Ultrafast Spectroscopic Studies of the Organization and Dynamical Properties of Organic-Modified Interfaces

本研究项目由分析和表面化学计划资助，研究自组装有机覆盖层中拴系发色团的动力学行为。利用稳态和超快激光光谱探针以及来自发色团的荧光的演变，将研究系留探针分子的重定向动力学作为其微环境的函数。这些信息对于设计具有高度特定属性的接口非常有用。这项研究将提供关于这些有趣和重要的材料系统的第一个动力学信息。嵌入有机覆盖层的分子的分子水平组织和时间依赖行为是本研究项目的主题。利用短时间尺度光谱方法，探针分子在自组装单层中的行为将被检查。关于这些有机覆盖层的动力学信息对于这些材料在有用的电子器件中的最终应用是必不可少的。

This research project, supported by the Analytical and Surface Chemistry Program, studies the dynamical behavior of tethered chromophores in self-assembled organic overlayers. Using steady state and ultrafast laser spectroscopic probes and the evolution of fluorescence from the chromophore, the reorientation dynamics of the tethered probe molecule will be examined as a function of its micro-environment. This information will be useful for the design of interfaces with highly specific properties. This study will provide the first dynamical information about these interesting and important material systems. %%% The molecular level organization and time-dependent behavior of molecules imbedded in organic overlayers is the subject of this research project. Using short time scale spectroscopic methods, the behavior of probe molecules in self-assembled monolayers will be examined. Information about the dynamics of these organic overlayers is essential to the eventual application of these materials in useful electronic devices.