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

技术综述：通过整合金属硫化物簇合物化学、配位化学和纳米多孔固体等多个领域的合成和结构原理，这项研究在固态和材料化学计划的支持下，试图利用复杂的多组分和多步共组装过程来创建新一代具有有机功能部分的超分子硫化物簇合物及其有序组装。具体地说，拟议的研究旨在利用有机分子的结构和功能多样性来控制硫系簇合物和扩展骨架的结构，并增强它们的电光性质和功能。为了尽量减少在多组分体系中常见的相分离的可能性，将选择无机和有机组分，使每个组分发挥独特的作用，与其他组分互补，PI还将寻求朝着模块化合成的方向进行金属硫化物簇合物研究，方法是创建预先设计的离散硫化物簇合物。预组装超分子单元的使用不仅简化了共组装过程，而且允许使用较温和的合成条件来访问亚稳态相区，这对于共组装成具有开放体系结构的拓扑结构尤为可取。非技术概述：通过这项拟议的研究，将开拓跨学科研究的新领域，涉及半导体纳米颗粒、硫系分子簇、配位聚合物和传统沸石等不同领域。该项目开发的新材料将包括晶态高表面积半导体，在各种能源和环境科学相关领域具有潜在应用。加州大学河滨分校拥有加州大学校园中最多元化的学生群体。本科生的研究在PI的小组中得到了高度支持。该协会积极参与本科生和高中生的各种教育和培训计划。拟议的项目可以用来向广泛和高度多样化的学生受众灌输对材料化学职业的热情。该项目结合了材料类型的多样性和各种测量技术，旨在为能源或环境科学相关应用开发新材料。因此，它将为学生提供极好的合成、结构表征和性质测量方面的培训机会，并为他们在科学领域具有挑战性但有益的职业生涯做好准备。

TECHNICAL SUMMARY: By integrating synthetic and structural principles from several fields including metal chalcogenide cluster chemistry, coordination chemistry, and nanoporous solids, this research supported by the Solid State and Materials Chemistry Program seeks to employ complex multi-component and multi-step co-assembly processes to create a new generation of supramolecular chalcogenide clusters and their organized assemblies with organic functional moieties. Specifically, the proposed research seeks to utilize structural and functional diversity of organic molecules to control structures of chalcogenide clusters and extended frameworks and to enhance their electrooptical properties and functionalities. To minimize the possibility for phase separation common in multi-component systems, inorganic and organic components will be chosen so that each component plays a unique role that is complementary to other components, The PI will also seek to pursue metal chalcogenide cluster research in a direction towards the modular synthesis, by developing methods to create pre-designed discrete chalcogenide clusters. The use of pre-assembled supramolecular units not only simplifies the co-assembly process, but also allows the use of milder synthetic conditions to access metastable phase domains, which is particularly desirable for co-assembly into topologies with open architecture. NON-TECHNICAL SUMMARY: Through this proposed research, new areas of cross-disciplinary research bordering various fields such as semiconducting nanoparticles, chalcogenide molecular clusters, coordination polymers, and traditional zeolites will be developed. New materials developed in this project will include crystalline high-surface-area semiconductors with potential applications in various energy and environmental science related areas. UC Riverside has the most diverse student population among UC campuses. Undergraduate research is highly supported in the PI's group. The PI is actively involved in various educational and training programs for undergraduate and high school students. The proposed project can be used to infuse a wide and highly diverse student audience with enthusiasm for careers in materials chemistry. The project combines diversity in materials types and various measurement techniques and aims to develop new materials for energy or environmental science related applications. It will therefore provide excellent training opportunities for students in synthesis, structural characterization, and property measurements and prepare them for a challenging, but rewarding career in science.