Forced To Align: Flow-Induced Long-Range Alignment of Hierarchical Molecular Assemblies from 2D to 3D

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• 作者：Shern-Long Lee ; Zhongyi Yuan ; Long Chen ; Kunal S. Mali ; Klaus M眉llen ; Steven De Feyter
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：March 19, 2014
• 年：2014
• 卷：136
• 期：11
• 页码：4117-4120
• 全文大小：366K
• 年卷期：v.136,no.11(March 19, 2014)
• ISSN：1520-5126

文摘

Nanostructured molecular thin films adsorbed on solid surfaces form the basis of numerous applications. Long-range order within adsorbed molecules is very often a desirable property for such systems. In this contribution, we report a simple and efficient method to fabricate well-aligned thin films of organic molecules over a few millimeter squares. The strategy involves use of capillary force in a two-step flow method to induce large-area alignment of multilayers of molecules at the organic liquid鈥搒olid interface. Furthermore, we also demonstrate the influence of alignment on the electron transport through these well-aligned thin films using scanning tunneling spectroscopy.