Intertube Excitonic Coupling in Nanotube Van der Waals Heterostructures

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorBurdanova, Maria G.en_US
dc.contributor.authorLiu, Mingen_US
dc.contributor.authorStaniforth, Michaelen_US
dc.contributor.authorZheng, Yongjiaen_US
dc.contributor.authorXiang, Rongen_US
dc.contributor.authorChiashi, Shoheien_US
dc.contributor.authorAnisimov, Antonen_US
dc.contributor.authorKauppinen, Esko I.en_US
dc.contributor.authorMaruyama, Shigeoen_US
dc.contributor.authorLloyd-Hughes, Jamesen_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorNanoMaterialsen
dc.contributor.organizationMoscow Institute of Physics and Technologyen_US
dc.contributor.organizationUniversity of Tokyoen_US
dc.contributor.organizationUniversity of Warwicken_US
dc.contributor.organizationCanatu Oyen_US
dc.date.accessioned2021-10-06T06:40:26Z
dc.date.available2021-10-06T06:40:26Z
dc.date.issued2022-03-09en_US
dc.descriptionFunding Information: M.G.B. acknowledges support from the Global Education Program (Russia) for a Ph.D. scholarship. The UK authors acknowledge the EPSRC (UK) for funding under grant EP/N010825/1. Part of this work was supported by JSPS KAKENHI (grant numbers JP18H05329, JP19H02543, JP20H00220, and JP20KK0114) and by JST, CREST grant number JPMJCR20B5, Japan. Publisher Copyright: © 2021 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH
dc.description.abstractStrong intertube excitonic coupling is demonstrated in 1D van der Waals heterostructures by examining the ultrafast response of radial C/BN/MoS2 core/shell/skin nanotubes to femtosecond infrared light pulses. Remarkably, infrared excitation of excitons in the semiconducting carbon nanotubes (CNTs) creates a prominent excitonic response in the visible range from the MoS2 skin, even with infrared photons at energies well below the bandgap of MoS2. Via classical analogies and a quantum model of the light–matter interaction these findings are assigned to intertube excitonic correlations. Dipole–dipole Coulomb interactions in the coherent regime produce intertube biexcitons, which persist for tens of femtoseconds, while on longer timescales (>100 ps) hole tunneling—from the CNT core, through the BN tunnel barrier, to the MoS2 skin—creates intertube excitons. Charge transfer and dipole–dipole interactions thus play prominent roles on different timescales, and establish new possibilities for the multi-functional use of these new nanoscale coaxial cables.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationBurdanova, M G, Liu, M, Staniforth, M, Zheng, Y, Xiang, R, Chiashi, S, Anisimov, A, Kauppinen, E I, Maruyama, S & Lloyd-Hughes, J 2022, ' Intertube Excitonic Coupling in Nanotube Van der Waals Heterostructures ', Advanced Functional Materials, vol. 32, no. 11, 2104969 . https://doi.org/10.1002/adfm.202104969en
dc.identifier.doi10.1002/adfm.202104969en_US
dc.identifier.issn1616-301X
dc.identifier.issn1616-3028
dc.identifier.otherPURE UUID: 0640aa45-7c66-4dcf-b715-902bc263515een_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/0640aa45-7c66-4dcf-b715-902bc263515een_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85115232111&partnerID=8YFLogxKen_US
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dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/110305
dc.identifier.urnURN:NBN:fi:aalto-202110069500
dc.language.isoenen
dc.publisherWILEY-VCH VERLAG
dc.relation.ispartofseriesAdvanced Functional Materialsen
dc.rightsopenAccessen
dc.subject.keywordexcitonsen_US
dc.subject.keywordnanotubesen_US
dc.subject.keywordultrafast spectroscopyen_US
dc.subject.keywordvan der Waals heterostructuresen_US
dc.titleIntertube Excitonic Coupling in Nanotube Van der Waals Heterostructuresen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
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