1. Tunable Band Gap of Functionalized Graphene K. Suggs, T. Ranjan, D
Tunable Band Gap of Functionalized Graphene K. Suggs, T. Ranjan, D. Minor, M. Roundtree, X-Q. Wang (Clark Atlanta University) (DMR-Award # )
Experimental studies have demonstrated that nitro-phenol functionalized graphene possesses remarkable electric and magnetic properties. A band gap opening has been observed, along with ferromagnetic and antiferromagnetic properties of the functionalized graphene. However, there exist intricate concentration dependence on the observed electronic and magnetic properties, which is poorly understood.
Figure caption: A systematic study of the concentration dependence of the electric and magnetic properties of functionalized graphene reveals a unique mapping to the functionalization patterns to the armchair nanoribbons. The finding provides insights into the interplay of magnetic and electronic properties of functionalized graphene.
Supported by the PREM project, researchers at Clark Atlanta University performed systematic simulation study of the concentration dependence of the electronic and magnetic properties. The simulation results reveal intriguing mutual exclusion of magnetic properties and the band gap opening, which are strongly connected to the concentration of the functionalization. Our findings point to an effective avenue to tunable electronic and magnetic properties of graphene.