Electronic Transport Properties of Carbon-Nanotube Networks

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKetolainen, T.
dc.contributor.authorHavu, V.
dc.contributor.authorJónsson, E.
dc.contributor.authorPuska, M. J.
dc.contributor.departmentDepartment of Applied Physics
dc.date.accessioned2018-04-04T09:36:45Z
dc.date.available2018-04-04T09:36:45Z
dc.date.issued2018-03-15
dc.description.abstractThe conductivity of carbon-nanotube (CNT) networks can be improved markedly by doping with nitric acid. In the present work, CNTs and junctions of CNTs functionalized with NO3 molecules are investigated to understand the microscopic mechanism of nitric acid doping. According to our density-functional-theory band-structure calculations, there is charge transfer from the CNT to adsorbed molecules indicating p-type doping. The average doping efficiency of the NO3 molecules is higher if the NO3 molecules form complexes with water molecules. In addition to electron transport along individual CNTs, we also study electron transport between different types (metallic, semiconducting) of CNTs. Reflecting the differences in the electronic structures of semiconducting and metallic CNTs, we find that in addition to turning semiconducting CNTs metallic, doping further increases electron transport most efficiently along semiconducting CNTs as well as through the junctions between them.en
dc.description.versionPeer revieweden
dc.format.extent1-13
dc.format.mimetypeapplication/pdf
dc.identifier.citationKetolainen , T , Havu , V , Jónsson , E & Puska , M J 2018 , ' Electronic Transport Properties of Carbon-Nanotube Networks : The Effect of Nitrate Doping on Intratube and Intertube Conductances ' , Physical Review Applied , vol. 9 , no. 3 , 034010 , pp. 1-13 . https://doi.org/10.1103/PhysRevApplied.9.034010en
dc.identifier.doi10.1103/PhysRevApplied.9.034010
dc.identifier.issn2331-7019
dc.identifier.otherPURE UUID: 0623b348-08e5-4986-869b-f715571a9a49
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/0623b348-08e5-4986-869b-f715571a9a49
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85044118959&partnerID=8YFLogxK
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/18662084/PhysRevApplied.9.034010.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/30565
dc.identifier.urnURN:NBN:fi:aalto-201804042028
dc.language.isoenen
dc.relation.ispartofseriesPhysical Review Applieden
dc.relation.ispartofseriesVolume 9, issue 3en
dc.rightsopenAccessen
dc.titleElectronic Transport Properties of Carbon-Nanotube Networksen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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