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dc.contributor.authorFerrer Anglada, Núria
dc.contributor.authorAbiad Monge, Aida
dc.contributor.authorRoth, Segmar
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV
dc.date.accessioned2010-12-28T17:36:32Z
dc.date.available2010-12-28T17:36:32Z
dc.date.created2010-12
dc.date.issued2010-12
dc.identifier.citationFerrer, N.; Abiad, A.; Roth, S. Electron spin resonance on single-walled carbon nanotubes obtained from different sources. "Physica status solidi B. Basic solid state physics", Desembre 2010, vol. 247, núm. 11-12, p. 2823-2826.
dc.identifier.issn0370-1972
dc.identifier.urihttp://hdl.handle.net/2117/10797
dc.description.abstractWeused electron spin resonance (ESR) to analyze several kinds of single-walled carbon nanotubes (SWNTs) synthesized by different methods. We observed that ESR is a sensitive probe that can be used to observe major differences between samples of carbon nanotubes (CNTs), in relation to their proportion of magnetic catalysts, impurities or defects. We analyzed the ESR spectra of CNTs in the usual way, by three overlapping lines. We then, implemented a function to fit the spectra, which gave us the intensity, line width (DHPP), and resonance line position (g factor) of each component line. The asymmetric line, which is assigned to the conduction electrons, could be used as a fingerprint of CNT purity. However, this asymmetric line is not always observed, since the three ESR lines often overlap, particularly when there is a large amount of paramagnetic ions. We studied the ESR spectra for different samples and estimated their purity by comparing the resulting parameters with data obtained by Raman spectroscopy on the same samples.
dc.format.extent4 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshElectron paramagnetic resonance
dc.subject.lcshRaman spectroscopy
dc.titleElectron spin resonance on single-walled carbon nanotubes obtained from different sources
dc.typeArticle
dc.subject.lemacRessonància paramagnètica electrònica
dc.subject.lemacEspectroscòpia de Raman
dc.contributor.groupUniversitat Politècnica de Catalunya. CEMAD - Caracterització Elèctrica de Materials i Dispositius
dc.identifier.doi10.1002/pssb.201000231
dc.relation.publisherversionhttp://onlinelibrary.wiley.com/doi/10.1002/pssb.201000231/abstract;jsessionid=B823DCD84FA2D9D3031FC20A71A61623.d01t02
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac4468112
dc.description.versionPostprint (published version)
local.citation.authorFerrer, N.; Abiad, A.; Roth, S.
local.citation.publicationNamePhysica status solidi B. Basic solid state physics
local.citation.volume247
local.citation.number11-12
local.citation.startingPage2823
local.citation.endingPage2826


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