Comprehensive study of photoluminescence and cathodoluminescence of Eu and Tb doped Mg2SiO4 prepared via a solid-state reaction technique

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dc.contributor.authorUcar Z.G.P.
dc.contributor.authorAkca S.
dc.contributor.authorDogan T.
dc.contributor.authorHalefoglu Y.Z.
dc.contributor.authorKaynar U.H.
dc.contributor.authorAyvacikli M.
dc.contributor.authorGuinea J.G.
dc.contributor.authorTopaksu M.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:07:42Z
dc.date.available2024-07-22T08:07:42Z
dc.date.issued2020
dc.description.abstractWe report narrow-band green-red emitting Mg2SiO4 phosphors successfully synthesized through solid-state reaction method, and the cathodoluminescence (CL) and photoluminescence (PL) properties of the samples were investigated in detail. Under electron beam and 275 nm excitation, Mg2SiO4 phosphors doped with various Eu3+ and Tb3+ concentrations in the range of 1 mol % up to 10 mol % exhibit typical green and red emissions, respectively. Tb doped samples were efficiently excited by a low voltage electron beam and UV light, yielding several emission peaks between 370 and 760 nm, and produced a bright green light peaking at 541 nm due to the 5D4 →7F5 transition. Eu3+ doped samples exhibited CL and PL emission spectra from 5D0 to 7Fj manifold transitions of Eu3+. A strong red-light emission peaking at 610 nm also supports the incorporation of Eu3+ ions. A concentration quenching effect was observed and discussed for both phosphors. The optimal doping concentration of Eu3+ and Tb3+ doped phosphors was 7 mol %. In view of the outstanding performance in the PL and CL, the Mg2SiO4:Eu3+, Tb3+ can be considered as a promising green and red phosphor in solid-state lighting applications. © 2020 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.optmat.2020.109698
dc.identifier.issn09253467
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/14070
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectCathodoluminescence
dc.subjectElectron beams
dc.subjectEmission spectroscopy
dc.subjectEuropium
dc.subjectLighting
dc.subjectPhosphors
dc.subjectPhotoluminescence
dc.subjectRare earths
dc.subjectSilicon compounds
dc.subjectSolid state reactions
dc.subjectTerbium
dc.subjectConcentration quenching effect
dc.subjectGreen and red phosphors
dc.subjectLow-voltage electron beams
dc.subjectMg2SiO4
dc.subjectPhotoluminescence properties
dc.subjectSolid state reaction method
dc.subjectSolid-state lighting application
dc.subjectSolid-state reaction techniques
dc.subjectMagnesium compounds
dc.titleComprehensive study of photoluminescence and cathodoluminescence of Eu and Tb doped Mg2SiO4 prepared via a solid-state reaction technique
dc.typeArticle

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