Figure 1
From: Band Gap Control in Bilayer Graphene by Co-Doping with B-N Pairs

Electronic band structure of AB stacked bilayer graphene: (a) undoped, (b) doped with one N atom in one layer, (c) doped with one B atom in one layer, (d) doped with one N atom in one layer and one B atom in the other, and (e) doped with one B-N pair in one layer.