Thermoelectric properties of chemically substituted skutterudites Yb{sub y}Co{sub 4}Sn{sub x}Sb{sub 12-x}
- Department of Physics and Institute for Pure and Applied Physical Sciences, University of California, San Diego, La Jolla, California 92093 (United States)
- Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
We report the results of a study of thermoelectric properties of chemically substituted quasiternary materials related to the recently discovered filled skutterudite compound YbFe{sub 4}Sb{sub 12}. The study explored partial filling at the Yb site as well as chemical doping with Sn at the Sb site in an attempt to optimize the thermoelectric figure of merit ZT in the system Yb{sub y}Co{sub 4}Sn{sub x}Sb{sub 12-x}. Our measurements of these physical quantities from room temperature down to T=10 K indicate that, in our study, only the alloy Yb{sub 0.44}Co{sub 4}Sb{sub 12} possessed thermoelectric properties that are improved over the parent compound YbFe{sub 4}Sb{sub 12}, attaining a value of ZT=0.1 at T=300 K. (c) 2000 American Institute of Physics.
- OSTI ID:
- 20217175
- Journal Information:
- Journal of Applied Physics, Vol. 88, Issue 4; Other Information: PBD: 15 Aug 2000; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrical and thermal properties of Fe substituted double-filled Ba{sub x}Yb{sub y}Fe{sub z}Co{sub 4-z}Sb{sub 12} skutterudites
High thermoelectric performance of In, Yb, Ce multiple filled CoSb{sub 3} based skutterudite compounds