Effect of HPHT processing on the structure, and thermoelectric properties of Co4Sb12 co-doped with Te and Sn
| Autor: | Le Deng, Xiaopeng Jia, Hongan Ma, Pin Lv, Xin Guo, Yuewen Zhang, Hairui Sun, Binwu Liu, Bing Sun |
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| Rok vydání: | 2015 |
| Předmět: |
Diffraction
Materials science Renewable Energy Sustainability and the Environment Doping Analytical chemistry Mineralogy General Chemistry Thermoelectric materials Thermal conductivity Electrical resistivity and conductivity Seebeck coefficient Thermoelectric effect General Materials Science Crystallite |
| Zdroj: | Journal of Materials Chemistry A. 3:4637-4641 |
| ISSN: | 2050-7496 2050-7488 |
| Popis: | Te–Sn co-doped Co4Sb12 bulk polycrystalline materials Co4Sb11.7−xTexSn0.3 have been prepared using a high pressure and high temperature method and then characterized using X-ray diffraction. The aim was to use the disorder of the lattice orientation generated by both high pressure and doping with Te and Sn to reduce the thermal conductivity. The thermoelectric properties were measured at room temperature. As expected, as the synthesis pressure increased, the Seebeck coefficient and electrical resistivity increased, but the thermal conductivity decreased greatly. A minimum thermal conductivity of 2.41 W m−1 K−1 was obtained at room temperature for Co4Sb11Te0.7Sn0.3 synthesized at 3 GPa. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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