fractions were confirmed with a combination of Rietveld refinement and elemental analysis. The thermoelectric properties were evaluated from 300 K to 810 K. The Seebeck coefficient and resistivity increase while the thermal conductivity decreases with increasing Yb content. A maximum ZT value of 0.85 was obtained at 810 K. This work is part of a continuing effort to enhance the thermoelectric properties of p‐type skutterudites, as this class of materials continues to be of interest for thermoelectrics applications. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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