Study on molten salt synthesis, microstructural determination and white light emitting properties of CoNb2O6:Dy3+ phosphor

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dc.contributor.authorEkmekci, Mete Kaan
dc.contributor.authorIlhan, Mustafa
dc.contributor.authorGuleryuz, Lutfiye Feray
dc.contributor.authorMergen, Ayhan
dc.date.accessioned2019-10-27T11:23:17Z
dc.date.available2019-10-27T11:23:17Z
dc.date.issued2017
dc.departmentEge Üniversitesien_US
dc.description.abstractUndoped, 0.5, 3 and 6 mol% Dy3+ doped CoNb2O6 powders have been prepared by molten salt method using cobalt nitrate hexa hydrate, niobium oxide, dysprosium oxide and Li2SO4-Na2SO4 salt mixture as a flux at 800 degrees C for 4h. X-ray diffraction patterns of the undoped, 0.5 and 3 mol% doped CoNb2O6 samples exhibited a single orthorhombic columbite phase, while 6 mol% Dy3+ doped powder showed minor phase. SEM-EDS results coonfirmed XRD findings and revealed smaller grain size by increasing Dy3+ concentration. Structural and luminescence properties of Dy3+ doped samples in UV-vis spectral region were studied. The emissions increased with increasing doping concentration up to 3 mol%, and then decreased due to concentration quenching effect. The color chromaticity temperature (CCT) data of all samples have been estimated in white light region and color of light appear close to yellowish-green. (C) 2016 Elsevier GmbH. All rights reserved.en_US
dc.identifier.doi10.1016/j.ijleo.2016.10.012
dc.identifier.endpage33en_US
dc.identifier.issn0030-4026
dc.identifier.issn0030-4026en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage26en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijleo.2016.10.012
dc.identifier.urihttps://hdl.handle.net/11454/33157
dc.identifier.volume128en_US
dc.identifier.wosWOS:000388050700004en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Gmbh, Urban & Fischer Verlagen_US
dc.relation.ispartofOptiken_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCobalt niobateen_US
dc.subjectXRDen_US
dc.subjectSEM-EDSen_US
dc.subjectOptical propertiesen_US
dc.subjectWhite LEDsen_US
dc.titleStudy on molten salt synthesis, microstructural determination and white light emitting properties of CoNb2O6:Dy3+ phosphoren_US
dc.typeArticleen_US

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