Graphene that consists of a single layer of carbon in a two dimensional lattice has attracted increasing attention in the recent years. Many methods such as mechanical cleavage [1], reduction of graphite oxide [2], epitaxial growth [3, 4], are used to prepare graphene. However, these methods take long time and get low yield of graphene. Chemical vapor deposition has recently been developed and extensively explored to grow large-area graphene, which greatly expands the applications of graphene [5]. In this work, an easy method of electric arc discharge is employed to prepare graphene fast and different gas atmospheres are used to show their influences on the preparation of graphene.
展开▼
