Surface Photochemistry and Interfacial Charge Transfer

表面光化学和界面电荷转移

• 批准号: 0070122
• 负责人: John White
• 金额: $ 51.05万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-05-01 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0070122&HistoricalAwards=false
• 关键词: Surface; Photochemistry; Interfacial; Charge; Transfer

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.

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白色博士进行，并得到分析和表面化学项目的支持。 研究集中在两个领域。 （1）亚硝酸烷基酯吸附在金属表面的光解离动力学研究;（2）有机发光二极管（OLED）的电荷转移反应研究。 白色博士发现有三种途径与光解离有关。 每一个路径的影响，表面基板（金属），吸附层的结构，能量和方法的激发和共吸附物种的存在。 研究计划的第一部分将侧重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相关联。 这两个项目都将使用最先进的表面表征技术进行。 这两个项目将提供一个重要的和基本的理解光解机制和OLED。 这项研究的结果将对金属上吸附物种的基本光化学领域以及对发光的理解以及它如何受到结构和电子性质的影响产生影响。 OLED研究可能对新材料和设备的开发产生广泛影响。