تقرير
Optical properties of graphene nanoribbons: the role of many-body effects
| العنوان: | Optical properties of graphene nanoribbons: the role of many-body effects |
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| المؤلفون: | Prezzi, D., Varsano, D., Ruini, A., Marini, A., Molinari, E. |
| سنة النشر: | 2007 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | 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. Comment: 5 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.77.041404 |
| URL الوصول: | http://arxiv.org/abs/0706.0916 |
| رقم الأكسشن: | edsarx.0706.0916 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.77.041404 |
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