Thermoelectric Properties of AgSbTe2-Sb2Te3 Prepared by High Pressure Synthesis

SU Tai-Chao; ZHANG Shu-Guang; LI Xiao-Lei; MA Hong-An; LI Shang-Sheng; JIA Xiao-Peng; 

doi:10.11858/gywlxb.2011.04.005

Volume 25 Issue 4

Apr 2015

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Chinese Journal of High Pressure Physics > 2011 > 25(4): 317-320 .

YANG Mei-Xia, LIU Fu-Sheng, SUN Yu-Huai, ZHANG Dai-Yu. Contribution of Lattice Vibration and Hot Electron to the Shock Compression Behavior of Porous Metal[J]. Chinese Journal of High Pressure Physics, 2005, 19(4): 348-352 . doi: 10.11858/gywlxb.2005.04.011

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SU Tai-Chao, ZHANG Shu-Guang, LI Xiao-Lei, MA Hong-An, LI Shang-Sheng, JIA Xiao-Peng, . Thermoelectric Properties of AgSbTe2-Sb2Te3 Prepared by High Pressure Synthesis[J]. Chinese Journal of High Pressure Physics, 2011, 25(4): 317-320 . doi: 10.11858/gywlxb.2011.04.005

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Thermoelectric Properties of AgSbTe2-Sb2Te3 Prepared by High Pressure Synthesis

doi: 10.11858/gywlxb.2011.04.005

1.
Institute of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China;
2.
Department of Mathematics, Jiaozuo Teachers College, Jiaozuo 454000, China;
3.
National Laboratory of Superhard Materials, Jinlin University, Changchun 130012, China

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Corresponding author: JIA Xiao-Peng
Received Date: 08 Jun 2010
Rev Recd Date: 09 Sep 2010
Issue Publish Date: 15 Aug 2011

Abstract

Abstract

The p-type thermoelectric materials of AgSbTe2 alloyed with Sb2Te3 ((AgSbTe2)1-x(Sb2Te3)x, 0x0.3) are prepared by high pressure method. The structure and thermoelectric properties of (AgSbTe2)1-x(Sb2Te3)x are studied at room temperature. Experimental results indicate that the samples are near single phase AgSbTe2 when x0.1. The electrical resistivity of the sample decreases dramatically with the increasing of synthetic pressure and Sb2Te3 content x. The Seebeck coefficient increases. The high pressure combining with Sb2Te3 doping can improve the power factor of AgSbTe2 effectively. Moreover, the enhanced power factor reaches 10.4 W/(cmK2), and the high figure of merit reaches 0.466 for (AgSbTe2)0.9(Sb2Te3)0.1 prepared at 2.0 GPa, which is close to that of Bi2Te3.
- high pressure,
- thermoelectric material,
- AgSbTe2,
- electrical resistivity,
- power factor

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References(11)

References

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Thermoelectric Properties of AgSbTe2-Sb2Te3 Prepared by High Pressure Synthesis

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