Gate capacitance modeling and width-dependent performance of graphene nanoribbon transistors
The width-dependent performance of armchair GNRs-FETs is investigated by analytical modeling. The model incorporates the edge bond relaxation and 3NN interaction. Intrinsic gate delay time, cutoff-frequency and Ion/Ioff I on / I off ratio are calculated. Widths of about 34nm at most are required to obtain optimum on/off performance.
gate capacitance graphene nanoribbons graphene fets analytic ballistic model performance metrics