On the role of line-edge roughness on the diffusion and localization in GNRs

In this work a comprehensive study of the effect of line-edge roughness on the electronic properties of graphene nanoribbons is presented. The effect of roughness parameters and the role of device geometry is discussed. Depending on these parameters, carrier transport can be in the quasi ballistic, diffusive, or localization regime. Our results show the transport gap of nanoribbons can increase due to the presence of line-edge roughness.