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US 2015/0020862 A1Published application
Oxide Nanoparticle-Dispersed, Chalcogenide-Based, and Phase-Separated Composite Thermoelectric Material
AssigneeSK Innovation Co., Ltd.
InventorsHyeung Jin Lee, Jong Soo Rhyee
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Abstract
Provided is a thermoelectric material containing: a matrix containing a Group 13 element of chalcogenide; and oxide nanoparticles dispersed into the matrix to have excellent thermal stability, wherein the oxide nanoparticle forms a coherent interphase interface with the Group 13 element of the chalcogenide-based matrix and is elongated in a specific direction, such that thermal conductivity may be effectively decreased with a trace amount of the oxide nanoparticle to minimize deterioration of electric conductivity.
Claims8
A thermoelectric material comprising:
- a matrix containing a Group 13 element of chalcogenide according to the following Chemical Formula 1;
- and
- oxide nanoparticles dispersed into the matrix:
- (A1−xA′x)1±δ1(B1−yB′y)1±δ2 (Chemical Formula 1)
- in the Chemical Formula 1, A is a Group 13 element, A′ is an element selected from Group 14, B and B′ are different from each other, B is S, Se or Te, B′ is an element selected from Group 15 and Group 16, x is a real number satisfying 0≦x<0.5, y is a real number satisfying 0≦y<0.5, and δ1 and δ2 are each independently real numbers satisfying 0≦δ<0.1.
2 more elements
Dependencies are inferred from the claim text.