Chin. Phys. Lett.  2005, Vol. 22 Issue (1): 236-238    DOI:
Original Articles |
In-Situ Measurement of Electrical Character of PbTe at High Pressure and High Temperature
REN Guo-Zhong1;JIA Xiao-Peng1,2;ZHU Pin-Wen1;ZANG Chuan-Yi1,2;MA Hong-An1,2;WANG Xian-Cheng1
1National Laboratory of Superhard Material, Jilin University, Changchun 130012 2Jiaozuo Institute of Technology, Jiaozuo 454000
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REN Guo-Zhong, JIA Xiao-Peng, ZHU Pin-Wen et al  2005 Chin. Phys. Lett. 22 236-238
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Abstract There is a widespread interest in lead telluride (PbTe) as a good thermoelectric material. We report the temperature dependence of thermopower S(T) and resistance R(T) for PbTe at the different pressures of from 1.8GPa to 5GPa obtained by using the cubic anvil high pressure apparatus. With increasing pressure, R(T) and S(T) decrease. The effect of pressure on R(T) is larger than that on S(T). The power factor that is determined by thermopower and resistivity increases with increasing pressure. This method is an efficient tool for synthesizing good thermoelectric materials at high pressure and high temperature.
Keywords: 81.05.Hd      84.60.Rb      91.60.Gf     
Published: 01 January 2005
PACS:  81.05.Hd (Other semiconductors)  
  84.60.Rb (Thermoelectric, electrogasdynamic and other direct energy conversion)  
  91.60.Gf (High-pressure behavior)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I1/0236
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REN Guo-Zhong
JIA Xiao-Peng
ZHU Pin-Wen
ZANG Chuan-Yi
MA Hong-An
WANG Xian-Cheng
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