title: Ion irradiation induced structural and electrical transition in graphene.
abstract: The relationship between the electrical properties and structure evolution of single layer graphene was studied by gradually introducing the gallium ion irradiation. Raman spectrums show a structural transition from nano-crystalline graphene to amorphous carbon as escalating the degree of disorder of the graphene sample, which is in correspondence with the electrical transition from a Boltzmann diffusion transport to a carrier hopping transport. The results show a controllable method to tune the properties of graphene.
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Yang-Bo
authors.initials: YB
authors.lastname: Zhou
authors.forename: Zhi-Min
authors.initials: ZM
authors.lastname: Liao
authors.forename: Yi-Fan
authors.initials: YF
authors.lastname: Wang
authors.forename: Georg S
authors.initials: GS
authors.lastname: Duesberg
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Fu
authors.forename: Xiao-Song
authors.initials: XS
authors.lastname: Wu
authors.forename: Da-Peng
authors.initials: DP
authors.lastname: Yu