A computational study on transport properties of square graphene nanoconstriction

Continuous scaling of device dimension allows the integration of an increasing number of transistors on a single chip. As its move beyond the Moore´s Law, carbon - based nanoelectronics such as Graphene emerges. The purpose of this study is to investigate the transport behaviour of Graphene Nanoconstriction (GNC) with square geometry. The transmission spectra and current - voltage (I-V) characteristic are simulated. From the simulation, markable change in I-V trend is achieved when the GNC dimension was vary where saturation region appear. The length of the constriction is found to have considerable effect to the transport properties. The result provides physical insight for better understanding the transport properties of GNC.