Cycloaddition Functionalization of Cleaved Microstructures

Where you want it, when you want it: When cleaved in vacuum, a semiconductor exposes a highly reactive surface that can be exploited to obtain well controlled chemical bonds. Now, using sacrificial microstructures and a 2+2 cycloaddition process, organic molecules are covalently bound to a silicon pre-patterned surface in liquid environment with accurate spatial control (see picture).