Laser-induced unzipping of carbon nanotubes to yield graphene nanoribbons.

Irradiation of undoped and doped multi-walled carbon nanotubes by an excimer laser (energy ∼200-350 mJ) yields graphene nanoribbons (GNRs). The GNRs so obtained have been characterized by transmission electron microscopy, atomic force microscopy and Raman spectroscopy.

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