Conduction type control and power factor enhancement of the thermoelectric material Al2Fe3Si3
Conduction type control and power factor enhancement of the thermoelectric material Al2Fe3Si3
复制标题
热电材料Al2Fe3Si3的传导类型控制和功率因数提高
DOI:
10.1016/j.jpcs.2018.03.003
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发表时间:
2018
影响因子:
4
通讯作者:
Y. Shinohara
中科院分区:
文献类型:
--
作者:
Y. Takagiwa;Y. Isoda;M. Goto;Y. Shinohara
Control of the conduction type of a target thermoelectric material is necessary to fabricate power generation modules. When developing thermoelectric modules for practical usage, the cost and toxicity of constituent p- and n-type thermoelectric materials should be lowered and minimized. The Al2Fe3Si3intermetallic compound with a relatively low thermal conductivity of ∼6 W/m-K at 300 K is promising for use in low-cost and non-toxic thermoelectric devices. Al2Fe3Si3possesses a wide composition range of Al and Si concentration with a constant Fe content. Fine tuning of the Al/Si content of Al2Fe3Si3allowed its conduction type to be controlled and power factor to be enhanced. We found that Al2Fe3Si3displayed thermoelectric behavior in the relatively low-temperature region below 500 K, which is attractive for its future practical usage. We produced Al2Fe3Si3materials with high power factors of 730 μW/mK2forn-type and 430 μW/mK2forp-type at 373 K, which might be useful in sensor applications at such a temperature.
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影响因子:
64.8
作者:
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通讯作者:
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影响因子:
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通讯作者:
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