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Thermoelectric properties of Li-doped Cu0.95-xM0.05LixO (M=Mn, Ni, Zn)

Published online by Cambridge University Press:  07 December 2012

N. Yoshida ,
T. Naito  and
H. Fujishiro
N. Yoshida
Affiliation:
Faculty of Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan.
T. Naito
Affiliation:
Faculty of Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan.
H. Fujishiro*
Affiliation:
Faculty of Engineering, Iwate University, 4-3-5 Ueda, Morioka 020-8551, Japan.
*
(* corresponding author: fujishiro@iwate-u.ac.jp)
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Abstract

Thermoelectric properties of the Li-doped Cu0.95-xM0.05LixO (M=divalent metal ion; Mn, Ni, Zn) were investigated at the temperature up to 1273 K. In the doped divalent metal ions, Zn2+ ion was the most effective to reduce the thermal conductivity, and the Ni2+ substitution was preferable to decrease the electrical resistivity. For the Cu0.95-xNi0.05LixO sample at x=0.03, the maxima of the dimensionless thermoelectric figure of merit ZT and the power factor P at 1246 K were 4.2×10-2 and 1.6 ×10-4 W/K2m, respectively. The enhancement of the thermoelectric properties of the Li-doped Cu0.95-xM0.05LixO system was discussed.

Keywords

thermoelectricitythermal conductivityelectrical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1490: Symposium B – Thermoelectric Materials Research and Device Development for Power Conversion and Refrigeration , 2013 , pp. 69 - 73
Copyright
Copyright © Materials Research Society 2012 

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References

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