Multiple-structured nanocrystals towards bifunctional photoluminescent-superhydrophobic surfaces
Multiple-structured nanocrystals towards bifunctional photoluminescent-superhydrophobic surfaces
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双功能光致发光-超疏水表面的多重结构纳米晶体
DOI：
10.1039/b926761a
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发表时间：
2010-01-01
影响因子：
--
通讯作者：
Chen, Su
中科院分区：
文献类型：
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作者：
Hou, Linrui;Wang, Caifeng;Chen, Su
我们报告了一种简单有效的策略，用于通过简单的界面自组装技术制备具有光致发光和疏水特性的二硫代氨基甲酸酯功能化CdS纳米晶体（NC）的多种层次结构。巯基乙酸（TGA）与二硫代氨基甲酸盐在两相界面发生配体交换反应，赋予CdS多种形貌。同时，与母体NC相比，界面自组装后所得的二硫代氨基甲酸酯功能化NC表现出良好的光化学稳定性和增强的光致发光（PL）。此外，在这种情况下，引入具有长烷基链的二硫代氨基甲酸酯配体可以显着增强NCs的疏水性能。通过简单地改变具有不同内在疏水性的定向配体，可以制造由荧光NC构建的超疏水表面。
We report a simple and efficient strategy for the preparation of diverse hierarchical structures of dithiocarbamate-functionalized CdS nanocrystals (NCs) exhibiting both photoluminescent and hydrophobic properties via a facile interfacial self-assembly technique. The ligand exchange reaction of thioglycolic acid (TGA) with dithiocarbamates at the biphase interface endowed CdS with diversiform morphologies. Simultaneously, the resulting dithiocarbamate-functionalized NCs after interfacial self-assembly exhibit good photochemical stability and enhanced photoluminescence (PL) in comparison with the parent NCs. Moreover, the introduction of dithiocarbamate ligands with long alkyl chains can significantly enhance the hydrophobic properties of NCs in this case. By simply varying the directing ligands with different intrinsic hydrophobic natures, superhydrophobic surfaces constructed from the fluorescent NCs can be fabricated.