Spectroscopically Determined Excited State Properties and Photochemical Reactivities of Inorganic Compounds

加利福尼亚大学洛杉矶分校的Jeffrey Zink得到了实验物理化学计划的支持，对金属和半导体光沉积的无机分子前体的激发电子态和反应性进行了广泛的研究。 该计划包括三个互补的目标，这将主要通过实验和一些理论研究进行检查。 第一个目标，光谱表征含金属化合物的激发电子态，依赖于电子和共振拉曼光谱。第二个目标是研究这些分子的单光子和多光子光化学以及反应的波长依赖性。 初级光产物将被确定，并从特定的激发态的反应途径的基本理解将获得。 第三个目标是光化学制造金属和半导体的纳米结构。 重点是结构化纳米多孔材料的孔中的光化学，其中材料充当图案化量子点和线的模板。 预计结果将使激发电子态的光谱理解，从这些状态的光化学反应的解释，并深入了解所需的存款纳米结构的materials.Molecules，可以作为化学气相沉积的前体是这个研究项目的重点。 在制造固体和纳米结构中的实际应用的可能性激发了这些光谱和光化学研究。学生将有机会进行跨学科的研究，既有基本的和实际的影响。

Jeffrey Zink of the University of California-Los Angeles is supported by the Experimental Physical Chemistry Program to carry out a broadly-based study of excited electronic states and reactivities of inorganic molecular precursors for photodeposition of metals and semiconductors. The program consists of three complementary objectives, which will be examined by primarily experimental and some theoretical studies. The first objective, to characterize spectroscopically the excited electronic states of metal-containing compounds, relies on electronic and resonance Raman spectroscopies. The second objective is to study the single and multiphoton photochemistry and the wavelength dependence of the reactions of these molecules. Primary photoproducts will be identified, and fundamental understanding of the reaction pathways from specific excited states will be obtained. The third objective is to photochemically make nano-structures of metals and semiconductors. The emphasis is on photochemistry in the pores of structured nanoporous materials where the material acts as a template for patterned quantum dots and wires. Outcomes are expected to enable spectroscopic understanding of excited electronic states, interpretation of the photochemical reactions from these states, and insights into photochemical conditions necessary to deposit desired nano-structured materials.Molecules that can be useful as precursors for chemical vapor deposition are a focus of this research project. The possibility of practical applications in making solids and nano-structures motivates these spectroscopic and photochemical studies. Students will have the opportunity to carry out interdisciplinary research with both fundamental and practical impacts.