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Cd13-xInySb10 (x approximate to 2.7, y approximate to 1.5): An Interstitial-Free Variant of Thermoelectric beta-Zn4Sb3
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry, Inorganic Chemistry.
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
Arizona State University.
Arizona State University.
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2009 (English)In: Chemistry - A European Journal, ISSN 0947-6539, E-ISSN 1521-3765, Vol. 15, no 27, 6704-6710 p.Article in journal (Refereed) Published
Abstract [en]

Although free from structural disorder, the new intermetallic compound Cd13−xInySb10 (see figure) displays similarly low thermal conductivity values as disordered thermoelectric β-Zn4Sb3 with an isostructural framework.

Cd13−xInySb10 (x≈2.7, y≈1.5) was synthesized in the form of mm-sized crystals from reaction mixtures containing excess cadmium. The intermetallic compound crystallizes in the rhombohedral space group Rm with a=12.9704(4), c=12.9443(5) Å, V=1886.0(1) Å3, Z=3 and is isostructural to thermoelectric β-Zn4Sb3 and β-Cd4Sb3. However, in contrast to these last two compounds Cd13−xInySb10 is free from interstitial atoms and does not display any temperature polymorphism. The electrical resistivity of Cd13−xInySb10 is considerably higher than that of Zn4Sb3 and Cd4Sb3 although the temperature behavior remains that of a metal. The thermal conductivity of Cd13−xInySb10 is low, with room-temperature magnitudes around 0.8 W m−1 K−1, which is comparable to disordered or complex structured Cd4Sb3 and Zn4Sb3.

Place, publisher, year, edition, pages
2009. Vol. 15, no 27, 6704-6710 p.
Keyword [en]
antimony, cadmium, heterometallic complexes, indium, semiconductors, thermoelectrics
National Category
Inorganic Chemistry
Research subject
Inorganic Chemistry
URN: urn:nbn:se:su:diva-36345DOI: 10.1002/chem.200802695OAI: diva2:289282
Available from: 2010-01-24 Created: 2010-01-24 Last updated: 2011-05-10Bibliographically approved

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Inorganic ChemistryDepartment of Physical, Inorganic and Structural Chemistry
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Inorganic Chemistry

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