Rapid preparation method of bulk nanostructured Yb{sub 0.3}Co{sub 4}Sb{sub 12+y} compounds and their improved thermoelectric performance
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070 (China)
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)
A synthetic route was introduced to speed up the preparation of high performance nanostructured Yb{sub 0.3}Co{sub 4}Sb{sub 12+y} (y=0.3 and 0.6) compounds. Compared with the samples prepared by a traditional method, the processing time is reduced from the typical 10 days to less than 40 h, the Yb filling fraction limit increases, and the resulting thermoelectric transport properties are improved significantly. As a consequence, the dimensionless figure of merit of our bulk nanostructured Yb{sub 0.3}Co{sub 4}Sb{sub 12.3} reaches 1.3 at 800 K. The enhanced thermoelectric performance coupled with the dramatically reduced processing time will be of considerable significance to the commercial-scale production of skutterudite-based thermoelectric materials.
- OSTI ID:
- 21175865
- Journal Information:
- Applied Physics Letters, Vol. 93, Issue 25; Other Information: DOI: 10.1063/1.3054158; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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