Cathodoluminescence and photoluminescence properties of Dy doped La2CaB10O19 phosphor

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dc.contributor.authorAyvacikli M.
dc.contributor.authorKaynar Ü.H.
dc.contributor.authorKarabulut Y.
dc.contributor.authorGuinea J.G.
dc.contributor.authorDogan T.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:06:48Z
dc.date.available2024-07-22T08:06:48Z
dc.date.issued2020
dc.description.abstractIn this study, we report a detailed analysis of the photoluminescence (PL) and cathodoluminescence (CL) properties of La2CaB10O19 (LCB) doped with Dy ion. Dy doped LCB materials were successfully synthesized using a sol-gel combustion method. Dy doped LCB has the monoclinic structure with lattice parameters a = 11.02067 Å, b = 6.55755 Å, c = 9.10541 Å and α = γ = 90.00, and β = 91.49°. Under the excitation by a low voltage electron beam and pulse laser at 349 nm, the LCB:Dy3+ phosphor produces the characteristic emission bands of Dy3+ due to intra-configuration transitions of 4F9/2 → 6H15/2 (480 nm, blue), 4F9/2 → 6H13/2 (574 nm, yellow), 4F9/2 → 6H11/2 (662 nm, red) and 4F9/2 → 6H9/2 (752 nm, red). The concentration quenching phenomenon was observed in both CL and PL measurements and optimum doping concentration was estimated to be 2%. We suggest that the concentration quenching mechanism of intense yellow emission at 574 nm was attributed to dipole-dipole interaction for both CL and PL. © 2020 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.optmat.2020.110531
dc.identifier.issn09253467
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13707
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectCalcium compounds
dc.subjectCathodoluminescence
dc.subjectExcited states
dc.subjectLanthanum compounds
dc.subjectLaser excitation
dc.subjectPhosphors
dc.subjectPhotoluminescence
dc.subjectQuenching
dc.subjectSol-gels
dc.subjectCharacteristic emission
dc.subjectConcentration quenching
dc.subjectDipole dipole interactions
dc.subjectLow-voltage electron beams
dc.subjectMonoclinic structures
dc.subjectPhotoluminescence properties
dc.subjectSol-gel combustion method
dc.subjectYellow emissions
dc.subjectDysprosium
dc.titleCathodoluminescence and photoluminescence properties of Dy doped La2CaB10O19 phosphor
dc.typeArticle

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