Nanometer-scale patterning of surfaces using self-assembly chemistry. 3. Template-directed growth of polymer nanostructures on organothiol self-assembled mixed monolayers

被引:52
作者
Hayes, WA [1 ]
Shannon, C [1 ]
机构
[1] Auburn Univ, Dept Chem, Auburn, AL 36849 USA
关键词
D O I
10.1021/la9706476
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the template-directed growth of polyaniline nanostructures at Au electrodes modified with two-component self-assembled monolayers consisting of 4-aminothiophenol (4-ATP) and n-octadecanethiol (ODT). 4-ATP, which is more easily oxidized to the cation radical than aniline, serves as a nucleation site for the electrochemical deposition of polyaniline. Therefore, when 4-ATP/ODT mixed monolayers are oxidized in the presence of aniline, polyaniline features are formed selectively from islands of 4-ATP embedded in the ODT monolayer. The size and distribution of these features were characterized by AFM. In this work, we show that the feature density is a function of monolayer composition and that the feature height is dependent on the concentration of aniline in solution.
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页码:1099 / 1102
页数:4
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