Enhanced mid-temperature thermoelectric performance of textured SnSe polycrystals made of solvothermally synthesized powders
| Autor: | Feiyu Kang, Bo Li, Zhen-Hua Ge, Jinfeng Dong, Yiwen Li, Jing-Feng Li, Fu Li, Jiaqing He, Hongda Du |
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| Rok vydání: | 2016 |
| Předmět: |
Range (particle radiation)
Materials science Doping Analytical chemistry 02 engineering and technology General Chemistry Atmospheric temperature range 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Thermal conductivity Electrical resistivity and conductivity Seebeck coefficient Thermoelectric effect Materials Chemistry 0210 nano-technology |
| Zdroj: | Journal of Materials Chemistry C. 4:2047-2055 |
| ISSN: | 2050-7534 2050-7526 |
| Popis: | This work revealed that the thermoelectric properties of textured SnSe polycrystals, which are made of solvothermally synthesized powders with a preferred orientation grown along the (400) plane, can be enhanced, especially in the range of mid-temperatures. The electrical conductivity for the sintered sample is greatly improved in the whole measured temperature range, attributed to the high carrier concentration and unique mobility change. This results in a large power factor combined with the moderate Seebeck coefficient, especially in the range of 300–650 K, which exceeds 5 μW cm−1 K−2 at 423 K and even larger than 6 μW cm−1 K−2 at 521 K. Benefiting from the enhanced electrical conductivity and the low total thermal conductivity ( |
| Databáze: | OpenAIRE |
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