Alternative preparation and morphologies of self-assembled colloidal crystals via combining capillarity and vertical deposition between two desired substrates

Alternative preparation and morphologies of self-assembled colloidal crystals via combining capillarity and vertical deposition between two desired substrates
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通过结合两个所需基材之间的毛细管作用和垂直沉积来替代制​​备自组装胶体晶体和形态

DOI:
10.1016/j.colsurfa.2007.07.017
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发表时间:
2008-02
影响因子:
5.2
通讯作者:
Yang, Bai
Yang, Bai
中科院分区:
化学2区
文献类型:
--
作者:
Chen, Xin;Chen, Zhimin;Zhang, Kai;Sun, Zhiqiang;Shang, Weijuan;Yang, Bai

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我们描述了两个衬底的垂直沉积的自组装胶体晶体的制造相结合的毛细作用和两个所需的表面之间的垂直沉积。这些胶体晶体对于液体或溶液的流动具有高的机械稳定性。它们允许通过在受限的胶体晶体中渗透一些液体(例如水)来灵活地调节它们的光学性质。我们研究了通过改变pH值以及微球悬浮液中的附加溶剂、电解质和离子表面活性剂的浓度来优化胶体晶体的形成。胶体晶体的稳定性和制备的多样性将有助于拓展自组装胶体晶体的研究及其在功能材料和器件中的应用。
We describe the two-substrate vertical deposition for the fabrication of self-assembled colloidal crystals by combining the capillarity and vertical deposition between two desired surfaces. These colloidal crystals are gifted with high mechanical stability toward the flow of liquids or solutions. They allow flexible modulating of their optical properties by infiltrating some liquids (e.g. water) in the confined colloidal crystals. We investigate the optimization of the formation of colloidal crystals by varying the pH value, as well as the concentrations of the additional solvents, electrolytes and ionic surfactants in the microsphere suspensions. The stability and the versatile fabrication of colloidal crystals would be valuable for extending investigations on self-assembled colloidal crystals and their applications in the functional materials and devices.
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