Article
Low temperature thermoelectric properties of Ni doped n-type filled skutterudites Ba0.3Co4Sb12 .
International Conference on Thermoelectrics, ICT, Proceedings.
(2001)
Abstract
n-type Ba filled skutterudites doped with Ni, Ba0.3Ni xCo4-xSb12 with 0⩽x⩽0.2, have been synthesized and the Seebeck coefficient, thermal conductivity, electrical resistivity and Hall coefficient have been measured. ZT of 1.2 has been achieved at 800 K with x=0.05. The thermal conductivity data are fitted and the rattling effect of the Ba atoms is identified through a resonance scattering term. The Hall mobility is studied and a mixed scattering mechanism of acoustic phonons and ionized impurities based on a single, rigid band picture is presented. The role of Ni atoms in enhancing the thermoelectric performance is discussed
Disciplines
Publication Date
2001
Publisher Statement
DOI: 10.1109/ICT.2001.979824
Citation Information
W. Chen, Jeffrey S. Dyck, C. Uher, L. D. Chen, et al.. "Low temperature thermoelectric properties of Ni doped n-type filled skutterudites Ba0.3Co4Sb12 ." International Conference on Thermoelectrics, ICT, Proceedings. (2001) Available at: http://works.bepress.com/jeffrey_dyck/21/