报告人：André-Jean Attias (Paris Institute of Molecular Chemistry, Pierre and Marie Curie University )

　　题目：Surface-confined self-assembled Janus tectons: a versatile platform towards the non-covalent functionalization of graphene. 

　　时间：2015年10月16日（周五），上午10:00 

　　地点：纳米中心南楼二层会议室 

　　邀请人：杨延莲研究员 

　　摘要： 

　　Two-dimensional (2D), supramolecular self-assembly at surfaces is now well-mastered with several existing examples. However, one remaining challenge to enable future applications in nanoscience is to provide potential functionalities to the physisorbed organic adlayer.    

Here we present a recently developed strategy that addresses this key issue by taking advantage of a new concept, Janus tecton materials. This new kind of Janus material is a versatile, molecular platform based on the design of three-dimensional (3D) building blocks consisting of two faces linked by a pillar. One face is designed to steer 2D self-assembly onto C(sp2)-carbon-based flat surfaces, the other allowing for the desired functionality above the substrate with a well-controlled lateral order.  

In this way, it is possible to simultaneously obtain a regular, non-covalent paving as well as supramolecular noncovalent functionalization of graphene, thus opening interesting perspectives for nanoscience applications.