Charged iodide in chains behind the highly efficient iodine doping in carbon nanotubes

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dc.citation.articleNumber064002en_US
dc.citation.issueNumber6en_US
dc.citation.journalTitlePhysical Review Materialsen_US
dc.citation.volumeNumber1en_US
dc.contributor.authorZubair, Ahmeden_US
dc.contributor.authorTristant, Damienen_US
dc.contributor.authorNie, Chunyangen_US
dc.contributor.authorTsentalovich, Dmitri E.en_US
dc.contributor.authorHeadrick, Robert J.en_US
dc.contributor.authorPasquali, Matteoen_US
dc.contributor.authorKono, Junichiroen_US
dc.contributor.authorMeunier, Vincenten_US
dc.contributor.authorFlahaut, Emmanuelen_US
dc.contributor.authorMonthioux, Marcen_US
dc.contributor.authorGerber, Iann C.en_US
dc.contributor.authorPuech, Pascalen_US
dc.date.accessioned2017-12-19T15:24:09Zen_US
dc.date.available2017-12-19T15:24:09Zen_US
dc.date.issued2017en_US
dc.description.abstractThe origin of highly efficient iodine doping of carbon nanotubes is not well understood. Relying on first-principles calculations, we found that iodine molecules (I2) in contact with a carbon nanotube interact to form monoiodide or/and polyiodide from two and three I2 as a result of removing electrons from the carbon nanotube (p-type doping). Charge per iodine atom for monoiodide ion or iodine atom at end of iodine chain is significantly higher than that for I2. This atomic analysis extends previous studies showing that polyiodide ions are the dominant dopants. Moreover, we observed isolated I atoms in atomically resolved transmission electron microscopy, which proves the production of monoiodide. Finally, using Raman spectroscopy, we quantitatively determined the doping level and estimated the number of conducting channels in high electrical conductivity fibers composed of iodine-doped double-wall carbon nanotubes.en_US
dc.identifier.citationZubair, Ahmed, Tristant, Damien, Nie, Chunyang, et al.. "Charged iodide in chains behind the highly efficient iodine doping in carbon nanotubes." <i>Physical Review Materials,</i> 1, no. 6 (2017) American Physical Society: https://doi.org/10.1103/PhysRevMaterials.1.064002.en_US
dc.identifier.digitalPhysRevMat-1-064002en_US
dc.identifier.doihttps://doi.org/10.1103/PhysRevMaterials.1.064002en_US
dc.identifier.urihttps://hdl.handle.net/1911/98894en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleCharged iodide in chains behind the highly efficient iodine doping in carbon nanotubesen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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