Colloidal Synthesis of Cu2CdSnSe4 Nanocrystals and Hot-Pressing to Enhance the Thermoelectric Figure-of-Merit

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• 作者：Feng-Jia Fan ; Bo Yu ; Yi-Xiu Wang ; Yan-Long Zhu ; Xiao-Jing Liu ; Shu-Hong Yu ; Zhifeng Ren
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：October 12, 2011
• 年：2011
• 卷：133
• 期：40
• 页码：15910-15913
• 全文大小：773K
• 年卷期：v.133,no.40(October 12, 2011)
• ISSN：1520-5126

文摘

We report a solution-based synthesis of monodispersed Cu₂CdSnSe₄ 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 掳C.