Surface Photochemistry and Interfacial Charge Transfer

这项名为“表面光化学和界面电荷转移”的研究项目将由德克萨斯大学奥斯汀分校的J. Michael White博士主持，并得到分析和表面化学项目的支持。这项研究集中在两个方面。(1)吸附的烷基亚硝酸盐在金属上的光解动力学研究；(2)作为发光二极管（oled）的有机体系的电荷转移反应研究。怀特博士发现有三种途径与光解作用有关。每个途径都受表面底物（金属）、层结构、能量和激发方法以及共吸附物质的存在的影响。研究计划的第一部分将集中于阐明影响和分离途径。研究计划的第二部分旨在表征吸附oled的结构和电子特性，并将这些特性与发光特性联系起来。这两个项目都将使用最先进的表面表征技术进行。这两个项目将为光解离机制和有机发光二极管提供重要和基础的理解。本研究的结果将对金属吸附物质的基础光化学领域以及对发光及其受结构和电子性质影响的理解产生影响。OLED研究可能会对新材料和新设备的发展产生广泛的影响。

The research project entitled "Surface Photochemistry and Interfacial Charge Transfer" will be conducted by Dr. J. Michael White from the University of Texas, Austin and is supported by the Analytical and Surface Chemistry program. The research is focused in two areas. (1)The study of photodissociation dynamics of adsorbed alkyl nitrite species on metals, and (2) the study of charge transfer reactions of organic systems which function as light emitting diodes (OLEDs). Dr. White has found that there are 3 pathways associated with the photodissociations. Each pathway is affected by the surface substrate (metal), the adlayer structure, energy and method of excitation and the presence of coadsorbed species. The first part of the research program will focus on elucidating the effects and separating the pathways. The second part of the research program seeks to characterize the structure and electronic properties of adsorbed OLEDs and correlating these properties to luminescent characteristics. Both of these projects will be carried out using state of the art surface characterization techniques. Both projects will provide an important and fundamental understanding of photodissociation mechanisms and OLEDs. The results of this research will have an impact on the area of fundamental photochemistry of adsorbed species on metals and on the understanding of luminescence and how it is affected by structure and electronic properties. The OLED studies could potentially have a broad impact on the development of new materials and devices.