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Spectroscopic Visualization of Grain Boundaries of Monolayer Molybdenum Disulfide by Stacking Bilayers

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dc.contributor.authorSeki Park-
dc.contributor.authorMin Su Kim-
dc.contributor.authorHyun Kim-
dc.contributor.authorJubok Lee-
dc.contributor.authorGang Hee Han-
dc.contributor.authorJung, J.-
dc.contributor.authorJeongyong Kim-
dc.date.available2016-01-25T00:11:32Z-
dc.date.created2015-12-07-
dc.date.issued2015-11-
dc.identifier.issn1936-0851-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/2239-
dc.description.abstractPolycrystalline growth of molybdenum disulfide (MoS2) using chemical vapor deposition (CVD) methods is subject to the formation of grain boundaries (GBs), which have a large effect on the electrical and optical properties of MoS2-based optoelectronic devices. The identification of grains and GBs of CVD-grown monolayer MoS2 has traditionally required atomic resolution microscopy or nonlinear optical imaging techniques. Here, we present a simple spectroscopic method for visualizing GBs of polycrystalline monolayer MoS2 using stacked bilayers and mapping their indirect photoluminescence (PL) peak positions and Raman peak intensities. We were able to distinguish a GB between two MoS2 grains with tilt angles as small as 6° in their grain orientations and, based on the inspection of several GBs, found a simple empirical rule to predict the location of the GBs. In addition, the large number of twist angle domains traced through our facile spectroscopic mapping technique allowed us to identify a continuous evolution of the coupled structural and optical properties of bilayer MoS2 in the vicinity of the 0° and 60° commensuration angles which were explained by elastic deformation model of the MoS2 membranes. © 2015 American Chemical Society-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.subjectgrain boundary-
dc.subjectindirect band gap photoluminescence-
dc.subjectinterlayer coupling-
dc.subjectmonolayer molybdenum disulfide-
dc.subjectstacked bilayer-
dc.titleSpectroscopic Visualization of Grain Boundaries of Monolayer Molybdenum Disulfide by Stacking Bilayers-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000365464800052-
dc.identifier.scopusid2-s2.0-84948431923-
dc.identifier.rimsid21742ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorSeki Park-
dc.contributor.affiliatedAuthorMin Su Kim-
dc.contributor.affiliatedAuthorHyun Kim-
dc.contributor.affiliatedAuthorJubok Lee-
dc.contributor.affiliatedAuthorGang Hee Han-
dc.contributor.affiliatedAuthorJeongyong Kim-
dc.identifier.doi10.1021/acsnano.5b04977-
dc.identifier.bibliographicCitationACS NANO, v.9, no.11, pp.11042 - 11048-
dc.relation.isPartOfACS NANO-
dc.citation.titleACS NANO-
dc.citation.volume9-
dc.citation.number11-
dc.citation.startPage11042-
dc.citation.endPage11048-
dc.date.scptcdate2018-10-01-
dc.description.wostc23-
dc.description.scptc24-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryChemistry, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryNanoscience & Nanotechnology-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.subject.keywordPlusCHEMICAL-VAPOR-DEPOSITION-
dc.subject.keywordPlusHEXAGONAL BORON-NITRIDE-
dc.subject.keywordPlusGROWN MOS2-
dc.subject.keywordPlusGRAPHENE-
dc.subject.keywordPlusHETEROSTRUCTURES-
dc.subject.keywordPlusTRANSITION-
dc.subject.keywordPlusLAYERS-
dc.subject.keywordPlusPHOTOLUMINESCENCE-
dc.subject.keywordPlusPHOTOTRANSISTORS-
dc.subject.keywordPlusSAPPHIRE-
dc.subject.keywordAuthormonolayer molybdenum disulfide-
dc.subject.keywordAuthorgrain boundary-
dc.subject.keywordAuthorindirect band gap photoluminescence-
dc.subject.keywordAuthorstacked bilayer-
dc.subject.keywordAuthorinterlayer coupling-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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