Time Domain Analysis of Graphene Nanoribbon Interconnects Based on Transmission Line Model

Time domain analysis of multilayer graphene nanoribbon (MLGNR) interconnects, based on transmission line modeling (TLM) using a six-order linear parametric expression, has been presented for the first time. We have studied the effects of interconnect geometry along with its contact resistance on its step response and Nyquist stability. It is shown that by increasing interconnects dimensions their propagation delays are increased and accordingly the system becomes relatively more stable. In addition, we have compared time responses and Nyquist stabilities of MLGNR and SWCNT bundle interconnects, with the same external dimensions. The results show that under the same conditions, the propagation delays for MLGNR interconnects are smaller than those of SWCNT bundle interconnects are. Hence, SWCNT bundle interconnects are relatively more stable than their MLGNR rivals.