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dc.contributor.authorShinde, Sachin M.ko
dc.contributor.authorDhakal, Krishna P.ko
dc.contributor.authorChen, Xiangko
dc.contributor.authorYun, Won Seokko
dc.contributor.authorLee, Jae Dongko
dc.contributor.authorKim, Hyun Minko
dc.contributor.authorAhn, Jong-Hyunko
dc.date.available2018-03-19T09:36:21Z-
dc.date.created2018-03-13-
dc.date.created2018-03-13-
dc.date.created2018-03-13-
dc.date.created2018-03-13-
dc.date.issued2018-02-
dc.identifier.citationNPG Asia Materials, v.10-
dc.identifier.issn1884-4057-
dc.identifier.urihttp://hdl.handle.net/20.500.11750/6102-
dc.description.abstractThe stacking order in layered transition-metal dichalcogenides (TMDCs) induces variations in the electronic and interlayer couplings. Therefore, controlling the stacking orientations when synthesizing TMDCs is desirable but remains a significant challenge. Here, we developed and showed the growth kinetics of different shapes and stacking orders in as-grown multi-stacked MoS2 crystals and revealed the stacking-order-induced interlayer separations, spin-orbit couplings (SOCs), and symmetry variations. Raman spectra in AA(A...)-stacked crystals demonstrated blueshifted out-of-plane (A(1g)) and in-plane (E-2g(1)) phonon frequencies, representing a greater reduction of the van der Waals gap compared to conventional AB(A.)-stacking. Our observations, together with first-principles calculations, revealed distinct excitonic phenomena due to various stacking orientations. As a result, the photoluminescence emission was improved in the AA(A...)-stacking configuration. Additionally, calculations showed that the valence-band maxima (VBM) at the K point of the AA(A...)-stacking configuration was separated into multiple sub-bands, indicating the presence of stronger SOC. We demonstrated that AA(A...)-stacking emitted an intense second-harmonic signal (SHG) as a fingerprint of the more augmented non-centrosymmetric stacking and enabled SOC-induced splitting at the VBM. We further highlighted the superiority of four-wave mixing-correlated SHG microscopy to quickly resolve the symmetries and multi-domain crystalline phases of differently shaped crystals. Our study based on crystals with different shapes and multiple stacking configurations provides a new avenue for development of future optoelectronic devices.-
dc.languageEnglish-
dc.publisherNature Publishing Group-
dc.subjectCHEMICAL-VAPOR-DEPOSITION-
dc.subjectBROKEN INVERSION SYMMETRY-
dc.subjectAUGMENTED-WAVE METHOD-
dc.subjectMOLYBDENUM-DISULFIDE-
dc.subjectCRYSTALS-
dc.subjectBILAYERS-
dc.subjectHETEROSTRUCTURES-
dc.subjectSIGNATURES-
dc.subjectGROWTH-
dc.subjectVALLEY-
dc.titleStacking-controllable interlayer coupling and symmetric configuration of multilayered MoS2-
dc.typeArticle-
dc.identifier.doi10.1038/am.2017.226-
dc.identifier.wosid000425291700003-
dc.type.localArticle(Overseas)-
dc.type.rimsART-
dc.description.journalClass1-
dc.contributor.localauthorLee, Jae Dong-
dc.contributor.localauthorKim, Hyun Min-
dc.contributor.nonIdAuthorShinde, Sachin M.-
dc.contributor.nonIdAuthorDhakal, Krishna P.-
dc.contributor.nonIdAuthorChen, Xiang-
dc.contributor.nonIdAuthorAhn, Jong-Hyun-
dc.identifier.citationVolume10-
dc.identifier.citationTitleNPG Asia Materials-
dc.type.journalArticleArticle-
dc.description.isOpenAccessY-


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