Ultrafast non-radiative dynamics of atomically thin MoSe2

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dc.citation.articleNumber1745en_US
dc.citation.journalTitleNature Communicationsen_US
dc.citation.volumeNumber8en_US
dc.contributor.authorLin, Ming-Fuen_US
dc.contributor.authorKochat, Vidyaen_US
dc.contributor.authorKrishnamoorthy, Aravinden_US
dc.contributor.authorBassman, Lindsayen_US
dc.contributor.authorWeninger, Clemensen_US
dc.contributor.authorZheng, Qiangen_US
dc.contributor.authorZhang, Xiangen_US
dc.contributor.authorApte, Ameyen_US
dc.contributor.authorTiwary, Chandra Sekharen_US
dc.contributor.authorShen, Xiaozheen_US
dc.contributor.authorLi, Renkaien_US
dc.contributor.authorKalia, Rajiven_US
dc.contributor.authorAjayan, Pulickelen_US
dc.contributor.authorNakano, Aiichiroen_US
dc.contributor.authorVashishta, Priyaen_US
dc.contributor.authorShimojo, Fuyukien_US
dc.contributor.authorWang, Xijieen_US
dc.contributor.authorFritz, David M.en_US
dc.contributor.authorBergmann, Uween_US
dc.date.accessioned2017-12-18T18:19:41Zen_US
dc.date.available2017-12-18T18:19:41Zen_US
dc.date.issued2017en_US
dc.description.abstractPhoto-induced non-radiative energy dissipation is a potential pathway to induce structural-phase transitions in two-dimensional materials. For advancing this field, a quantitative understanding of real-time atomic motion and lattice temperature is required. However, this understanding has been incomplete due to a lack of suitable experimental techniques. Here, we use ultrafast electron diffraction to directly probe the subpicosecond conversion of photoenergy to lattice vibrations in a model bilayered semiconductor, molybdenum diselenide. We find that when creating a high charge carrier density, the energy is efficiently transferred to the lattice within one picosecond. First-principles nonadiabatic quantum molecular dynamics simulations reproduce the observed ultrafast increase in lattice temperature and the corresponding conversion of photoenergy to lattice vibrations. Nonadiabatic quantum simulations further suggest that a softening of vibrational modes in the excited state is involved in efficient and rapid energy transfer between the electronic system and the lattice.en_US
dc.identifier.citationLin, Ming-Fu, Kochat, Vidya, Krishnamoorthy, Aravind, et al.. "Ultrafast non-radiative dynamics of atomically thin MoSe2." <i>Nature Communications,</i> 8, (2017) Springer Nature: https://doi.org/10.1038/s41467-017-01844-2.en_US
dc.identifier.digitalUltrafast-non-radiative-dynamicsen_US
dc.identifier.doihttps://doi.org/10.1038/s41467-017-01844-2en_US
dc.identifier.urihttps://hdl.handle.net/1911/98888en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.titleUltrafast non-radiative dynamics of atomically thin MoSe2en_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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