Abstract
In previous discussions we have considered the Raman spectra of specific carbon-based materials, such as diamond, graphite, and the biochar resulting from pyrolysis of biomass. We have shown how the spectra can be decomposed, according to the intended number of components and the considered line shapes. Here, we approach the Raman spectra of graphene and graphene oxide, to understand how many components are required to interpret the related fingerprints.