胶体合成 Cu2CdSnSe4 纳米晶体及热压以提高热电优值。
Colloidal synthesis of Cu2CdSnSe4 nanocrystals and hot-pressing to enhance the thermoelectric figure-of-merit.
机构信息
Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China.
出版信息
J Am Chem Soc. 2011 Oct 12;133(40):15910-3. doi: 10.1021/ja207159j. Epub 2011 Sep 16.
We report a solution-based synthesis of monodispersed Cu(2)CdSnSe(4) nanocrystals and a study on the thermoelectric properties of these wide-band-gap dense materials compacted from nanocrystals for the first time. With the help of copper dopants and selenium vacancies generated during wet-chemistry synthesis, a large increment in the power factor is observed, and the dimensionless figure-of-merit ZT reaches a peak value of 0.65 at 450 °C.
我们报告了一种基于溶液的方法合成单分散的 Cu2CdSnSe4 纳米晶体，并首次研究了由这些宽禁带致密纳米晶体压制成的材料的热电性能。在湿法化学合成过程中铜掺杂剂和硒空位的帮助下，观察到功率因子的大幅增加，无量纲品质因数 ZT 在 450°C 时达到 0.65 的峰值。
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