Performance Benchmarking for Graphene Nanoribbon, Carbon Nanotube, and Cu Interconnects

Physics-based equivalent circuit models are presented for armchair and zigzag graphene nanoribbons (GNRs), and their conductances have been benchmarked against those of carbon nanotubes and copper wires. Atomically thick GNRs with smooth edges can potentially have smaller resistances compared with copper wires with unity aspect ratios for widths below 8nm and stacks of non-interacting GNRs can have substantially smaller resistivities compared to Cu wires.