Organic nanofibers from thiophene oligomers
Organic nanofibers from thiophene oligomers
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DOI：
10.1016/j.tsf.2009.06.003
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发表时间：
2009-11-02
期刊：
影响因子：
2.1
通讯作者：
Rubahn, H. -G.
中科院分区：
文献类型：
--
作者：
Kankate, L.;Balzer, F.;Rubahn, H. -G.
我们报告了白云母 (001) 上 α-四噻吩和 α-六噻吩簇、针（或“纤维”）和扁平岛的生长和形态。样品通过有机分子束沉积制备，并通过偏振荧光显微镜和原子力显微镜进行非原位表征。将这种噻吩纤维的生长机制与对亚苯基的生长机制进行比较。表面上存在不同的针方向，它们的形成可以通过外延和电场辅助对准的组合来解释。 (C) 2009 Elsevier B.V. 保留所有权利。
We report on the growth and morphology of alpha-quaterthiophene and alpha-sexithiophene clusters, needles (or "fibers"), and flat islands on muscovite mica (001). Samples are prepared by organic molecular beam deposition, and characterized ex situ by polarized fluorescence microscopy and by atomic force microscopy. The growth mechanism of such thiophene fibers is compared to that of para-phenylenes. Distinct needle orientations are present on the surface, their formation being explained by a combination of epitaxy and electric field assisted alignment. (C) 2009 Elsevier B.V. All rights reserved.