热电材料PbTe1-xSex的高压制备及电学性能研究

宿太超; 朱红玉; 李洪涛; 李尚升; 李小雷; 马红安; 贾晓鹏

doi:10.11858/gywlxb.2011.03.009

热电材料PbTe1-xSex的高压制备及电学性能研究

doi: 10.11858/gywlxb.2011.03.009

1.
河南理工大学材料科学与工程学院，河南焦作 454003；
2.
河南理工大学物理化学学院，河南焦作 454003；
3.
上海出入境检验检疫局，上海 200135；
4.
吉林大学超硬材料国家重点实验室，吉林长春 130012

详细信息

通讯作者:
贾晓鹏

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出版历程
- 收稿日期: 2010-03-13
- 修回日期: 2010-04-19
- 发布日期: 2011-06-15

Electrical Properties of Thermoelectric Material of PbTe1-xSex Prepared by High Pressure Synthesis

1.
Institute of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China;
2.
Institute of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454003, China;
3.
Shanghai Entry-Exit Inspection & Quarantine Bureau, Shanghai 200135, China;
4.
National Laboratory of Superhard Materials, Jinlin University, Changchun 130012, China

More Information

Corresponding author: JIA Xiao-Peng

摘要

摘要: 利用高温高压技术，制备了热电材料PbTe和PbSe的固溶体合金PbTe1-xSex，在室温下对其结构及电学性质进行了研究。X射线衍射（XRD）测试结果表明：PbTe1-xSex具有NaCl结构；晶格常数随着Se含量（x）的增加而减小；PbTe1-xSex的电阻率和Seebeck系数的绝对值随x的增大而减小；功率因子随x的增大先增大而后减小，当x=0.1时功率因子最高，达到21.7 W/(cmK2)，比相同条件下制备的PbTe高20%。
- 高压 /
- 热电材料 /
- PbTe1-xSex
Abstract: The n-type thermoelectric materials of PbTe alloyed with PbSe (PbTe1-xSex) were prepared by high-pressure and high-temperature method. The structure and electrical properties of PbTe1-xSex were studied at room temperature. X-ray diffraction results indicated that the PbTe1-xSex sample exhibited the NaCl crystal structure. As the increasing of Se content x, the lattice parameter, Seebeck coefficient and resistivity for PbTe1-xSex all decrease, and the power factor increases first and then decreases. The maximum power factor of 21.7 W/(cmK2) was obtained at the x=0.1, which is about 20% higher than that of PbTe.
- high pressure /
- thermoelectric material /
- PbTe1-xSex

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参考文献(9)

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