Synthetic Integration of Inorganic-Organic Functionality in Hybrid Semiconductors Based on Chalcogenide Clusters

无机化学、生物无机化学和金属有机化学项目的这一奖项支持加州大学河滨分校冯平云教授开发基于硫系四面体簇合物和各种功能有机物种的固态材料的研究。这项拟议的研究旨在探索有机分子的结构和功能多样性，以控制硫化物簇合物和骨架的结晶过程和结构，并修改和提高由此产生的硫化物簇合物和复合材料的光学和电光性能(整合簇合物和功能有机成分)。将针对三种独特类型的复合材料，其中硫系簇合物与光学活性金属络合物或有机染料分子集成到染料敏化系统中，(2)与有机电子受体集成到电荷转移系统或稳定自由基中，以及(3)与具有扩展体系的配体集成到共价组织的多维系统中。随着新复合材料的开发，该项目将研究它们的电学、光学和光电化学特性，以期在太阳能转换为燃料或电力等应用中具有潜在的用途。该项目开发的新材料可能会在太阳能转换、化学传感器和生物传感器方面带来新的应用。加州大学河滨分校的非裔美国人和西班牙裔美国人的入学率很高，并强烈鼓励本科生进行研究。这项拟议的工作将为学生提供合成、结构表征和性质测量方面的培训，并为他们在科学领域的职业生涯做好准备。

This award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports research by Professor Pingyun Feng at the University of California at Riverside to develop solid-state materials based on chalcogenide tetrahedral clusters and various functional organic species. The proposed research seeks to explore structural and functional diversity of organic molecules to control the crystallization process and structures of chalcogenide clusters and frameworks and to modify and enhance optical and electrooptical properties of resulting chalcogenide clusters and composite materials (integrating both clusters and functional organic components). Three unique types of composite materials will be targeted in which chalcogenide clusters are integrated (1) with optically active metal-complex or organic dye molecules into the dye-sensitized system, (2) with organic electron acceptors into the charge-transfer system or stable radicals, and (3) with ligands with extended systems into covalently organized multi-dimensional systems. With new composite materials developed, this project will investigate their electronic, optical, and photoelectrochemical properties for potential use in applications such as solar energy conversion into fuels or electricity. New materials developed in this project could lead to new applications in solar energy conversion, chemical sensors, and biosensors. UC Riverside has a high African-American and Hispanic enrollment and strongly encourages undergraduate research. The proposed work will provide training for students in synthesis, structural characterization, and property measurements and prepare them for careers in science.