Effects of edge chemistry doping on graphene nanoribbon mobility

We have presented a simulation study of the edge-doping-limited mobility. The edge chemistry of different dopant species is captured by calibrating TB Hamiltonian to the ab-initio simulations. Due to the nature of quasi-1D channel, electronic transport can be significantly degraded by edge chemistry doping especially at a small channel width. A Careful control of doping process (e.g. doping density less than 5% or a complete edge doping that substitutes all edge C atoms or H atoms) is important to reduce the adverse effects on mobility.