Optical properties of graphene nanoribbons: The role of many-body effects

By D. Prezzi, D. Varsano, A. Ruini, A. Marini, E. Molinari. 2007

220 citations recorded by the source corpus.

We investigate from first principles the optoelectronic properties of nanometer-sized armchair graphene nanoribbons GNRs. We show that many-body effects are essential to correctly describe both energy gaps and optical response. As a signature of the confined geometry, we observe strongly bound excitons dominating the optical spectra, with a clear family-dependent binding energy. Our results demonstrate that GNRs constitute one-dimensional nanostructures whose absorption and luminescence performance can be controlled by changing both family and edge termination.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/9827f2d795a63989590f88f63319a2460cb6f2db