(n,m)-Specific Absorption Cross Sections of Single-Walled Carbon Nanotubes Measured by Variance Spectroscopy

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dc.citation.firstpage6903en_US
dc.citation.issueNumber11en_US
dc.citation.journalTitleNano Lettersen_US
dc.citation.lastpage6909en_US
dc.citation.volumeNumber16en_US
dc.contributor.authorSanchez, Stephen R.en_US
dc.contributor.authorBachilo, Sergei M.en_US
dc.contributor.authorKadria-Vili, Yaraen_US
dc.contributor.authorLin, Ching-Weien_US
dc.contributor.authorWeisman, R. Bruceen_US
dc.contributor.orgSmalley-Curl Instituteen_US
dc.date.accessioned2016-12-01T17:29:09Zen_US
dc.date.available2016-12-01T17:29:09Zen_US
dc.date.issued2016en_US
dc.description.abstractA new method based on variance spectroscopy has enabled the determination of absolute absorption cross sections for the first electronic transition of 12 (n,m) structural species of semiconducting single-walled carbon nanotubes (SWCNTs). Spectrally resolved measurements of fluorescence variance in dilute bulk samples provided particle number concentrations of specific SWCNT species. These values were converted to carbon concentrations and correlated with resonant components in the absorbance spectrum to deduce (n,m)-specific absorption cross sections (absorptivities) for nanotubes ranging in diameter from 0.69 to 1.03 nm. The measured cross sections per atom tend to vary inversely with nanotube diameter and are slightly greater for structures ofﾠmod 1ﾠtype than forﾠmod 2. Directly measured and extrapolated values are now available to support quantitative analysis of SWCNT samples through absorption spectroscopy.en_US
dc.identifier.citationSanchez, Stephen R., Bachilo, Sergei M., Kadria-Vili, Yara, et al.. "(n,m)-Specific Absorption Cross Sections of Single-Walled Carbon Nanotubes Measured by Variance Spectroscopy." <i>Nano Letters,</i> 16, no. 11 (2016) American Chemical Society: 6903-6909. http://dx.doi.org/10.1021/acs.nanolett.6b02819.en_US
dc.identifier.doihttp://dx.doi.org/10.1021/acs.nanolett.6b02819en_US
dc.identifier.urihttps://hdl.handle.net/1911/92736en_US
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsThis is an open access article published under an ACS AuthorChoiceﾠLicense, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.en_US
dc.rights.urihttp://pubs.acs.org/page/policy/authorchoice_termsofuse.htmlen_US
dc.subject.keywordabsorption cross sectionen_US
dc.subject.keywordfluctuation spectroscopyen_US
dc.subject.keywordmolar absorptivityen_US
dc.subject.keywordquantitative analysisen_US
dc.subject.keywordSWCNTen_US
dc.subject.keywordSWIR spectroscopyen_US
dc.title(n,m)-Specific Absorption Cross Sections of Single-Walled Carbon Nanotubes Measured by Variance Spectroscopyen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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