Research on graphene brings not only a new nanomaterial with excellent physical and chemical properties. Most importantly, the material revolutionized the traditional ideology on nanoscience and nanotechnology and opened up a door to a new two-dimensional (2D) nano-system [1]. Following the same vein on the graphene study, researchers have started the exploration of graphene analogue - material comprising stacked atomic or molecular layers [2]. Strong covalent bonds in layer and weak van der Waals interaction between layers allow the graphene analogues forming robust 2D nanostructure.