Chiral-Selective Growth of Single-Walled Carbon Nanotubes on Lattice-Mismatched Epitaxial Cobalt Nanoparticles

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHe, Maoshuai
dc.contributor.authorJiang, Hua
dc.contributor.authorLiu, Bilu
dc.contributor.authorFedotov, Pavel V.
dc.contributor.authorChernov, Alexander I.
dc.contributor.authorObraztsova, Elena D.
dc.contributor.authorCavalca, Filippo
dc.contributor.authorWagner, Jakob B.
dc.contributor.authorHansen, Thomas W.
dc.contributor.authorAnoshkin, Ilya V.
dc.contributor.authorObraztsova, Ekaterina A.
dc.contributor.authorBelkin, Alexey V.
dc.contributor.authorSairanen, Emma
dc.contributor.authorNasibulin, Albert G.
dc.contributor.authorLehtonen, Juha
dc.contributor.authorKauppinen, Esko I.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-10-31T10:02:07Z
dc.date.available2015-10-31T10:02:07Z
dc.date.issued2013
dc.description.abstractControlling chirality in growth of single-walled carbon nanotubes (SWNTs) is important for exploiting their practical applications. For long it has been conceptually conceived that the structural control of SWNTs is potentially achievable by fabricating nanoparticle catalysts with proper structures on crystalline substrates via epitaxial growth techniques. Here, we have accomplished epitaxial formation of monometallic Co nanoparticles with well-defined crystal structure, and its use as a catalyst in the selective growth of SWNTs. Dynamics of Co nanoparticles formation and SWNT growth inside an atomic-resolution environmental transmission electron microscope at a low CO pressure was recorded. We achieved highly preferential growth of semiconducting SWNTs (~90%) with an exceptionally large population of (6, 5) tubes (53%) in an ambient CO atmosphere. Particularly, we also demonstrated high enrichment in (7, 6) and (9, 4) at a low growth temperature. These findings open new perspectives both for structural control of SWNTs and for elucidating the growth mechanisms.en
dc.description.versionPeer revieweden
dc.format.extent1-7
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHe, Maoshuai & Jiang, Hua & Liu, Bilu & Fedotov, Pavel V. & Chernov, Alexander I. & Obraztsova, Elena D. & Cavalca, Filippo & Wagner, Jakob B. & Hansen, Thomas W. & Anoshkin, Ilya V. & Obraztsova, Ekaterina A. & Belkin, Alexey V. & Sairanen, Emma & Nasibulin, Albert G. & Lehtonen, Juha & Kauppinen, Esko I. 2013. Chiral-Selective Growth of Single-Walled Carbon Nanotubes on Lattice-Mismatched Epitaxial Cobalt Nanoparticles. Scientific Reports. Volume 3. 1-7. ISSN 2045-2322 (printed). DOI: 10.1038/srep01460en
dc.identifier.doi10.1038/srep01460
dc.identifier.issn2045-2322 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/18240
dc.identifier.urnURN:NBN:fi:aalto-201510304813
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.relation.ispartofseriesScientific Reportsen
dc.relation.ispartofseriesVolume 3
dc.rights© 2013 Nature Publishing Group. This is the accepted version of the following article: He, Maoshuai & Jiang, Hua & Liu, Bilu & Fedotov, Pavel V. & Chernov, Alexander I. & Obraztsova, Elena D. & Cavalca, Filippo & Wagner, Jakob B. & Hansen, Thomas W. & Anoshkin, Ilya V. & Obraztsova, Ekaterina A. & Belkin, Alexey V. & Sairanen, Emma & Nasibulin, Albert G. & Lehtonen, Juha & Kauppinen, Esko I. 2013. Chiral-Selective Growth of Single-Walled Carbon Nanotubes on Lattice-Mismatched Epitaxial Cobalt Nanoparticles. Scientific Reports. Volume 3. 1-7. ISSN 2045-2322 (printed). DOI: 10.1038/srep01460, which has been published in final form at http://www.nature.com/articles/srep01460. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License (http://creativecommons.org/licenses/by-nc-nd/3.0/).en
dc.rights.holderNature Publishing Group
dc.subject.keywordSWNTsen
dc.subject.keywordgrowthen
dc.subject.keywordchiralityen
dc.subject.otherPhysicsen
dc.titleChiral-Selective Growth of Single-Walled Carbon Nanotubes on Lattice-Mismatched Epitaxial Cobalt Nanoparticlesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionFinal published versionen
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