Thermoelectric properties of RE 2− x M x CuO 4 oxide sintering bulks
La 2− x Sr x CuO 4 (LSCO) and Sm 2− x Ce x CuO 4 (SCCO) polycrystal bulks with x =0 to 0.10 were made by solid‐phase reaction method. From the X‐ray diffraction patterns, LSCO and SCCO were confirmed single phase. Seebeck coefficient, resistivity, and heat conductivity decreased with increasing amou...
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| Veröffentlicht in: | Electronics and communications in Japan 2008-12, Vol.91 (12), p.24-28 |
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| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | La
2−
x
Sr
x
CuO
4
(LSCO) and Sm
2−
x
Ce
x
CuO
4
(SCCO) polycrystal bulks with
x
=0 to 0.10 were made by solid‐phase reaction method. From the X‐ray diffraction patterns, LSCO and SCCO were confirmed single phase. Seebeck coefficient, resistivity, and heat conductivity decreased with increasing amount of Sr
2+
and Ce
2+
substitution. We estimated
ZT
from these values and found that the highest value of
ZT
=0.034 at 323 K was achieved in the LSCO with
x
=0.02. As a result, we conclude that LSCO and SCCO showed high thermoelectric properties around room temperature. We can expect
RE
2−
x
M
x
CuO
4
will be a very useful material for thermoelectric module operating at room temperature. © 2009 Wiley Periodicals, Inc. Electron Comm Jpn, 91(12): 24–28, 2008; Published online in Wiley InterScience (
www.interscience.wiley.com
). DOI 10.1002/ecj.10003 |
|---|---|
| ISSN: | 1942-9533 1942-9541 |
| DOI: | 10.1002/ecj.10003 |