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  Journal of Nanoscience Letters 2014, 4: 1
  Research Article
Structural and electronic properties of graphene nanoribbons from oxidative unzipping of carbon nanotubes
  Darkeyah G. Reuven, Kelvin Suggs, Michael D. Williams, Xiao-Qian Wang  
Department of Physics and Center for Functional Nanoscale Materials, Clark Atlanta University, Atlanta, Georgia 30314, USA
  Longitudinal unzipping of multiwall carbon nanotubes is an effective fabrication method for generating graphene oxide nanoribbons. The nanoscale morphology and edge smoothness of unzipped graphene oxide nanoribbons have been investigated utilizing noncontact atomic force microscopy and Raman spectroscopy. First-principles dispersion-corrected density-functional calculations indicate hole-doped behavior on graphene oxide nanoribbons due to oxidative unzipping. Our findings are in good conformity with observed Raman spectroscopic blue shift of the G-band. Graphene nanoribbons provide a promising route for functionalized nanostructures.
  Graphene nanoribbons; Carbon nanotubes; Raman spectroscopy; Electronic structure  

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