Synthesis, characterization and enhanced photoluminescence and temperature dependence of ZrO2:Dy3+phosphors upon incorporation of K plus ions

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dc.authoridCOBAN, Mustafa Burak/0000-0003-3488-5284
dc.authoridGarcia-Guinea, Javier/0000-0003-1848-3138
dc.authorwosidCOBAN, Mustafa Burak/V-6257-2017
dc.authorwosidGarcia-Guinea, Javier/N-4992-2014
dc.contributor.authorCan, N.
dc.contributor.authorCoban, M. B.
dc.contributor.authorSouadi, G.
dc.contributor.authorKaynar, Umit H.
dc.contributor.authorAyvacikli, M.
dc.contributor.authorGuinea, J. Garcia
dc.contributor.authorKarali, E. Ekdal
dc.date.accessioned2024-03-09T18:48:19Z
dc.date.available2024-03-09T18:48:19Z
dc.date.issued2023
dc.departmentİzmir Bakırçay Üniversitesien_US
dc.description.abstractThis study reports the successful synthesis and comprehensive characterization of ZrO2:Dy3+ phosphors with the incorporation of K+ ions. The introduction of Dy3+ and K+ in the ZrO2 lattice as lanthanide activators demonstrates its potential as an efficient host material. The structural integrity of ZrO2 remains unaltered following the doping process. Fourier-transform infrared spectroscopy (FTIR) analysis confirms the presence of Zr-O and O-H stretching, along with H2O bending modes in the phosphor sample. The wide luminescence band seen at 460 nm is attributed to luminescence defects in the ZrO2 induced by oxygen, and the presence of water molecules. Photoluminescence (PL) spectra analysis reveals pronounced emission peaks at 491 and 578 nm, corresponding to 4F9/2 -> 6H15/2 and 4F9/2 -> 6H13/2 transitions, respectively, upon excitation at 349 nm. Optimizing the Dy3+ doping concentration to 0.4 wt% and achieving a critical distance of 31.82 angstrom resulted in efficient energy transfer. Notably, co-doping K+ as a charge compensator significantly enhances the luminescence intensity. Moreover, at lower temperatures, direct excitation of Dy3+ ions through our pump wavelength, coupled with exciton-mediated energy transfer, leads to a remarkable increase in PL intensity. Tailoring the doping concentrations effectively shifts the emission spectrum of the phosphor mixture, aligning with the standard white light illumination co-ordinates (0.333, 0.333). This property positions the material as a promising candidate for applications in white light-emitting diodes (WLEDs) and various high-quality lighting applications. The enhanced photoluminescence and temperature dependence observed in ZrO2:Dy3+ phosphors upon the incorporation of K+ ions pave the way for their potential utilization in advanced luminescent devices.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)en_US
dc.description.sponsorshipThe authors extend their sincere gratitude for the support rendered to this study by the Scientific and Technological Research Council of Turkey (TUBITAK) through the 2221 -Fellowships for Visiting Scientists and Scientists on Sabbatical Leave Programme.en_US
dc.identifier.doi10.1016/j.ceramint.2023.09.003
dc.identifier.endpage36762en_US
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue22en_US
dc.identifier.scopus2-s2.0-85169891910en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage36752en_US
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2023.09.003
dc.identifier.urihttps://hdl.handle.net/20.500.14034/1292
dc.identifier.volume49en_US
dc.identifier.wosWOS:001088494300001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofCeramics Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectZro2; Dy3+; K Plus; Photoluminescence; White Light Emitting Diodesen_US
dc.titleSynthesis, characterization and enhanced photoluminescence and temperature dependence of ZrO2:Dy3+phosphors upon incorporation of K plus ionsen_US
dc.typeArticleen_US

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