Abstract
Ca3-xEuxCo4O9+δ (x=0.00, 0.05 and 0.10) samples were prepared by conventional solid-state synthesis and their properties measured at 25-300 K. The x-ray diffraction (XRD) patterns revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers are holes over the entire temperature range. The total thermal conductivity values decreased monotonically with increasing Eu3+ content. Ca2.95Eu 0.05Co4O9+δ had the highest dimensionless figure of merit of 0.038 at 300 K, representing an improvement of about 52% compared to undoped Ca3Co4O9+δ.
| Original language | English |
|---|---|
| Pages (from-to) | 24-27 |
| Number of pages | 4 |
| Journal | Solid State Communications |
| Volume | 168 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
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Thermoelectric properties of Ca3-xEuxCo 4O9+δ (0≤x≤0.1). / Bhaskar, Ankam; Huang, Y. C.; Liu, Chia Jyi.
In: Solid State Communications, Vol. 168, 01.01.2013, p. 24-27.Research output: Contribution to journal › Article
TY - JOUR
T1 - Thermoelectric properties of Ca3-xEuxCo 4O9+δ (0≤x≤0.1)
AU - Bhaskar, Ankam
AU - Huang, Y. C.
AU - Liu, Chia Jyi
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Ca3-xEuxCo4O9+δ (x=0.00, 0.05 and 0.10) samples were prepared by conventional solid-state synthesis and their properties measured at 25-300 K. The x-ray diffraction (XRD) patterns revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers are holes over the entire temperature range. The total thermal conductivity values decreased monotonically with increasing Eu3+ content. Ca2.95Eu 0.05Co4O9+δ had the highest dimensionless figure of merit of 0.038 at 300 K, representing an improvement of about 52% compared to undoped Ca3Co4O9+δ.
AB - Ca3-xEuxCo4O9+δ (x=0.00, 0.05 and 0.10) samples were prepared by conventional solid-state synthesis and their properties measured at 25-300 K. The x-ray diffraction (XRD) patterns revealed that all the samples are single phase. The thermopower of all the samples was positive, indicating that the predominant carriers are holes over the entire temperature range. The total thermal conductivity values decreased monotonically with increasing Eu3+ content. Ca2.95Eu 0.05Co4O9+δ had the highest dimensionless figure of merit of 0.038 at 300 K, representing an improvement of about 52% compared to undoped Ca3Co4O9+δ.
UR - http://www.scopus.com/inward/record.url?scp=84885416616&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885416616&partnerID=8YFLogxK
U2 - 10.1016/j.ssc.2013.06.006
DO - 10.1016/j.ssc.2013.06.006
M3 - Article
AN - SCOPUS:84885416616
VL - 168
SP - 24
EP - 27
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
ER -