Ultrathin Film Molecular Materials: Characterization of Self-Organizing Discotic Materials and Organic Heterojunction Formation, at the Nanometer Scale

亚利桑那大学的尼尔·阿姆斯特朗教授由分析和表面化学计划资助，用于制备和表征用于电子应用的有机材料有序薄膜。界面诱导的层状无序降低了载流子的迁移率，因此可能会限制有机材料在分子电子学中的应用。PI建议通过自组织来修饰基于酞菁的盘状材料，以促进聚合和排列。将使用两种表面修饰来实现对准：化学修饰的衬底和毛细管通道。材料将用原子力显微镜(AFM)，包括导电尖端AFM和光电子能谱进行表征。这种与技术相关的有机材料在场效应晶体管和光伏等电子设备中具有潜在的用途。分子电子学的小型化是纳米技术的目标之一。

Professor Neal Armstrong of the University of Arizona is funded by the Analytical and Surface Chemistry Program to prepare and characterize ordered thin films of organic materials for electronic applications. Interface-induced disorder in layers lowers carrier mobility and therefore could limit organic materials' use in molecular electronics. The PI proposes to modify phthalocyanine-based discotic materials to facilitate polymerization and alignment by self-organization. Two surface modifications will be used to enable the alignment: chemically modified substrates and capillary channels. The materials will be characterized by atomic force microscopy (AFM), including conductive tip AFM, and photoemission spectroscopy. This technologically relevant class of organic materials has potential uses in electronic devices such as field effect transistors and photovoltaics. Molecular electronics for miniaturization is one of the goals of nanotechnology.