Abstract
Three Ta-doped strontium titanates were prepared as potential candidates for n-type thermoelectric oxides. The purity of the polycrystalline samples of SrTi 1-x Ta x O 3 (x = 0.05 to 0.14) were characterized by means of powder x-ray diffraction and electron probe micro analysis (EPMA). We present the results of Seebeck coefficient, electrical conductivity, and thermal conductivity measurements performed at high temperatures.
Original language | English |
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Pages (from-to) | 1002-1007 |
Number of pages | 6 |
Journal | Journal of Electronic Materials |
Volume | 38 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2009 |
Funding
Financial support from Defence Research and Development Canada is greatly appreciated. The work is furthermore supported by the GM and by DOE under corporate agreement DE-FC26-04NT42278, and by the Waste Heat Recovery Program via corporate agreement DE-FC26-04NT42278 at Oak Ridge National Laboratory managed by UT-Battelle LLC, for the Department of Energy under contract DE-AC05000OR22725. Elemental analysis was provided by Richard Waldo.
Keywords
- Electron probe micro analysis
- Oxides
- Thermoelectric materials
- Transport properties