Understanding the Relationship Between Interface Morphology and Dynamical Properties in Layered Molecular Assemblies

界面系统的动力学行为是密歇根州立大学由分析和表面化学项目支持的研究项目的主题。利用界面结合荧光探针分子的超快光谱方法研究了两类表征良好的界面层的缺陷结构、分子的运动自由度、溶剂进入界面的渗透性以及能量迁移和耗散。在金表面自组装的烷硫醇单层，以及在金属和电介质衬底上合成的磷酸锆多层，作为模型系统，用于开发对界面材料动力学性质的分子理解。这些信息对于这些材料在各种重要技术中的应用至关重要，包括分子电子器件和色谱分离。分子界面在一系列关键技术中发挥着重要作用，从催化到分子电子器件制造。本研究项目的工作是致力于利用最先进的快速光谱方法，在分子水平上理解分子界面的动力学。从这些研究中获得的信息对界面分子层的合理设计和应用至关重要。

The dynamical behavior of interfacial systems is the subject of this research project at Michigan State University supported by the Analytical and Surface Chemistry Program. Ultrafast spectroscopic methods using interfacially bound fluorescent probe molecules are applied to the study of defect structure, motional freedom of molecules, permeability of solvent into the interface, and energy migration and dissipation in two classes of well characterized interfacial layers in this work. Self-assembled monolayers of alkanethiols on gold surfaces, and zirconium phosphonate multilayers synthesized on metal and dielectric substrates serve as the model systems for developing a molecular understanding of the dynamical properties of interfacial materials. This information is crucial to the use of these materials in a variety of important technologies, including molecular electronic devices and chromatographic separations. Molecular interfaces play important roles in a range of critical technologies, from catalysis to molecular electronic device fabrication. The work of this research project is devoted to developing a molecular level understanding of the dynamics of molecular interfaces using state-of-the-art fast spectroscopic methods. Information obtained from these studies is essential to the rational design and application of interfacial molecular layers.