微量Na元素掺杂对SnSe多晶材料热电性能的影响（英文）

发布时间：2018-06-08 14:06

本文选题：热电材料 + 多晶SnSe　；参考：《低温物理学报》2017年03期

【摘要】：熔炼方法制备微量掺杂多晶硒化锡NaxSn1-xSe(x=0.001-0.005)热电材料,并研究其热、电输运性质.研究结果表明:对硒化锡进行Na元素轻掺杂(x=0.003)时,掺杂样品的电导率有了两个数量级的提高,同时其热导率也有一定的降低;而且掺杂后的样品还拥有很高的Seebeck系数,Seebeck最大能达到300V/K左右.因此硒化锡掺钠多晶Na0.003Sn0.997Se的ZT值能达到1.2左右.
[Abstract]:The micro-doped polycrystalline tin selenide (NaxSn1-xSex) 0.001-0.005) thermoelectric material was prepared by melting method and its thermal and electrical transport properties were studied. The results showed that the conductivity of the doped samples was increased by two orders of magnitude, and the thermal conductivity of the doped samples was also decreased. The doped samples also have a high Seebeck coefficient and the maximum Seebeck can reach about 300V / K. Therefore, the ZT value of sodium tin selenide polycrystalline Na 0.003Sn0.997Se can reach about 1.2.
【作者单位】：中国科学院合肥物质科学研究院固体物理研究所;中国科学技术大学;
【基金】：Project supported by the Natural Science Foundation of China(Grant No.51672278,11674322and 11374306) AnHui Provincial Natural Science Foundation(Grant No.1608085MA17)
【分类号】：TB34

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