Three-Dimensional Nanocrystal Superlattices Grown in Nanoliter Microfluidic Plugs

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• 作者：Maryna I. Bodnarchuk ; Liang Li ; Alice Fok ; Sigrid Nachtergaele ; Rustem F. Ismagilov ; Dmitri V. Talapin
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：June 15, 2011
• 年：2011
• 卷：133
• 期：23
• 页码：8956-8960
• 全文大小：836K
• 年卷期：v.133,no.23(June 15, 2011)
• ISSN：1520-5126

文摘

We studied the self-assembly of inorganic nanocrystals (NCs) confined inside nanoliter droplets (plugs) into long-range ordered superlattices. We showed that a capillary microfluidic platform can be used for the optimization of growth conditions for NC superlattices and can provide insights into the kinetics of the NC assembly process. The utility of our approach was demonstrated by growing large (up to 200 渭m) three-dimensional (3D) superlattices of various NCs, including Au, PbS, CdSe, and CoFe₂O₄. We also showed that it is possible to grow 3D binary nanoparticle superlattices in the microfluidic plugs.