Journal article

Neutron diffraction and thermoelectric properties of indium filled InxCo4Sb12 (x=0.05, 0.2) and indium cerium filled Ce0.05In0.1Co4Sb12 skutterudites


Authors listSesselmann, Andreas; Klobes, Benedikt; Dasgupta, Titas; Gourdon, Olivier; Hermann, Raphael; Mueller, Eckhard

Publication year2016

Pages766-773

Journalphysica status solidi (a) – applications and materials science

Volume number213

Issue number3

ISSN1862-6300

eISSN1862-6319

Open access statusGreen

DOI Linkhttps://doi.org/10.1002/pssa.201532589

PublisherWiley


Abstract
The thermoelectric properties on polycrystalline single (In) and double filled (Ce, In) skuttemdites are characterized between 300 and 700 K. Powder neutron diffraction measurements of the skutterudite compositions In,Co4Sb12 (x = 0.05, 0.2) and Ce0.05In0.1Ca4Sb12 as a function of temperature (12-300 K) were carried out, which gives more insight into the structural data of single and double-filled skutterudites. Results show that due to the annealing treatment, a Sb deficiency is detectable and thus verifies defects at the Sb lattice site of the skutterudite. Furthermore, we show by electron microprobe analysis that a considerable amount of indium is lost during synthesis and post-processing for the single indium filled samples, but not for the double cerium and indium skuttenidite sample. In our experiments, the double-filled skuttenidite is superior to the single-filled skutterudite composition due to a higher charge carrier density, a comparable lattice thermal resistivity, and a higher density of states effective mass. Furthermore, we obtained a significantly higher Einstein temperature for the double-filled skuttenidite composition in comparison to the single-filled species, which reflects the high sensitivity due to filling of the void lattice position within the skutterudite crystal. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim



Citation Styles

Harvard Citation styleSesselmann, A., Klobes, B., Dasgupta, T., Gourdon, O., Hermann, R. and Mueller, E. (2016) Neutron diffraction and thermoelectric properties of indium filled InxCo4Sb12 (x=0.05, 0.2) and indium cerium filled Ce0.05In0.1Co4Sb12 skutterudites, physica status solidi (a) – applications and materials science, 213(3), pp. 766-773. https://doi.org/10.1002/pssa.201532589

APA Citation styleSesselmann, A., Klobes, B., Dasgupta, T., Gourdon, O., Hermann, R., & Mueller, E. (2016). Neutron diffraction and thermoelectric properties of indium filled InxCo4Sb12 (x=0.05, 0.2) and indium cerium filled Ce0.05In0.1Co4Sb12 skutterudites. physica status solidi (a) – applications and materials science. 213(3), 766-773. https://doi.org/10.1002/pssa.201532589



Keywords


neutron diffractionN-TYPE SKUTTERUDITESSb deficiencyskutterudites

Last updated on 2025-10-06 at 10:36