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Article: Many-Body Effect on Optical Properties of Monolayer Molybdenum Diselenide

TitleMany-Body Effect on Optical Properties of Monolayer Molybdenum Diselenide
Authors
Xiao, KYan, TLIU, QYang, SKan, CDuan, RLiu, ZCui, X
Issue Date2021
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/loi/jpclcd
Citation
The Journal of Physical Chemistry Letters, 2021, v. 12 n. 10, p. 2555-2561 How to Cite?
DOI: http://dx.doi.org/10.1021/acs.jpclett.1c00320
AbstractExcitons in monolayer transition metal dichalcogenides (TMDs) provide a paradigm of composite Boson in a two-dimensional system. This Letter reports a photoluminescence and reflectance study of excitons in monolayer molybdenum diselenide (MoSe2) with electrostatic gating. We observe the repulsive and attractive Fermi polaron modes of the band edge exciton, its excited state, and the spin-off excitons, which the simple three-particle trion model is insufficient to explain. The contrasting energy shift between the exciton and charge-bound excitons (repulsive and attractive polaron modes) and the remarkably different gate dependence of the polaron energy splitting between the ground state and the excited state excitons unambiguously support the Fermi polaron picture for excitons in monolayer TMDs.
Persistent Identifierhttp://hdl.handle.net/10722/299112
ISSN
1948-7185
2021 Impact Factor: 6.888
2020 SCImago Journal Rankings: 2.563
ISI Accession Number ID
WOS:000631413800011

 

DC FieldValueLanguage
dc.contributor.authorXiao, K-
dc.contributor.authorYan, T-
dc.contributor.authorLIU, Q-
dc.contributor.authorYang, S-
dc.contributor.authorKan, C-
dc.contributor.authorDuan, R-
dc.contributor.authorLiu, Z-
dc.contributor.authorCui, X-
dc.date.accessioned2021-04-28T02:26:20Z-
dc.date.available2021-04-28T02:26:20Z-
dc.date.issued2021-
dc.identifier.citationThe Journal of Physical Chemistry Letters, 2021, v. 12 n. 10, p. 2555-2561-
dc.identifier.issn1948-7185-
dc.identifier.urihttp://hdl.handle.net/10722/299112-
dc.description.abstractExcitons in monolayer transition metal dichalcogenides (TMDs) provide a paradigm of composite Boson in a two-dimensional system. This Letter reports a photoluminescence and reflectance study of excitons in monolayer molybdenum diselenide (MoSe2) with electrostatic gating. We observe the repulsive and attractive Fermi polaron modes of the band edge exciton, its excited state, and the spin-off excitons, which the simple three-particle trion model is insufficient to explain. The contrasting energy shift between the exciton and charge-bound excitons (repulsive and attractive polaron modes) and the remarkably different gate dependence of the polaron energy splitting between the ground state and the excited state excitons unambiguously support the Fermi polaron picture for excitons in monolayer TMDs.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/loi/jpclcd-
dc.relation.ispartofThe Journal of Physical Chemistry Letters-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.titleMany-Body Effect on Optical Properties of Monolayer Molybdenum Diselenide-
dc.typeArticle-
dc.identifier.emailXiao, K: kexiao@hku.hk-
dc.identifier.emailCui, X: xdcui@hku.hk-
dc.identifier.authorityCui, X=rp00689-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.jpclett.1c00320-
dc.identifier.pmid33683894-
dc.identifier.scopuseid_2-s2.0-85103228562-
dc.identifier.hkuros322172-
dc.identifier.volume12-
dc.identifier.issue10-
dc.identifier.spage2555-
dc.identifier.epage2561-
dc.identifier.isiWOS:000631413800011-
dc.publisher.placeUnited States-

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