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D. V. Kosynkin, A. L. Higginbotham, A. Sinitskii, J. R. Lomeda, A. Dimiev, B. K. Price, J. M. Tour*
Rice University, Houston, USA
22 June 2009 (online)
Graphene refers to single-layered graphite. It exhibits high crystallinity along with interesting electronic properties. Graphene nanoribbon refers to a long, thin strip of graphene with straight edges, and these nanoribbons can act as semiconductors or semimetals depending on their width. Graphene therefore has a profound potential for application in material science, including fabrication of nanoscale devices. The authors report a simple method of preparing graphene nanoribbons by ”unzipping" multiwalled carbon nanotubes. The reported method is very mild and gives the desired ribbon structures readily in essentially quantitative yields.