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Article: Anomalous lattice vibrations of monolayer MoS2 probed by ultraviolet Raman scattering

TitleAnomalous lattice vibrations of monolayer MoS<inf>2</inf> probed by ultraviolet Raman scattering
Authors
Issue Date2015
Citation
Physical Chemistry Chemical Physics, 2015, v. 17, n. 22, p. 14561-14568 How to Cite?
AbstractWe present a comprehensive Raman scattering study of monolayer MoS with increasing laser excitation energies ranging from the near-infrared to the deep-ultraviolet. The Raman scattering intensities from the second-order phonon modes are revealed to be enhanced anomalously by only the ultraviolet excitation wavelength 354 nm. We demonstrate theoretically that such resonant behavior arises from a strong optical absorption that forms near the Γ point and of the band structure and an inter-valley resonant electronic scattering by the M-point phonons. These results advance our understanding of the double resonance Raman scattering process in low-dimensional semiconducting nanomaterials and provide a foundation for the technological development of monolayer MoS in the ultraviolet frequency range. 2 2
Persistent Identifierhttp://hdl.handle.net/10722/298118
ISSN
2023 Impact Factor: 2.9
2023 SCImago Journal Rankings: 0.721
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLiu, Hsiang Lin-
dc.contributor.authorGuo, Huaihong-
dc.contributor.authorYang, Teng-
dc.contributor.authorZhang, Zhidong-
dc.contributor.authorKumamoto, Yasuaki-
dc.contributor.authorShen, Chih Chiang-
dc.contributor.authorHsu, Yu Te-
dc.contributor.authorLi, Lain Jong-
dc.contributor.authorSaito, Riichiro-
dc.contributor.authorKawata, Satoshi-
dc.date.accessioned2021-04-08T03:07:43Z-
dc.date.available2021-04-08T03:07:43Z-
dc.date.issued2015-
dc.identifier.citationPhysical Chemistry Chemical Physics, 2015, v. 17, n. 22, p. 14561-14568-
dc.identifier.issn1463-9076-
dc.identifier.urihttp://hdl.handle.net/10722/298118-
dc.description.abstractWe present a comprehensive Raman scattering study of monolayer MoS with increasing laser excitation energies ranging from the near-infrared to the deep-ultraviolet. The Raman scattering intensities from the second-order phonon modes are revealed to be enhanced anomalously by only the ultraviolet excitation wavelength 354 nm. We demonstrate theoretically that such resonant behavior arises from a strong optical absorption that forms near the Γ point and of the band structure and an inter-valley resonant electronic scattering by the M-point phonons. These results advance our understanding of the double resonance Raman scattering process in low-dimensional semiconducting nanomaterials and provide a foundation for the technological development of monolayer MoS in the ultraviolet frequency range. 2 2-
dc.languageeng-
dc.relation.ispartofPhysical Chemistry Chemical Physics-
dc.titleAnomalous lattice vibrations of monolayer MoS<inf>2</inf> probed by ultraviolet Raman scattering-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/c5cp01347j-
dc.identifier.scopuseid_2-s2.0-84930678739-
dc.identifier.volume17-
dc.identifier.issue22-
dc.identifier.spage14561-
dc.identifier.epage14568-
dc.identifier.isiWOS:000355633400032-
dc.identifier.issnl1463-9076-

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