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dc.contributor.authorYahya, I
dc.contributor.authorBonaccorso, F
dc.contributor.authorClowes, SK
dc.contributor.authorFerrari, Andrea
dc.contributor.authorSilva, SRP
dc.date.accessioned2018-10-10T05:18:41Z
dc.date.available2018-10-10T05:18:41Z
dc.date.issued2015-11
dc.identifier.issn0008-6223
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/283420
dc.description.abstractPost-synthesis separation between metallic (m-SWNTs) and semiconducting (s-SWNTs) singlewall carbon nanotubes (SWNTs) is remaining a challenging process for the reliable fabrication of high performance electronic devices. Gel agarose chromatography is emerging as an efficient and large scale separation technique. However, the full (100%) separation of m-SWNTs and s-SWNTs has not been reached yet, mainly due to the lack of understanding of the separation mechanism. Here we study the temperature effect on the separation via gel agarose chromatography by varying the separation process temperatures between 6C and 50C, for four different SWNT sources. Exploiting the gel agarose micro-beads filtration technique we achieved up to 70% m-SWNTs and more than 90% s-SWNTs, independent of the source material. The process is temperature dependent, with improved yields up to 95% for s-SWNT (HiPco) at 6C. Temperature affects the sodium dodecyl sulfate SDS surfactant-micelle distribution along the SWNT sidewalls, thus helping to act as an aid in the sorting of SWNTs by electronic type. The sorted SWNTs are then used to fabricate transistors with very low OFF-currents (10^-13 A), high ON/OFF current ratio (>10^6) and improved charge carriers mobility.
dc.publisherElsevier BV
dc.titleTemperature dependent separation of metallic and semiconducting carbon nanotubes using gel agarose chromatography
dc.typeArticle
prism.endingPage594
prism.publicationDate2015
prism.publicationNameCarbon
prism.startingPage574
prism.volume93
dc.identifier.doi10.17863/CAM.30787
rioxxterms.versionofrecord10.1016/j.carbon.2015.05.036
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2015-08-08
dc.contributor.orcidFerrari, Andrea [0000-0003-0907-9993]
dc.identifier.eissn1873-3891
dc.publisher.urlhttp://dx.doi.org/10.1016/j.carbon.2015.05.036
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/K01711X/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/K017144/1)
pubs.funder-project-idEuropean Commission (604391)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L016087/1)
rioxxterms.freetoread.startdate2016-08-08


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