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

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dc.citation.articleNumber064002
dc.citation.issueNumber6
dc.citation.journalTitlePhysical Review Materials
dc.citation.volumeNumber1
dc.contributor.authorZubair, Ahmed
dc.contributor.authorTristant, Damien
dc.contributor.authorNie, Chunyang
dc.contributor.authorTsentalovich, Dmitri E.
dc.contributor.authorHeadrick, Robert J.
dc.contributor.authorPasquali, Matteo
dc.contributor.authorKono, Junichiro
dc.contributor.authorMeunier, Vincent
dc.contributor.authorFlahaut, Emmanuel
dc.contributor.authorMonthioux, Marc
dc.contributor.authorGerber, Iann C.
dc.contributor.authorPuech, Pascal
dc.date.accessioned2017-12-19T15:24:09Z
dc.date.available2017-12-19T15:24:09Z
dc.date.issued2017
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.
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.
dc.identifier.digitalPhysRevMat-1-064002
dc.identifier.doihttps://doi.org/10.1103/PhysRevMaterials.1.064002
dc.identifier.urihttps://hdl.handle.net/1911/98894
dc.language.isoeng
dc.publisherAmerican Physical Society
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.
dc.titleCharged iodide in chains behind the highly efficient iodine doping in carbon nanotubes
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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