Emerging photoluminescence from defective vanadium diselenide nanosheets

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buir.contributor.authorÖzbay, Ekmel
buir.contributor.authorOkyay, Ali Kemal
buir.contributor.authorGhobadi, Amir
buir.contributor.authorUlusoy-Ghobadi, Türkan Gamze
buir.contributor.authorOkyay, Ali Kemal
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage253en_US
dc.citation.issueNumber4en_US
dc.citation.spage244en_US
dc.citation.volumeNumber6en_US
dc.contributor.authorGhobadi, Amiren_US
dc.contributor.authorUlusoy-Ghobadi, Türkan Gamzeen_US
dc.contributor.authorOkyay, Ali Kemalen_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2019-02-21T16:08:01Z
dc.date.available2019-02-21T16:08:01Z
dc.date.issued2018en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractIn this paper, for the first time to our knowledge in the literature, we demonstrate photoluminescence from two-dimensional (2D) vanadium diselenide (VSe2) nanosheets (NSs). The preparation of these nanostructures is carried out with a combinational method based on nanosecond pulsed laser ablation (PLA) and chemical exfoliation. For this aim, VSe2 bulk is first ablated into nanoparticles (NPs) inside a water solution. Afterward, NPs are chemically exfoliated into NSs using lithium intercalation via ultrasonic treatment. Although VSe2 is a semimetal in its bulk form, its nanostructures show photo-responsive behavior, and it turns into a strongly luminescent material when it is separated into NSs. Based on the obtained results, the surface defects induced during the PLA process are the origin of this photoluminescence from NSs. Our findings illustrate that this new material can be a promising semiconductor for photovoltaic and light emitting diode applications.
dc.identifier.doi10.1364/PRJ.6.000244
dc.identifier.issn2327-9125
dc.identifier.urihttp://hdl.handle.net/11693/50394
dc.language.isoEnglish
dc.publisherOSA - The Optical Society
dc.relation.isversionofhttps://doi.org/10.1364/PRJ.6.000244
dc.source.titlePhotonics Researchen_US
dc.titleEmerging photoluminescence from defective vanadium diselenide nanosheetsen_US
dc.typeArticleen_US
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Nanotechnology Research Center (NANOTAM)
Department of Electrical and Electronics Engineering
Department of Physics
Institute of Materials Science and Nanotechnology (UNAM)