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DONG Nan, JIA Xiao-Peng, SU Tai-Chao, JIANG Yi-Ping, GUO Jian-Gang, DENG Le, MA Hong-An. Synthesis and Electric Transport Properties of Na-Filled CoSb3 at High-Pressure[J]. Chinese Journal of High Pressure Physics, 2009, 23(1): 42-45 . doi: 10.11858/gywlxb.2009.01.007
Citation: DONG Nan, JIA Xiao-Peng, SU Tai-Chao, JIANG Yi-Ping, GUO Jian-Gang, DENG Le, MA Hong-An. Synthesis and Electric Transport Properties of Na-Filled CoSb3 at High-Pressure[J]. Chinese Journal of High Pressure Physics, 2009, 23(1): 42-45 . doi: 10.11858/gywlxb.2009.01.007

Synthesis and Electric Transport Properties of Na-Filled CoSb3 at High-Pressure

doi: 10.11858/gywlxb.2009.01.007
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  • Corresponding author: MA Hong-An
  • Received Date: 01 Mar 2008
  • Rev Recd Date: 18 Jun 2008
  • Publish Date: 15 Feb 2009
  • Skutterudite compounds Na-filled CoSb3 were successfully synthesized at high-pressure using powders of Co, NaN3 and Sb as starting materials. The X-ray diffraction (XRD) results indicate that all samples have the single phase CoSb3. No secondary phase is found when Na content wNa80%. The composition-dependent electric transport properties of Na-filled CoSb3 have been studied at room temperature. The Seebeck coefficient decreases with increasing Na content. The electrical resistivity decreases with increasing Na content. In this study, the obtained maximum power factor reaches 8.72 Wcm-1K-2 when Na content is 40%.

     

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