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dc.contributor.authorAvramenko, Marina V.
dc.contributor.authorHokkanen, Matti J.
dc.contributor.authorSlabodyan, Yuri
dc.contributor.authorAhlskog, Markus
dc.contributor.authorLevshov, Dmitry I.
dc.date.accessioned2023-01-30T13:25:11Z
dc.date.available2023-01-30T13:25:11Z
dc.date.issued2022
dc.identifier.citationAvramenko, M. V., Hokkanen, M. J., Slabodyan, Y., Ahlskog, M., & Levshov, D. I. (2022). Role of Mechanical van der Waals Coupling in the G-Band Splitting of Individual Multiwall Carbon Nanotubes. <i>Journal of Physical Chemistry C</i>, <i>126</i>(37), 15759-15767. <a href="https://doi.org/10.1021/acs.jpcc.2c03590" target="_blank">https://doi.org/10.1021/acs.jpcc.2c03590</a>
dc.identifier.otherCONVID_155952295
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/85246
dc.description.abstractCharacterization of multiwalled carbon nanotubes (MWCNT) by Raman spectroscopy is challenging due to their structural complexity, inhomogeneity, and complicated interlayer van der Waals (vdW) interactions. These latter effects can be however well investigated in individual MWCNTs, prepared by the on-chip purification of arc-discharge (AD) MWCNT powder, combining atomic force microscopy, polarized Raman imaging, and spectroscopy. In this work, we reveal the inhomogeneity of the Raman signal from individual AD-MWCNTs and attribute it to the extraction of inner layers during the sonication stage of the dispersion procedure. We report the splitting of the Raman-active G-band, describing it in terms of the variation of interlayer mechanical vdW coupling as a function of diameter and interlayer distance in the probed AD-MWCNTs. Finally, we present a practical method for investigating the polarization behavior of MWCNTs with a nonuniform Raman response based on Raman mapping and advanced data fitting. Our work gives additional insights into the characterization of structurally nonuniform MWCNTs and allows distinguishing between these MWCNTs and 1D moiré crystals based on collapsed SWCNTs or studying telescopic 1D vdW heterostructures with Raman spectroscopy.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Chemical Society (ACS)
dc.relation.ispartofseriesJournal of Physical Chemistry C
dc.rightsIn Copyright
dc.titleRole of Mechanical van der Waals Coupling in the G-Band Splitting of Individual Multiwall Carbon Nanotubes
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202301301532
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineNanoscience Centerfi
dc.contributor.oppiaineNanoscience Centeren
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange15759-15767
dc.relation.issn1932-7447
dc.relation.numberinseries37
dc.relation.volume126
dc.type.versionacceptedVersion
dc.rights.copyright© 2022 American Chemical Society
dc.rights.accesslevelopenAccessfi
dc.subject.ysoRaman-spektroskopia
dc.subject.ysonanorakenteet
dc.subject.ysonanoputket
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p39298
jyx.subject.urihttp://www.yso.fi/onto/yso/p25315
jyx.subject.urihttp://www.yso.fi/onto/yso/p25661
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1021/acs.jpcc.2c03590
jyx.fundinginformationD.I.L. acknowledges financial support from the Russian Foundation for Basic Research (grant no. 18-29-19043mk) and the postdoctoral grant (12ZP720N) of the Fund for Scientific Research Flanders (FWO). M.J.H. acknowledges financial support from the University of Jyväskylä Graduate School.
dc.type.okmA1


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