Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites

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

doi:10.1002/pssa.201532589

Title: Neutron diffraction and thermoelectric properties of indium filled In _x Co ₄ Sb ₁₂ ( x=0.05, 0.2) and indium cerium filled Ce _0.05 In _0.1 Co ₄ Sb ₁₂ skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites

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Abstract

The thermoelectric properties on polycrystalline single (In) and double filled (Ce, In) skutterudites are characterized between 300 and 700 K. Powder neutron diffraction measurements of the skutterudite compositions In_xCo₄Sb₁₂ (x= 0.05, 0.2) and Ce_0.05In_0.1Co₄Sb₁₂ 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. Our 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 skutterudite sample. The double-filled skutterudite 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 in our experiment. Finally, we obtained a significantly higher Einstein temperature for the double-filled skutterudite 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.

Authors:

Sesselmann, Andreas ^[1]; Klobes, Benedikt ^[2]; Dasgupta, Titas ^[3]; Gourdon, Olivier ^[4]; Hermann, Raphael ^[5]; Mueller, Eckhard ^[6]

German Aerospace Center (DLR), Koln (Germany)
Julich Center for Neutron Science JCNS (Germany). Peter Grunberg Inst. PGI
Indian Inst. of Technology (IIT), Mumbai (India)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Julich Center for Neutron Science JCNS (Germany). Peter Grunberg Inst. PGI; Univ. of Liege, (Belgium); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
German Aerospace Center (DLR), Koln (Germany); Justus Liebig Univ., Giessen (Germany)

Publication Date:: Fri Sep 25 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1261323

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Physica Status Solidi. A, Applications and Materials Science

Additional Journal Information:: Journal Volume: 213; Journal Issue: 3; Journal ID: ISSN 1862-6300

Publisher:: Wiley

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; neutron diffraction; Sb deficiency; skutterudites; thermoelectrics

Citation Formats


                    Sesselmann, Andreas, Klobes, Benedikt, Dasgupta, Titas, Gourdon, Olivier, Hermann, Raphael, and Mueller, Eckhard. Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites.  United States: N. p., 2015. 
Web.  doi:10.1002/pssa.201532589.

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                    Sesselmann, Andreas, Klobes, Benedikt, Dasgupta, Titas, Gourdon, Olivier, Hermann, Raphael, & Mueller, Eckhard. Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites.  United States.  https://doi.org/10.1002/pssa.201532589

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                    Sesselmann, Andreas, Klobes, Benedikt, Dasgupta, Titas, Gourdon, Olivier, Hermann, Raphael, and Mueller, Eckhard. Fri .  
"Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites".  United States.  https://doi.org/10.1002/pssa.201532589.  https://www.osti.gov/servlets/purl/1261323.

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@article{osti_1261323,

  title        = {Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites},

  author       = {Sesselmann, Andreas and Klobes, Benedikt and Dasgupta, Titas and Gourdon, Olivier and Hermann, Raphael and Mueller, Eckhard},

  abstractNote = {The thermoelectric properties on polycrystalline single (In) and double filled (Ce, In) skutterudites are characterized between 300 and 700 K. Powder neutron diffraction measurements of the skutterudite compositions InxCo4Sb12 (x= 0.05, 0.2) and Ce0.05In0.1Co4Sb12 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. Our 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 skutterudite sample. The double-filled skutterudite 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 in our experiment. Finally, we obtained a significantly higher Einstein temperature for the double-filled skutterudite 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.},

  doi          = {10.1002/pssa.201532589},

  journal      = {Physica Status Solidi. A, Applications and Materials Science},

  number       = 3,

  volume       = 213,

  place        = {United States},

  year         = {Fri Sep 25 00:00:00 EDT 2015},

  month        = {Fri Sep 25 00:00:00 EDT 2015}

}

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Title: Neutron diffraction and thermoelectric properties of indium filled In x Co 4 Sb 12 ( x=0.05, 0.2) and indium cerium filled Ce 0.05 In 0.1 Co 4 Sb 12 skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites

Abstract

Citation Formats

Title: Neutron diffraction and thermoelectric properties of indium filled In _x Co ₄ Sb ₁₂ ( x=0.05, 0.2) and indium cerium filled Ce _0.05 In _0.1 Co ₄ Sb ₁₂ skutterudites: Neutron diffraction and thermoelectric properties of In/Ce skutterudites