Fig. 2: Dry UV/O3 functionalization of graphene. | npj 2D Materials and Applications

Fig. 2: Dry UV/O3 functionalization of graphene.

From: Enhancing dielectric passivation on monolayer WS2 via a sacrificial graphene oxide seeding layer

Fig. 2

a Effect of UV/O3 oxidation on the wettability of cleaned graphene, showing an increase in hydrophilicity. b Raman mapping before, c after 3 s H2 DPS treatment and d after 4.5 min UV/O3 exposure, showing a significant increase in ID/IG ratio i.e., graphene functionalization. e Normalized XPS C1s spectra measured before and after 6 min UV/O3 exposure showing an increase in shoulder peak ~286.5 eV i.e., C-O single bond, basal plane functionalities.

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