标题： 卤素键驱动的全氟碳单层自组装 显示英文标题

标题： Halogen-Bond Driven Self-Assembly of Perfluorocarbon Monolayers

摘要： 单层有机分子在基底上的自组装是一种强有力的策略，用于修饰表面和界面性质。分子与基底以及分子之间的详细相互作用对于制备稳定且均匀的单分子涂层至关重要。硫醇盐、硅烷、膦酸酯和羧酸盐是广泛使用的头部基团，用于将有机分子连接到特定表面上。我们研究显示，稳定且高度致密的全氟碳单层的自组装。值得注意的是，在氮化硅基底上的全氟十二烷基碘单层测得了有史以来报道的最低表面能2.6 mJ m-2。作为一种方便、灵活且简单的方法，卤素键驱动的全氟碳单层的自组装与多种应用兼容，从生物传感到电子学和微流控技术。与其他用于功能化表面和界面的方法相比，我们的方法具有独特的优势，可以使用极其惰性的全氟化溶剂。我们证明了通常在接触许多常见有机溶剂时不稳定的表面，如有机-无机钙钛矿，可以通过卤素键进行功能化。 显示英文摘要

摘要： The self-assembly of a single layer of organic molecules on a substrate is a powerful strategy to modify surfaces and interfacial properties. The detailed interplay of molecule-to-substrate and molecule-molecule interactions are crucial for the preparation of stable and uniform monomolecular coatings. Thiolates, silanes, phosphonates and carboxylates are widely used head-groups to link organic molecules to specific surfaces study we show that self-assembly of stable and highly compact monolayers of perfluorocarbons. Remarkably, the lowest ever reported surface energy of 2.6 mJ m-2 was measured for a perfluorododecyl iodide monolayer on a silicon nitride substrate. As a convenient, flexible and simple method, the self-assembly of halogen-bond driven perfluorocarbon monolayers is compatible with several applications, ranging from biosensing to electronics and microfluidics. Compared to other methods used to functionalise surfaces and interfaces, our procedure offers the unique advantage to work with extremely inert perfluorinated solvents. We demonstrate that surfaces commonly unstable in contact with many common organic solvents, such as organic-inorganic perovskites, can be functionalized via halogen bonding.