Please use this identifier to cite or link to this item:
https://physrep.ff.bg.ac.rs/handle/123456789/40
Title: | Strain engineering of electronic band structure and optical absorption spectra of helically coiled carbon nanotubes | Authors: | Dmitrović, Saša Popović, Zoran Damnjanović, M. Milošević, Ivanka |
Keywords: | Band gap engineering;Electronic band structure;Helically coiled carbon nanotubes;Optical conductivity;Tensile strain | Issue Date: | 1-Feb-2013 | Journal: | Journal of Nanoelectronics and Optoelectronics | Abstract: | Detailed theoretical study of the electro-optical properties of helically coiled carbon nanotubes (CNTs) is presented. Electronic band structure and density of states as well as optical absorption spectra are calculated for fully relaxed structures and for the structures subjected to the tensile strain. It is shown that according to the conducting properties helically coiled CNTs can be classified as quasi-metals, semi-metals or semiconductors (with direct or indirect band gap). Under the strain band gap narrowing and ultimate band gap closing is predicted, while no change of the conducting properties of the metallic tubes is expected, according to our calculations. As for the optical absorption the situation is quite the opposite: metallic helically coiled CNTs response substantially in contrast to the semiconducting tubes. Copyright © 2013 American Scientific Publishers. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/40 | ISSN: | 1555-130X | DOI: | 10.1166/jno.2013.1456 |
Appears in Collections: | Journal Article |
Show full item record
SCOPUSTM
Citations
2
checked on Dec 22, 2024
Page view(s)
26
checked on Dec 24, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.