Departament Electronica, Universitat de Barcelona, Barcelona 08028, Spain.
J Am Chem Soc. 2012 Mar 7;134(9):4060-3. doi: 10.1021/ja211952z. Epub 2012 Feb 22.
A synthetic route for producing Cu(2)ZnGeSe(4) 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, Cu(2)ZnGeSe(4) 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 °C.
提出了一种制备具有窄尺寸分布和可控组成的 Cu(2)ZnGeSe(4)纳米晶的合成路线。这些纳米晶通过热压被用来制备致密的纳米材料。通过对这些纳米材料的热电性能进行表征，证明了 Cu(2)ZnGeSe(4)具有优异的热电性能。对纳米晶组成的初步调整已经在 450°C 时得到了高达 0.55 的品质因数。
