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choi,sangjun
복잡계이론물리연구단
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Spectroscopic studies of atomic defects and bandgap renormalization in semiconducting monolayer transition metal dichalcogenides

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dc.contributor.authorJeong, TY-
dc.contributor.authorKim, H-
dc.contributor.authorSang-Jun Choi-
dc.contributor.authorWatanabe, K-
dc.contributor.authorTaniguchi, T-
dc.contributor.authorYee, KJ-
dc.contributor.authorKim, YS-
dc.contributor.authorJung, S-
dc.date.available2019-10-22T07:38:01Z-
dc.date.created2019-09-24-
dc.date.issued2019-08-
dc.identifier.issn2041-1723-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/6366-
dc.description.abstractAssessing atomic defect states and their ramifications on the electronic properties of two-dimensional van der Waals semiconducting transition metal dichalcogenides (SC-TMDs) is the primary task to expedite multi-disciplinary efforts in the promotion of next-generation electrical and optical device applications utilizing these low-dimensional materials. Here, with electron tunneling and optical spectroscopy measurements with density functional theory, we spectroscopically locate the mid-gap states from chalcogen-atom vacancies in four representative monolayer SC-TMDs-WS2, MoS2, WSe2, and MoSe2-, and carefully analyze the similarities and dissimilarities of the atomic defects in four distinctive materials regarding the physical origins of the missing chalcogen atoms and the implications to SC-mTMD properties. In addition, we address both quasiparticle and optical energy gaps of the SC-mTMD films and find out many-body interactions significantly enlarge the quasiparticle energy gaps and excitonic binding energies, when the semiconducting monolayers are encapsulated by non-interacting hexagonal boron nitride layers. © The Author(s) 2019-
dc.description.uri1-
dc.language영어-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleSpectroscopic studies of atomic defects and bandgap renormalization in semiconducting monolayer transition metal dichalcogenides-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000482398900027-
dc.identifier.scopusid2-s2.0-85071322514-
dc.identifier.rimsid69734-
dc.contributor.affiliatedAuthorSang-Jun Choi-
dc.identifier.doi10.1038/s41467-019-11751-3-
dc.identifier.bibliographicCitationNATURE COMMUNICATIONS, v.10, no.1, pp.3825-
dc.citation.titleNATURE COMMUNICATIONS-
dc.citation.volume10-
dc.citation.number1-
dc.citation.startPage3825-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusSINGLE-LAYER-
dc.subject.keywordPlusGAP-
dc.subject.keywordPlusEMITTERS-
dc.subject.keywordPlusGRAPHENE-
dc.subject.keywordPlusSTATES-
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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