Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes

A double-walled carbon nanotube (DWNT), a coaxial composite of two single-walled carbon nanotubes (SWNT), provides a unique model to study interactions between the two constituent SWNTs. Combining high resolution transmission electron microscopy (HRTEM), electron diffraction (ED), and resonant Raman...

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Autores: Levshov, D.I., Michel, T., Arenal, R., Tran, H.N., Than, T.X., Paillet, M., Yuzyuk, Y.I., Sauvajol, J.L.
Formato: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2015
País:España
Recursos:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:56108
Acesso em linha:http://zaguan.unizar.es/record/56108
Access Level:acceso abierto
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spelling Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon NanotubesLevshov, D.I.Michel, T.Arenal, R.Tran, H.N.Than, T.X.Paillet, M.Yuzyuk, Y.I.Sauvajol, J.L.A double-walled carbon nanotube (DWNT), a coaxial composite of two single-walled carbon nanotubes (SWNT), provides a unique model to study interactions between the two constituent SWNTs. Combining high resolution transmission electron microscopy (HRTEM), electron diffraction (ED), and resonant Raman scattering (RRS) experiments on the same individual suspended DWNT is the ultimate way to relate unambiguously its atomic structure, defined by the chiral indices of the coaxial outer/inner SWNTs, and its Raman-active vibration modes. This approach is used to investigate the intertube distance dependence of the G-modes of individual index-identified DWNTs composed of two semiconducting SWNTs. We state the main features of the dependence of the G-mode frequencies on the distance between the inner and outer layers: (i) When the interlayer distance is larger than the nominal van der Waals distance (close to 0.34 nm), a downshift of the inner-layer G-modes with respect to the G-modes in the equivalent SWNTs is measured. (ii) The amplitude of the downshift depends on the interlayer distance, or in other words, on the negative pressure felt by the inner layer in DWNT. (iii) No shift is observed for an intertube distance close to 0.34 nm.2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfhttp://zaguan.unizar.es/record/56108reponame:Zaguán. Repositorio Digital de la Universidad de Zaragozainstname:Universidad de ZaragozaInglésinfo:eu-repo/grantAgreement/ES/MINECO/FIS2013-46159-C3-3-Pinfo:eu-repo/grantAgreement/EC/FP7/604391info:eu-repo/grantAgreement/EC/FP7/312483info:eu-repo/semantics/openAccessoai:zaguan.unizar.es:561082026-05-29T13:59:51Z
dc.title.none.fl_str_mv Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
title Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
spellingShingle Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
Levshov, D.I.
title_short Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
title_full Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
title_fullStr Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
title_full_unstemmed Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
title_sort Interlayer Dependence of G-Modes in Semiconducting Double-Walled Carbon Nanotubes
dc.creator.none.fl_str_mv Levshov, D.I.
Michel, T.
Arenal, R.
Tran, H.N.
Than, T.X.
Paillet, M.
Yuzyuk, Y.I.
Sauvajol, J.L.
author Levshov, D.I.
author_facet Levshov, D.I.
Michel, T.
Arenal, R.
Tran, H.N.
Than, T.X.
Paillet, M.
Yuzyuk, Y.I.
Sauvajol, J.L.
author_role author
author2 Michel, T.
Arenal, R.
Tran, H.N.
Than, T.X.
Paillet, M.
Yuzyuk, Y.I.
Sauvajol, J.L.
author2_role author
author
author
author
author
author
author
description A double-walled carbon nanotube (DWNT), a coaxial composite of two single-walled carbon nanotubes (SWNT), provides a unique model to study interactions between the two constituent SWNTs. Combining high resolution transmission electron microscopy (HRTEM), electron diffraction (ED), and resonant Raman scattering (RRS) experiments on the same individual suspended DWNT is the ultimate way to relate unambiguously its atomic structure, defined by the chiral indices of the coaxial outer/inner SWNTs, and its Raman-active vibration modes. This approach is used to investigate the intertube distance dependence of the G-modes of individual index-identified DWNTs composed of two semiconducting SWNTs. We state the main features of the dependence of the G-mode frequencies on the distance between the inner and outer layers: (i) When the interlayer distance is larger than the nominal van der Waals distance (close to 0.34 nm), a downshift of the inner-layer G-modes with respect to the G-modes in the equivalent SWNTs is measured. (ii) The amplitude of the downshift depends on the interlayer distance, or in other words, on the negative pressure felt by the inner layer in DWNT. (iii) No shift is observed for an intertube distance close to 0.34 nm.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
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status_str submittedVersion
dc.identifier.none.fl_str_mv http://zaguan.unizar.es/record/56108
url http://zaguan.unizar.es/record/56108
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/ES/MINECO/FIS2013-46159-C3-3-P
info:eu-repo/grantAgreement/EC/FP7/604391
info:eu-repo/grantAgreement/EC/FP7/312483
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv
publisher.none.fl_str_mv
dc.source.none.fl_str_mv reponame:Zaguán. Repositorio Digital de la Universidad de Zaragoza
instname:Universidad de Zaragoza
instname_str Universidad de Zaragoza
reponame_str Zaguán. Repositorio Digital de la Universidad de Zaragoza
collection Zaguán. Repositorio Digital de la Universidad de Zaragoza
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