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Dependence of D peak of edges on the angle of polarization after functionalization. The first three data points correspond to 4-nitrobenzene diazonium tetrafluoroborate and fourth corresponds to 3–5-dichlorophenyl diazonium tetrafluoroborate as the chemical moieties reacting with graphene.
| D/G (incident light parallel to graphene edge) |
D/G (incident light perpendicular to graphene edge) |
|---|---|
| 0.375 | 0.31 |
| 0.35 | 0.34 |
| 0.39 | 0.34 |
| 0.278 | 0.226 |
