Preparation and characterization of Yttrium based luminescence phosphors

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dc.contributor.authorMuresan L.E.
dc.contributor.authorAyvacikli M.
dc.contributor.authorGarcia Guinea J.
dc.contributor.authorCanimoglu A.
dc.contributor.authorKarabulut Y.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:10:23Z
dc.date.available2024-07-22T08:10:23Z
dc.date.issued2017
dc.description.abstractCe doped Yttrium aluminate modified by replacing different molar part of aluminium or gallium (Y3Al5−xGaxO12) and Yttrium silicate phosphors activated with Ce and Tb (Y2SiO5:Ce3+,Tb3+) were synthesized by solid state reaction and a gel combustion method, respectively. X-ray diffraction and Scanning electron microscope (SEM) techniques are used to identify their structures and morphologies. Luminescence characteristics are measured and spectroscopic data confirm that Y2SiO5:Ce3+, Tb3+ phosphors can be effectively excited upon UV excitation light and X-ray irradiation, resulting in intense blue and green emissions, respectively. This energy transfer takes place by means of a non-radiative process inside Ce3+-Tb3+ clusters formed in the host matrix. Tb3+ doped Y2SiO5 yields both blue emission 5D3 → 7Fj (j = 3,4,5,6) and green emission 5D4 → 7FJ (J = 3,4,5,6) of Tb3+. Y3Al5−xGaxO12:Ce3+ phosphors exhibit a broad blue emission band originating from allowed 5d-4f transition of the Ce3+ ions under different excitation sources but the broad emission band shifts with increasing of Ga3+ content. This work presents a quantitative understanding of host material's on dopant's luminescence properties and thereby provides an optimization guideline, which is extremely demanding for the development of new luminescent materials. © 2017 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.optmat.2017.01.044
dc.identifier.issn09253467
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15213
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectAluminum compounds
dc.subjectCerium
dc.subjectCharacterization
dc.subjectDoping (additives)
dc.subjectEnergy transfer
dc.subjectLuminescence
dc.subjectPhosphors
dc.subjectRare earths
dc.subjectScanning electron microscopy
dc.subjectSodium Aluminate
dc.subjectSolid state reactions
dc.subjectTerbium compounds
dc.subjectX ray diffraction
dc.subjectYttrium aluminum garnet
dc.subjectBroad emission bands
dc.subjectGel-combustion method
dc.subjectLuminescence characteristics
dc.subjectLuminescence properties
dc.subjectLuminescent material
dc.subjectNonradiative process
dc.subjectRare earth doping
dc.subjectY2SiO5
dc.subjectCerium compounds
dc.titlePreparation and characterization of Yttrium based luminescence phosphors
dc.typeArticle

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