Band structures and densities of states of F- and CF3-functionalized graphene sheets. ( a) Band structure and ( b) density of states of a F-functionalized graphene sheet. ( c) Band structure and ( d) density of states of a CF3-functionalized graphene sheet. The Fermi level is set at 0 eV.
Shen et al. Nanoscale Research Letters 2012 7:268 doi:10.1186/1556-276X-7-268