Figure 5

Surface catalytic reactions on monolayer graphene.
(a) Laser power-dependent GERS spectra of 4NBT under an illumination of 532 nm radiation. (b) Enlarged spectra of the spectra from 1000 cm−1 to 1650 cm−1 in Fig. 5(a).

Surface catalytic reactions on monolayer graphene.
(a) Laser power-dependent GERS spectra of 4NBT under an illumination of 532 nm radiation. (b) Enlarged spectra of the spectra from 1000 cm−1 to 1650 cm−1 in Fig. 5(a).