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dc.contributor.authorKarvonen Lasse
dc.contributor.authorSäynätjoki Antti
dc.contributor.authorHuttunen Mikko J
dc.contributor.authorAutere Anton
dc.contributor.authorAmirsolaimani Babak
dc.contributor.authorLi Shisheng
dc.contributor.authorNorwood Robert A
dc.contributor.authorPeyghambarian Nasser
dc.contributor.authorLipsanen Harri
dc.contributor.authorEda Goki
dc.contributor.authorKieu Khanh
dc.contributor.authorSun Zhipei
dc.date.accessioned2017-11-20T14:00:30Z
dc.date.available2017-11-20T14:00:30Z
dc.date.issued2017
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/4930
dc.description.abstractGrain boundaries have a major effect on the physical properties of two-dimensional layered materials. Therefore, it is important to develop simple, fast and sensitive characterization methods to visualize grain boundaries. Conventional Raman and photoluminescence methods have been used for detecting grain boundaries; however, these techniques are better suited for detection of grain boundaries with a large crystal axis rotation between neighbouring grains. Here we show rapid visualization of grain boundaries in chemical vapour deposited monolayer MoS2 samples with multiphoton microscopy. In contrast to Raman and photoluminescence imaging, third-harmonic generation microscopy provides excellent sensitivity and high speed for grain boundary visualization regardless of the degree of crystal axis rotation. We find that the contrast associated with grain boundaries in the third-harmonic imaging is considerably enhanced by the solvents commonly used in the transfer process of two-dimensional materials. Our results demonstrate that multiphoton imaging can be used for fast and sensitive characterization of two-dimensional materials.en
dc.language.isoENen
dc.publisherSpringer Natureen
dc.relation.ispartofseriesNature Communicationsen
dc.relation.urihttp://dx.doi.org/10.1038/ncomms15714en
dc.rightsCC BY http://creativecommons.org/licenses/by/4.0/en
dc.subjectImaging and sensingen
dc.subjectTwo-dimensional materialsen
dc.titleRapid visualization of grain boundaries in monolayer MoS2 by multiphoton microscopyen
dc.description.versionpublished versionen
dc.contributor.departmentDepartment of Physics and Mathematics, activitiesen
uef.solecris.id48005977en
dc.type.publicationinfo:eu-repo/semantics/articleen
dc.rights.accessrights© Authorsen
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/FP7-PEOPLE/631610/EU/Graphene Based Ultrafast Lasers/GrabFasten
dc.relation.doi10.1038/ncomms15714en
dc.description.reviewstatuspeerRevieweden
dc.relation.articlenumber15714en
dc.relation.issn2041-1723en
dc.relation.volume8en
dc.rights.accesslevelopenAccessen
dc.type.okmA1en
dc.type.versioninfo:eu-repo/semantics/publishedVersionen


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