| 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 |
|
| Cite this article: |
|
REN Guo-Zhong, JIA Xiao-Peng, ZHU Pin-Wen et al 2005 Chin. Phys. Lett. 22 236-238 |
|
|
|
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)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
