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Dependence of Raman and absorption spectra of stacked bilayer MoS2 on the stacking orientation

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dc.contributor.authorSeki Park-
dc.contributor.authorHyun Kim-
dc.contributor.authorMin Su Kim-
dc.contributor.authorGang Hee Han-
dc.contributor.authorJeongyong Kim-
dc.date.available2016-10-26T06:58:08Z-
dc.date.created2016-10-19-
dc.date.issued2016-09-
dc.identifier.issn1094-4087-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/2874-
dc.description.abstractStacked bilayer molybdenum disulfide (MoS2) exhibits interesting physical properties depending on the stacking orientation and interlayer coupling strength. Although optical properties, such as photoluminescence, Raman, and absorption properties, are largely dependent on the interlayer coupling of stacked bilayer MoS2, the origin of variations in these properties is not clearly understood. We performed comprehensive confocal Raman and absorption mapping measurements to determine the dependence of these spectra on the stacking orientation of bilayer MoS2. The results indicated that with 532-nm laser excitation, the Raman scattering intensity gradually increased upon increasing the stacking angle from 0° to 60°, whereas 458-nm laser excitation resulted in the opposite trend of decreasing Raman intensity with increasing stacking angle. This opposite behavior of the Raman intensity dependence was explained by the varying resonance condition between the Raman excitation wavelength and C exciton absorption energy of bilayer MoS2. Our work sheds light on the intriguing effect of the subtle interlayer interaction in stacked MoS2 bilayers on the resulting optical properties. © 2016 Optical Society of America-
dc.description.uri1-
dc.language영어-
dc.publisherOPTICAL SOC AMER-
dc.subjectNanomaterials-
dc.subjectSemiconductor materials-
dc.subjectConfocal microscopy-
dc.subjectRaman microscopy-
dc.subjectAbsorption.-
dc.titleDependence of Raman and absorption spectra of stacked bilayer MoS2 on the stacking orientation-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000387537600028-
dc.identifier.scopusid2-s2.0-84989922394-
dc.identifier.rimsid57501ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorSeki Park-
dc.contributor.affiliatedAuthorHyun Kim-
dc.contributor.affiliatedAuthorMin Su Kim-
dc.contributor.affiliatedAuthorGang Hee Han-
dc.contributor.affiliatedAuthorJeongyong Kim-
dc.identifier.doi10.1364/OE.24.021551-
dc.identifier.bibliographicCitationOPTICS EXPRESS, v.24, no.19, pp.21551 - 21559-
dc.citation.titleOPTICS EXPRESS-
dc.citation.volume24-
dc.citation.number19-
dc.citation.startPage21551-
dc.citation.endPage21559-
dc.date.scptcdate2018-10-01-
dc.description.wostc5-
dc.description.scptc5-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusCHEMICAL-VAPOR-DEPOSITION-
dc.subject.keywordPlusMONOLAYER MOLYBDENUM-DISULFIDE-
dc.subject.keywordPlusDER-WAALS HETEROSTRUCTURES-
dc.subject.keywordPlusGRAIN-BOUNDARIES-
dc.subject.keywordPlusPHOTOLUMINESCENCE-
dc.subject.keywordPlusTRANSITION-
dc.subject.keywordPlusEVOLUTION-
dc.subject.keywordPlusSPECTROSCOPY-
dc.subject.keywordPlusSCATTERING-
dc.subject.keywordPlusGROWTH-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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