Optical Polarizability of Zigzag Single-Walled Carbon Nanotubes Fullerene-Capped at One End and Covalently Bonded with Benzene Rings at the Other End

Ogloblya, O. V.; Hui, D.; Strzhemechny, Y. M.; Prylutskyy, Yu. I.

doi:https://doi.org/10.1155/2007/13617

Journal of Nanomaterials

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Research Article | Open Access

Volume 2007 | Article ID 013617 | https://doi.org/10.1155/2007/13617

Optical Polarizability of Zigzag Single-Walled Carbon Nanotubes Fullerene-Capped at One End and Covalently Bonded with Benzene Rings at the Other End

O. V. Ogloblya,¹D. Hui,²Y. M. Strzhemechny,³and Yu. I. Prylutskyy¹

Academic Editor: S. Mathur

Received26 Mar 2007

Accepted31 Jul 2007

Published08 Oct 2007

Abstract

We report on the results of numerical simulations for the linear optical polarizability of single-walled zigzag (9,0) carbon nanotubes with modified ends. The nanotubes of a variable length are fullerene-capped at one end and covalently bonded to a hydrophobic cluster of nine benzene rings at the other end. We investigate electronic and optical properties of such structures within a framework of the Su-Schrieffer-Heeger model. We demonstrated that the localized states in this system exhibit nonlinear characteristics of excited states. The nanotubes have a strongly oscillating dependence of their optical polarizability on the energy of incident light. Spectral features of the optical polarizability drop in intensity and shift towards higher energies with a decrease in the length of a nanotube or upon fullerene-uncapping. The length dependence is similar for the nanotubes without benzene rings, capped either at one or both ends. Potential applications are suggested for hydrophobic pollutant control in liquid-purification systems.

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Copyright

Copyright © 2007 O. V. Ogloblya et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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