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SnSe是一种很有发展潜力的块体热电材料,但还存在一个关键问题亟待解决:SnSe材料在300—773K温度范围内热点优值ZT很低,这一点严重限制了SnSe在这一重要温度区间的使用。针对该问题,北京航空航天大学赵立东教授和合作者们利用SnSe的多带特点,采用重掺杂移动费米能级成功调控了SnSe的导电性和温差电动势,从而在中低温区使得其热电性能得到大幅提升。其内
SnSe is a promising bulk thermoelectric material, but there is a key problem to be solved: SnSe material in the temperature range of 300-773K ZT low value of the hot spot is very low, which severely limits the SnSe at this important temperature The use of the interval. In response to this problem, Professor Zhao Lidong and his collaborators at Beijing University of Aeronautics and Astronautics, using the multi-band feature of SnSe, successfully controlled the conductivity and temperature difference electromotive force of SnSe by using highly-doped mobile Fermi level to make their thermoelectric properties Get a substantial increase. Its inside