The Submillimeter-Sized Dendritic Graphene Synthesized on Cu by Chemical Vapor Deposition

As is well-known, mastery to precisely control the shape, layer number and stacking order of the graphene are very interesting in scientific research. In this report, a fractal structure, namely dendritic graphene, has been successfully synthesized on Cu by chemical vapor deposition. The dendritic graphene is a multilayer structure with Bernal stacking order, which contains a monolayer graphene whose edge is etched deeply in the outer regions and exists single layer, bilayer, trilayer to multilayer graphene toward to the center. The interfaces between different numbers of the graphene layer were constructed naturally, which is interesting in scientific research both in theory and in experiment. Furthermore, a possible mechanism was proposed to understand the growth process, which may provide an instruction to graphene growth on Cu by chemical vapor deposition.