Hidden correlation between absorption peaks in achiral carbon nanotubes and nanoribbons |
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| Authors: | V.A. Saroka A.L. Pushkarchuk S.A. Kuten M.E. Portnoi |
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| Affiliation: | 1. Institute for Nuclear Problems, Belarusian State University, Bobruiskaya 11, 220030 Minsk, Belarus;2. Institute of Physical Organic Chemistry, National Academy of Sciences, Surganov Street 13, 220072 Minsk, Belarus;3. School of Physics, University of Exeter, Stocker Road, EX4 4QL Exeter, United Kingdom |
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| Abstract: | In this paper we study the effect of absorption peak correlation in finite length carbon nanotubes and graphene nanoribbons. It is shown, in the orthogonal π-orbital tight-binding model with the nearest neighbor approximation, that if the ribbon width is a half of the tube circumference the effect takes place for all achiral ribbons (zigzag, armchair and bearded), and corresponding tubes, starting from lengths of about 30?nm. This correlation should be useful in designing nanoribbon-based optoelectronics devices fully integrated into a single layer of graphene. |
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| Keywords: | Advanced materials Graphene Quasi-one-dimensional structures Finite length Tight-binding model Cluster approximation Optical absorption Selection rules |
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