Chemical Functionalization of Graphene Nano ribbons

We review the electronic properties of graphene nano ribbons functionalized by various elements and functional groups. Graphene nano ribbons are strips of graphene, the honeycomb lattice of carbon with sp2 hybridization. Basically nano ribbons can be classified into two categories, according to the geometry of their edge, armchair, and zigzag, which determine their electronic structure. Due to their fascinating electronic and magnetic properties many applications has been suggested for these materials. One of the major methods to use graphene nano ribbons in future applications is chemical functionalization of these materials to make an engineering on their band gap. In this review, we introduce various types of modifying graphene nano ribbons to meet their promising applications