Title :
Thermoelectric Properties of NdxCo4-yNiySb12 Skutterudite Compounds
Author :
Ros, V. Da ; Lenoir, B. ; Dauscher, A. ; Candolfi, C. ; Bellouard, C. ; Stiewe, C. ; Müller, E. ; Hejtmanek, J.
Author_Institution :
Lab. de Phys. des Materiaux, Ecole Nationale Superieure des Mines de Nancy
Abstract :
In an effort to further understand the influence of Nd on the thermoelectric properties of the binary compound CoSb3 and try to optimize them through doping, we prepared and investigated NdxCo4-yNiySb12 compounds. The samples have been prepared by a conventional metallurgical route. Structural analysis has been carried out by X-ray diffraction. The chemical composition and micro-homogeneity have been checked by electron probe microanalysis. Measurements of the electrical resistivity, thermoelectric power, thermal conductivity and Hall coefficient have been performed. The influence of both Nd and Ni on the thermoelectric properties of the binary parent CoSb3 is presented and discussed. Nd plays the role of a dopant (n-type) and the presence of Ni contributes to decrease significantly the electrical resistivity
Keywords :
Hall effect; X-ray diffraction; cobalt compounds; doping; electrical resistivity; electron probe analysis; narrow band gap semiconductors; neodymium compounds; nickel compounds; powder metallurgy; thermal conductivity; thermoelectric power; Hall coefficient; NdxCo4-yNiySb12; X-ray diffraction; chemical composition; doping; electrical resistivity; electron probe microanalysis; metallurgy; microhomogeneity; skutterudite compound; structural analysis; thermal conductivity; thermoelectric power; thermoelectric property; Chemicals; Conductivity measurement; Doping; Electric resistance; Electrons; Neodymium; Probes; Thermal conductivity; Thermoelectricity; X-ray diffraction;
Conference_Titel :
Thermoelectrics, 2006. ICT '06. 25th International Conference on
Conference_Location :
Vienna
Print_ISBN :
1-4244-0811-3
Electronic_ISBN :
1094-2734
DOI :
10.1109/ICT.2006.331322
