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Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes

Micro-Raman spectra of single-walled carbon nanotubes in the range of two-phonon 2D bands are investigated in detail. The fine structure of two-phonon 2D bands in the low-temperature Raman spectra of the mixture and individual single-walled carbon nanotubes is considered as the reflection of structu...

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Autores principales: Stubrov, Yurii, Nikolenko, Andrii, Gubanov, Viktor, Strelchuk, Viktor
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700034/
https://www.ncbi.nlm.nih.gov/pubmed/26729220
http://dx.doi.org/10.1186/s11671-015-1213-8
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author Stubrov, Yurii
Nikolenko, Andrii
Gubanov, Viktor
Strelchuk, Viktor
author_facet Stubrov, Yurii
Nikolenko, Andrii
Gubanov, Viktor
Strelchuk, Viktor
author_sort Stubrov, Yurii
collection PubMed
description Micro-Raman spectra of single-walled carbon nanotubes in the range of two-phonon 2D bands are investigated in detail. The fine structure of two-phonon 2D bands in the low-temperature Raman spectra of the mixture and individual single-walled carbon nanotubes is considered as the reflection of structure of their π-electron zones. The dispersion behavior of 2D band fine structure components in the resonant Raman spectra of single-walled carbon nanotube mixture is studied depending on the energy of excitating photons. The role of incoming and outgoing electron-phonon resonances in the formation of 2D band fine structure in Raman spectra of single-walled carbon nanotubes is analyzed. The similarity of dispersion behavior of 2D phonon bands in single-walled carbon nanotubes, one-layer graphene, and bulk graphite is discussed.
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spelling pubmed-47000342016-01-12 Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes Stubrov, Yurii Nikolenko, Andrii Gubanov, Viktor Strelchuk, Viktor Nanoscale Res Lett Nano Express Micro-Raman spectra of single-walled carbon nanotubes in the range of two-phonon 2D bands are investigated in detail. The fine structure of two-phonon 2D bands in the low-temperature Raman spectra of the mixture and individual single-walled carbon nanotubes is considered as the reflection of structure of their π-electron zones. The dispersion behavior of 2D band fine structure components in the resonant Raman spectra of single-walled carbon nanotube mixture is studied depending on the energy of excitating photons. The role of incoming and outgoing electron-phonon resonances in the formation of 2D band fine structure in Raman spectra of single-walled carbon nanotubes is analyzed. The similarity of dispersion behavior of 2D phonon bands in single-walled carbon nanotubes, one-layer graphene, and bulk graphite is discussed. Springer US 2016-01-05 /pmc/articles/PMC4700034/ /pubmed/26729220 http://dx.doi.org/10.1186/s11671-015-1213-8 Text en © Stubrov et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Stubrov, Yurii
Nikolenko, Andrii
Gubanov, Viktor
Strelchuk, Viktor
Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title_full Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title_fullStr Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title_full_unstemmed Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title_short Manifestation of Structure of Electron Bands in Double-Resonant Raman Spectra of Single-Walled Carbon Nanotubes
title_sort manifestation of structure of electron bands in double-resonant raman spectra of single-walled carbon nanotubes
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700034/
https://www.ncbi.nlm.nih.gov/pubmed/26729220
http://dx.doi.org/10.1186/s11671-015-1213-8
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