Journal article
Thermoelectric Properties of SnO2 Ceramics Doped with Sb and Zn
Hakodate National College of Technology1
Thermo Ceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Polycrystalline SnO2-based samples (Sn0.97−x Sb0.03Zn x O2, x = 0, 0.01, 0.03) were prepared by solid-state reactions. The thermoelectric properties of SnO2 doped with Sb and Zn were investigated from 300 K to 1100 K. X-ray diffraction (XRD) analysis revealed all XRD peaks of all the samples as identical to the rutile structure, except for the x = 0.03 sample, which had a small amount of Zn2SbO4 as a secondary phase.
We found that the power factor of the x = 0.03 sample was significantly improved due to the simultaneous increase in the electrical conductivity and the Seebeck coefficient. A power factor value of ∼2 × 10−4 W m−1 K−2 was obtained for the x = 0.03 sample at 1060 K, 126% higher than that for the undoped sample.
| Language: | English |
|---|---|
| Publisher: | Springer US |
| Year: | 2011 |
| Pages: | 674-677 |
| ISSN: | 1543186x and 03615235 |
| Types: | Journal article |
| DOI: | 10.1007/s11664-010-1506-8 |
| ORCIDs: | Van Nong, Ngo and Pryds, Nini |
