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分析和表面化学计划支持的这一研究项目的主题。 超快光谱方法，使用界面结合的荧光探针分子的缺陷结构，分子的运动自由度，溶剂的渗透性到界面，以及能量迁移和耗散的两类良好表征的界面层的研究在这项工作中。 自组装单分子膜的烷硫醇在金表面上，和金属和介电基板上合成的膦酸锆多层膜作为模型系统开发的分子理解的界面材料的动力学性质。 这些信息对于在各种重要技术中使用这些材料至关重要，包括分子电子器件和色谱分离。 分子界面在从催化到分子电子器件制造的一系列关键技术中发挥着重要作用。 该研究项目的工作是致力于发展一个分子水平的理解，使用国家的最先进的快速光谱方法的分子界面的动态。 从这些研究中获得的信息是必不可少的界面分子层的合理设计和应用。

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.