Elevation of the Power Factor of Co4Sb12 Skutterudite with Sm-Doping in High-Pressure High-Temperature Synthesis
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Abstract
A thermoelectric material SmxCo4Sb12 (0compounds exhibits n-type conduction. The absolute value of the Seebeck coefficient decreases with increasing Sm fraction. The resistivity increases with samarium content x from 0.1 to 0.2, but decreases dramatically when x changes from 0.2 to 1.0. The maximum power factor reaches 13.1 μW.cm-1K-2 at x=1.0, which is larger than the data previously reported for the La-doped CoSb3 prepared at room pressure.
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JIANG Yi-Ping, JIA Xiao-Peng, GUO Wei, XU Hui-Wen, DENG Le, ZHENG Shi-Zhao, MA Hong-An. Elevation of the Power Factor of Co4Sb12 Skutterudite with Sm-Doping in High-Pressure High-Temperature Synthesis[J]. Chin. Phys. Lett., 2010, 27(6): 068102. DOI: 10.1088/0256-307X/27/6/068102
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JIANG Yi-Ping, JIA Xiao-Peng, GUO Wei, XU Hui-Wen, DENG Le, ZHENG Shi-Zhao, MA Hong-An. Elevation of the Power Factor of Co4Sb12 Skutterudite with Sm-Doping in High-Pressure High-Temperature Synthesis[J]. Chin. Phys. Lett., 2010, 27(6): 068102. DOI: 10.1088/0256-307X/27/6/068102
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JIANG Yi-Ping, JIA Xiao-Peng, GUO Wei, XU Hui-Wen, DENG Le, ZHENG Shi-Zhao, MA Hong-An. Elevation of the Power Factor of Co4Sb12 Skutterudite with Sm-Doping in High-Pressure High-Temperature Synthesis[J]. Chin. Phys. Lett., 2010, 27(6): 068102. DOI: 10.1088/0256-307X/27/6/068102
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JIANG Yi-Ping, JIA Xiao-Peng, GUO Wei, XU Hui-Wen, DENG Le, ZHENG Shi-Zhao, MA Hong-An. Elevation of the Power Factor of Co4Sb12 Skutterudite with Sm-Doping in High-Pressure High-Temperature Synthesis[J]. Chin. Phys. Lett., 2010, 27(6): 068102. DOI: 10.1088/0256-307X/27/6/068102
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