Table 2. Band Gaps of the Most Stable Derivatives.

derivative	graphene	G1OH	G2OH5	G3OH10	G4OH1	G5OH1	G6OH1
O/C (%)	0.00	1.39	2.78	4.17	5.56	6.94	8.33
band gap (eV)	0.00	0.00	0.07	0.00	0.27	0.000	1.06