The Electronic Structure and Dynamics of Solvated Electrons at the Solid-vacuum Interface

这项研究项目在匹兹堡大学物理系教授Hrvoje Petek的指导下，研究了二氧化钛/水界面上的电子转移动力学。通过使用双光子光电子能谱探测表征良好的表面上的二维溶剂化电子态，Petek教授和他的同事们正在研究涉及这种瞬变状态的电荷转移的飞秒动力学。这一研究项目得到了分析和表面化学计划的支持，将为深入了解光催化和太阳能电化学电池提供基础信息。通过研究水/氧化物界面电子转移的超快动力学，匹兹堡大学的Petek教授和他的同事们正在了解光催化过程的基本步骤。这项工作使用双光子光电子能谱探针，提供了有关发光氧化物电极表面电荷转移的寿命和转移机制的基本信息。这些信息对光催化过程和太阳能电化学电池的设计和建造是有用的。

This research project, under the direction of Professor Hrvoje Petek of the Department of Physics at the University of Pittsburgh, addresses the dynamics of electron transfer at the titanium oxide/water interface. Probing the two dimensional solvated electron state at the well characterized surface using two photon photoelectron spectroscopy, Professor Petek and his coworkers are examining the femtosecond dynamics of charge transfer involving this transient state. This research project is supported by the Analytical and Surface Chemistry Program, and will provide fundamental information for the deeper understanding of photocatalysis and solar electrochemical cells. By examining the ultra fast dynamics of electron transfer at the water/oxide interface, Professor Petek and his coworkers at the University of Pittsburgh are learning about the fundamental steps in photocatalytic processes. Using two photon photoelectron spectroscopic probes, this work provides basic information about the lifetimes and transfer mechanisms for charge transfer at illuminated oxide electrode surfaces. This information is useful in the design and construction of photocatalytic processes and solar electrochemical cells.