(also called nano-graphene
ribbons), often abbreviated gnrs, are thin strips of graphene or unrolled single-walled carbon nanotubes.
ribbons were originally introduced as a theoretical model by Mitsutaka Fujita
et.al. To examine the edge and nanoscale
effect in graphene.
states largely depend on the edge structures (armchair or zigzag). Zigzag edges provide the edge
with non-bonding molecular
orbitals near the Fermi energy.
They are expected to have large changes in optical
properties from quantization.