Surface fractal evolution induced rubbing for rapid room temperature and transfer-free fabrication of graphene on flexible polymer substrate

摘要

Graphene as functional layer on flexible polymers for stretchable applications have attracted much research interests, and the fabrication methods are of great importance. In this letter, rapid room temperature and transfer-free fabrication of few-layer graphene on flexible polymer substrates has been realized by rubbing method. This is achieved by the surface fractal evolution rubbing step which can evolve sandpaper surface to form relatively large area of smooth parts as self-lubricated smooth surface. The graphene displayed strong adhesion with flexible polymer substrates, which is benefit for applications. Physical mechanisms of rubbing steps and fabrication of graphene on polymers are studied.