Hidden correlation between absorption peaks in achiral carbon nanotubes and nanoribbons

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 t...

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Bibliographic Details
Published in:Journal of Saudi Chemical Society 2018-12, Vol.22 (8), p.985-992
Main Authors: Saroka, V.A., Pushkarchuk, A.L., Kuten, S.A., Portnoi, M.E.
Format: Article
Language:English
Subjects:
Advanced materials
Cluster approximation
Finite length
Graphene
Optical absorption
Quasi-one-dimensional structures
Selection rules
Tight-binding model
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Summary: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.
ISSN:1319-6103
DOI:10.1016/j.jscs.2018.03.001