具有类石墨烯结构的共价有机网格结构具有新颖的结构特征，可设计的材料特性，是一类具有重要科学和应用意义的材料。虽然表面合成单层有机网格（sCOF）结构与材料具有较好的可行性，但是由于相关合成策略的发展不够成熟，目前已报道的结果普遍存在有序性差，畴区小等缺点，制约了材料性质的表征和应用。本项目将以sCOF结构材料为研究对象，通过对表界面分子吸附、反应和组装规律的延伸以及对表界面sCOF形成反应独特性的认识，着力于发展有效的sCOF结构材料构筑方法学，进而揭示sCOF材料拓扑结构与性质之间的构效关系，并探索sCOF材料在有机光电功能器件等方面的应用。本项目的研究内容即是表面物理化学的基本研究内容，又与材料科学、纳米电子学等领域有着较强的学科交叉。通过本项目的实施，将有可能在sCOF结构材料的合成策略方面产生突破，获得具有独特结构特征和性能可设计的sCOF结构材料。

Two-dimensional (2D) nanomaterials, such as graphene, transition metal chalcogenides, have shown many interesting dimension-related materials properties. Inspired by the development of 2D inorganic nanomaterials, single-layered covalent organic frameworks (sCOFs), featured by atomic thick sheet and crystalline extended organic structures with covalently bonded building blocks, have attracted great attention in recent years. With unique graphene-like topological structure and the merit of structural diversity, sCOFs are promised to possess novel and designable properties. However, the synthesis of sCOFs with well-defined structures remains a great challenge. In this project, we are devoted to the development of bottom-up synthesis methods of 2D sCOFs, such as thermodynamic equilibrium control methods, growth kinetics control methods, and surface-assisted covalent polymerization methods. The high quality sCOFs with large area and low defect density will pave the way to understand the structure-property relationship of these materials. Finally, we will explore the potential application of sCOF materials for organic electronics and sensors.