Fig. 6: Passivation properties of the graphene oxide seeding layer. | npj 2D Materials and Applications

Fig. 6: Passivation properties of the graphene oxide seeding layer.

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

Fig. 6

Raman spectra of UV/O3 exposed WS2 (normalized w.r.t Si 520 cm−1) a with graphene capping showing no loss in signal over 30 min UV/O3, whereas b uncapped WS2 shows signal quenching after 7.5 min. c Normalized XPS W4f spectra, showing graphene passivated WS2 exhibits limited increase in Woxide peak contributions i.e., layer damage compared to uncapped WS2.

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