Figure 2: Characterization of the prGO film.
From: Partially reduced graphene oxide based FRET on fiber-optic interferometer for biochemical detection
(a), Raman scattering spectra of the GO (blue curve) and the prGO (red curve), high D peak and G peak indicate that the prGO film is of μm level thickness. (b), XPS curves of the GO and prGO. Carbon atoms in: C-C/C = C key (red, with peak at 284.6 eV), C-O key (yellow, with peak at 286.5 eV), C = O key (green, peak at 287.6 eV), O-C = O key (blue, peak at 289 eV). (c), XPS curves of rGO samples, reduced from GO (black curve) from 0 ~ 60 min. The prGO film in this work is moderately reduced (red curve). Inset: C/O ratio of the rGO samples.
