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Thermoelectric properties of CoSb 3 with maize‐like structure
Author(s) -
Li Shanghua,
He Zeming,
Toprak Muhammet S.,
Stiewe Christian,
Müller Eckhard,
Muhammed Mamoun
Publication year - 2007
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.200701172
Subject(s) - thermoelectric effect , materials science , thermal conductivity , thermoelectric materials , fabrication , seebeck coefficient , electrical resistivity and conductivity , consolidation (business) , optoelectronics , composite material , thermodynamics , electrical engineering , physics , medicine , alternative medicine , accounting , pathology , business , engineering
Maize‐like CoSb 3 powders were obtained via the chemical alloying method. After the consolidation of the nanopowder using hot press, the CoSb 3 compact shows a higher Seebeck coefficient and lower thermal conductivity. For the investigated CoSb 3 , a ZT of 0.15 at 673 K is shown. Though the achieved ZT does not reach the optimal value (0.17 to 0.18) for pure CoSb 3 , due to its lower electrical conductivity, the novel structure fabrication provides an interesting and promising approach to enhancing the thermoelectric performance. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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