Inverse photoemission spectroscopy of multiwall carbon nanotubes

Detalhes bibliográficos
Autor(a) principal: Hevia,Samuel
Data de Publicação: 2006
Outros Autores: Ibáñez,Wladimir, Segura,Rodrigo, Häberle,Patricio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Physics
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600025
Resumo: Multiwall Carbon Nanotubes (MWCNTs) were synthesized by Chemical Vapor Deposition (CVD). Two different procedures were used to grow MWCNT films roughly, aligned in the direction normal to the SiO2/Si(111) substrate. Inverse Photoemission Spectroscopy measurements, on these samples, show the existence of resonances which could be traced back to a flat graphene sheet. The unoccupied valence band is fairly similar to that shown by graphite except by an additional intensity in the vicinity of the Fermi level. This resonance could be interpreted both as tubes tips end effects or van Hove singularities in the density of states.
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spelling Inverse photoemission spectroscopy of multiwall carbon nanotubesMultiwall carbon nanotubesInverse photoemissionMultiwall Carbon Nanotubes (MWCNTs) were synthesized by Chemical Vapor Deposition (CVD). Two different procedures were used to grow MWCNT films roughly, aligned in the direction normal to the SiO2/Si(111) substrate. Inverse Photoemission Spectroscopy measurements, on these samples, show the existence of resonances which could be traced back to a flat graphene sheet. The unoccupied valence band is fairly similar to that shown by graphite except by an additional intensity in the vicinity of the Fermi level. This resonance could be interpreted both as tubes tips end effects or van Hove singularities in the density of states.Sociedade Brasileira de Física2006-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600025Brazilian Journal of Physics v.36 n.3b 2006reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332006000600025info:eu-repo/semantics/openAccessHevia,SamuelIbáñez,WladimirSegura,RodrigoHäberle,Patricioeng2006-11-29T00:00:00Zoai:scielo:S0103-97332006000600025Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-11-29T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Inverse photoemission spectroscopy of multiwall carbon nanotubes
title Inverse photoemission spectroscopy of multiwall carbon nanotubes
spellingShingle Inverse photoemission spectroscopy of multiwall carbon nanotubes
Hevia,Samuel
Multiwall carbon nanotubes
Inverse photoemission
title_short Inverse photoemission spectroscopy of multiwall carbon nanotubes
title_full Inverse photoemission spectroscopy of multiwall carbon nanotubes
title_fullStr Inverse photoemission spectroscopy of multiwall carbon nanotubes
title_full_unstemmed Inverse photoemission spectroscopy of multiwall carbon nanotubes
title_sort Inverse photoemission spectroscopy of multiwall carbon nanotubes
author Hevia,Samuel
author_facet Hevia,Samuel
Ibáñez,Wladimir
Segura,Rodrigo
Häberle,Patricio
author_role author
author2 Ibáñez,Wladimir
Segura,Rodrigo
Häberle,Patricio
author2_role author
author
author
dc.contributor.author.fl_str_mv Hevia,Samuel
Ibáñez,Wladimir
Segura,Rodrigo
Häberle,Patricio
dc.subject.por.fl_str_mv Multiwall carbon nanotubes
Inverse photoemission
topic Multiwall carbon nanotubes
Inverse photoemission
description Multiwall Carbon Nanotubes (MWCNTs) were synthesized by Chemical Vapor Deposition (CVD). Two different procedures were used to grow MWCNT films roughly, aligned in the direction normal to the SiO2/Si(111) substrate. Inverse Photoemission Spectroscopy measurements, on these samples, show the existence of resonances which could be traced back to a flat graphene sheet. The unoccupied valence band is fairly similar to that shown by graphite except by an additional intensity in the vicinity of the Fermi level. This resonance could be interpreted both as tubes tips end effects or van Hove singularities in the density of states.
publishDate 2006
dc.date.none.fl_str_mv 2006-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600025
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600025
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-97332006000600025
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Brazilian Journal of Physics v.36 n.3b 2006
reponame:Brazilian Journal of Physics
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Brazilian Journal of Physics
collection Brazilian Journal of Physics
repository.name.fl_str_mv Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br
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