Ion irradiation induced structural and electrical transition in graphene |
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Authors: | Zhou Yang-Bo Liao Zhi-Min Wang Yi-Fan Duesberg Georg S Xu Jun Fu Qiang Wu Xiao-Song Yu Da-Peng |
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Affiliation: | State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, People's Republic of China. |
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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. |
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