Modeling and performance analysis of F-functionalized AGNR reconfigurable logic gates

Abstract

The paper investigated F-functionalized armchair graphene nanoribbons using the density functional theory. The band structures and densities of states of all AGNR configurations demonstrate the semiconducting nature and can be tuned by taking F-passivation at different edges. Based on binding energy calculations, F@edge_100% AGNR found the most stable configuration compared with other AGNRs. F@edge_100% AGNR device is proposed for nanoscale reconfigurable logic gates. Further comprehensive analysis is done for performance parameters i.e. quantum propagation delay (τp), switching energy (Esw), power dissipation (Pd) of the proposed device. F@edge_100% AGNR confirms the less device area, low propagation delay and lower switching energy. Further in F@edge_100% AGNR device, speed is high and power consumption becomes low as compared to CMOS technology. The proposed device shows the potential for futuristic nanoscale low power and high speed reconfigurable digital logic gates.