Optical Spectra of Carbon-Based Nanostructures

Carbon exists in many forms, including zero-dimensional fullerenes, one-dimensional nanotubes,two-dimensional graphene and three-dimensional graphite and diamond. Electronic and optical spectroscopy are important tools to analyse these structures and their properties.Here we present optical spectra from ab initio many-body perturbation theory for nanotubes and graphite. The data allow to understand details of excited states in these materials. This is of great significance for the interpretation of experimental spectroscopy and for the future manipulation and tuning of optical properties of materials