Abstract
Ca3Co4-xMnxO9+δ (x = 0.00, 0.05, 0.10, and 0.15) sample were prepared by conventional solid state synthesis. The thermoelectric properties were measured at 15 K-300 K. The XRD results revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers were holes over the entire temperature range. Both the electric resistivity and the thermopower increased with increasing Mn content. Ca3Co 3.95Mn0.05O9+δ had the highest power factor of 3.40 μW cm-1 K-2 at 163 K, representing an improvement of about 187 % compared to undoped Ca3Co 4O9+δ. These results suggested that there is scope for improving the thermoelectric characteristics via partial substitution of Mn for Co.
| Original language | English |
|---|---|
| Pages (from-to) | 129-133 |
| Number of pages | 5 |
| Journal | Journal of Electroceramics |
| Volume | 31 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2013 Oct 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Mechanics of Materials
- Electrical and Electronic Engineering
- Materials Chemistry
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Thermoelectric properties of Ca3Co4-xMn xO9+δ with x = 0.00, 0.05, 0.10, and 0.15. / Bhaskar, Ankam; Liu, Chia-Jyi; Huang, Li Chen.
In: Journal of Electroceramics, Vol. 31, No. 1-2, 01.10.2013, p. 129-133.Research output: Contribution to journal › Article
TY - JOUR
T1 - Thermoelectric properties of Ca3Co4-xMn xO9+δ with x = 0.00, 0.05, 0.10, and 0.15
AU - Bhaskar, Ankam
AU - Liu, Chia-Jyi
AU - Huang, Li Chen
PY - 2013/10/1
Y1 - 2013/10/1
N2 - Ca3Co4-xMnxO9+δ (x = 0.00, 0.05, 0.10, and 0.15) sample were prepared by conventional solid state synthesis. The thermoelectric properties were measured at 15 K-300 K. The XRD results revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers were holes over the entire temperature range. Both the electric resistivity and the thermopower increased with increasing Mn content. Ca3Co 3.95Mn0.05O9+δ had the highest power factor of 3.40 μW cm-1 K-2 at 163 K, representing an improvement of about 187 % compared to undoped Ca3Co 4O9+δ. These results suggested that there is scope for improving the thermoelectric characteristics via partial substitution of Mn for Co.
AB - Ca3Co4-xMnxO9+δ (x = 0.00, 0.05, 0.10, and 0.15) sample were prepared by conventional solid state synthesis. The thermoelectric properties were measured at 15 K-300 K. The XRD results revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers were holes over the entire temperature range. Both the electric resistivity and the thermopower increased with increasing Mn content. Ca3Co 3.95Mn0.05O9+δ had the highest power factor of 3.40 μW cm-1 K-2 at 163 K, representing an improvement of about 187 % compared to undoped Ca3Co 4O9+δ. These results suggested that there is scope for improving the thermoelectric characteristics via partial substitution of Mn for Co.
UR - http://www.scopus.com/inward/record.url?scp=84886086843&partnerID=8YFLogxK
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U2 - 10.1007/s10832-013-9825-9
DO - 10.1007/s10832-013-9825-9
M3 - Article
AN - SCOPUS:84886086843
VL - 31
SP - 129
EP - 133
JO - Journal of Electroceramics
JF - Journal of Electroceramics
SN - 1385-3449
IS - 1-2
ER -