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arXiv · 0706.0916

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

D. Prezzi·D. Varsano·A. Ruini·A. Marini·E. Molinari
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Abstract

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 1D nanostructures whose absorption and luminescence performance can be controlled by changing both family and edge termination.

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D. Prezzi, D. Varsano, A. Ruini, A. Marini, E. Molinari. 2007-06-06. Optical properties of graphene nanoribbons: the role of many-body effects. https://doi.org/10.1103/physrevb.77.041404

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