Structural and luminescence effects of Ga co-doping on Ce-doped yttrium aluminate based phosphors

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dc.contributor.authorAyvacikli, M.
dc.contributor.authorCanimoglu, A.
dc.contributor.authorMuresan, L. E.
dc.contributor.authorTudoran, L. Barbu
dc.contributor.authorGarcia Guinea, J.
dc.contributor.authorKarabulut, Y.
dc.contributor.authorJorge, A.
dc.contributor.authorKarali, T.
dc.contributor.authorCan, N.
dc.date.accessioned2019-10-27T23:09:53Z
dc.date.available2019-10-27T23:09:53Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractHerein, we primarily focus on luminescence spectrum measurements of various types of green emitting yttrium aluminate phosphors modified with gallium (Y3Al5-xGaxO12) synthesised by solid state reaction. The luminescent emission of samples depends on sample temperature and excitation radiation such as incident X-ray, electron and laser beam. Here, we measured radioluminescence (RL), cathodoluminescence (CL), photoluminescence (PL) along with XRD in order to clarify relationship between lattice defects and the spectral luminescence emissions. The RL and CL spectra of YAG:Ce exhibit an emission band ranging from 300 to 450 nm related to Y-Al antisite defects. The broad emission band of garnet phosphors is shifted from 526 nm to 498 nm with increasing of Ga3+ content, while full width at half maximum (FWHM) of the band tends to be greater than the width of unmodified YAG: Ce garnet. Deconvolution of the spectrum reveals that three emission bands centred at 139, 234 and 294 degrees C occur in aluminate host garnets. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.jallcom.2016.01.113
dc.identifier.endpage453en_US
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.issn0925-8388en_US
dc.identifier.issn1873-4669en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage447en_US
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2016.01.113
dc.identifier.urihttps://hdl.handle.net/11454/52769
dc.identifier.volume666en_US
dc.identifier.wosWOS:000369581800062en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectY3Al5O12 garneten_US
dc.subjectGa dopingen_US
dc.subjectLuminescence Gaussian peak fittingen_US
dc.titleStructural and luminescence effects of Ga co-doping on Ce-doped yttrium aluminate based phosphorsen_US
dc.typeArticleen_US

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