Abstract
Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.
| Original language | English |
|---|---|
| Title of host publication | Proceedings ICT'06 - 25th International Conference on Thermoelectrics |
| Pages | 103-106 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2006 Dec 1 |
| Event | ICT'06 - 25th International Conference on Thermoelectrics - Vienna, Austria Duration: 2006 Aug 6 → 2006 Aug 10 |
Publication series
| Name | International Conference on Thermoelectrics, ICT, Proceedings |
|---|
Other
| Other | ICT'06 - 25th International Conference on Thermoelectrics |
|---|---|
| Country | Austria |
| City | Vienna |
| Period | 06/8/6 → 06/8/10 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
}
Effect of the Yb substitutions on the thermoelectric properties of CaMnO3. / Flahaut, D.; Funahashi, R.; Lee, K.; Ohta, H.; Koumoto, K.
Proceedings ICT'06 - 25th International Conference on Thermoelectrics. 2006. p. 103-106 4133247 (International Conference on Thermoelectrics, ICT, Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Effect of the Yb substitutions on the thermoelectric properties of CaMnO3
AU - Flahaut, D.
AU - Funahashi, R.
AU - Lee, K.
AU - Ohta, H.
AU - Koumoto, K.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.
AB - Ca1-xYbxMnO3 (x = 0-0.5) samples were prepared via solid state reaction in air. Electrical and thermoelectric properties have been investigated up to 1000K. The measurements reveal that the resistivity values are strongly affected by the charge carrier content and the octahedral distortion. The lowest p reaches 3mΩ.cm for x=0.15. Whereas the Seebeck coefficient depends only on the charge carrier concentration, the thermal conductivity of Ca1-xYbxMnO3 is mainly governed by the mass difference between the Yb and Ca cations. The best ZT value, ZT=0.2, is obtained for x=0.05 at 1000K and demonstrates the good potentialities of these oxides as high temperature thermoelectric material.
UR - http://www.scopus.com/inward/record.url?scp=46149096277&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=46149096277&partnerID=8YFLogxK
U2 - 10.1109/ICT.2006.331291
DO - 10.1109/ICT.2006.331291
M3 - Conference contribution
AN - SCOPUS:46149096277
SN - 1424408105
SN - 9781424408108
T3 - International Conference on Thermoelectrics, ICT, Proceedings
SP - 103
EP - 106
BT - Proceedings ICT'06 - 25th International Conference on Thermoelectrics
ER -