Ion irradiation induced structural and electrical transition in graphene

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 o...

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Published inThe Journal of chemical physics Vol. 133; no. 23; p. 234703
Main Authors Zhou, Yang-Bo, Liao, Zhi-Min, Wang, Yi-Fan, Duesberg, Georg S, Xu, Jun, Fu, Qiang, Wu, Xiao-Song, Yu, Da-Peng
Format Journal Article
LanguageEnglish
Published United States 21.12.2010
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Summary: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.
ISSN:1089-7690
DOI:10.1063/1.3518979