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Growth of solution cast macromolecular #pi#-conjugated nanoribbons on mica

机译:溶液浇铸大分子#pi#共轭纳米带在云母上的生长

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摘要

We report on the growth of molecular nanoribbons from a #pi#-conjugated polymer. A polydisperse, soluble, end-functionalized poly(para-phenyleneethynylene) (PPE) derivative can self-assemble from solution on flat solid substrates into nanoribbons with a molecular cross-section and a length on the micrometer scale. By using different solvents it has been possible to produce either predominantly randomly oriented ribbons or to align them along the 3-fold symmetry axes of crystalline mica substrates. These nanostructures may be useful for the fabrication of molecular nanowires. Their growth behaviour suggests that the self-assembly of PPE in thin films from solutions is usually governed kinetically.
机译:我们报道了从#pi#共轭聚合物分子纳米带的增长。多分散的,可溶的,末端官能化的聚对苯二乙炔(PPE)衍生物可以从平面固体基质上的溶液中自动组装成具有分子截面和微米级长度的纳米带。通过使用不同的溶剂,有可能产生主要是随机取向的带,或者使它们沿着晶体云母基板的3倍对称轴对齐。这些纳米结构可用于制造分子纳米线。它们的生长行为表明,溶液中PPE的自组装通常是动力学控制的。

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