Cu2ZnGeSe4 Nanocrystals: Synthesis and Thermoelectric Properties

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• 作者：Maria Ib谩帽ez ; Reza Zamani ; Aaron LaLonde ; Doris Cadavid ; Wenhua Li ; Alexey Shavel ; Jordi Arbiol ; Joan Ramon Morante ; St茅phane Gorsse ; G. Jeffrey Snyder ; Andreu Cabot
• 刊名：The Journal of the American Chemical Society
• 出版年：2012
• 出版时间：March 7, 2012
• 年：2012
• 卷：134
• 期：9
• 页码：4060-4063
• 全文大小：381K
• 年卷期：v.134,no.9(March 7, 2012)
• ISSN：1520-5126

文摘

A synthetic route for producing Cu₂ZnGeSe₄ nanocrystals with narrow size distributions and controlled composition is presented. These nanocrystals were used to produce densely packed nanomaterials by hot-pressing. From the characterization of the thermoelectric properties of these nanomaterials, Cu₂ZnGeSe₄ is demonstrated to show excellent thermoelectric properties. A very preliminary adjustment of the nanocrystal composition has already resulted in a figure of merit of up to 0.55 at 450 掳C.