Enhanced luminescence of Eu3+ in LaAl2B4O10 via energy transfer from Dy3+ doping

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dc.authoridCan, Nurdogan/0000-0001-9576-7869
dc.authoridAydin, Hasan/0000-0003-1622-2436
dc.authoridCoban, Mustafa Burak/0000-0003-3488-5284
dc.contributor.authorKaynar, U. H.
dc.contributor.authorCoban, M. B.
dc.contributor.authorHakami, Jabir
dc.contributor.authorAltowyan, Abeer S.
dc.contributor.authorAydin, H.
dc.contributor.authorAyvacikli, M.
dc.contributor.authorCan, N.
dc.date.accessioned2025-03-20T09:51:05Z
dc.date.available2025-03-20T09:51:05Z
dc.date.issued2024
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractIn this study, an investigation was conducted on the structural and photoluminescence (PL) characteristics of LaAl2B4O10 (LAB) phosphors initially incorporated with Dy3+ and Eu3+ ions. Subsequently, the impact of varying Eu3+ concentration while maintaining a constant Dy3+ concentration was examined. Structural characterization was performed using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and energy-dispersive X-ray spectroscopy (EDS). XRD analysis confirmed the effective embedding of both dopants into the hexagonal framework of the LAB. The PL emission spectra revealed characteristic emissions of Dy3+ (blue and yellow) and Eu3+ (red) ions. The optimized dopant concentrations of both Dy3+ and Eu3+ were observed to be 3 wt%. The dominant mechanism for concentration quenching in doped LAB phosphors was determined to be the electric dipole-dipole interaction. Co-doping with Eu3+ led to a substantial decrease in Dy3+ emission intensity (similar to 0.18-fold) while enhancing Eu3+ emission intensity (similar to 3.72-fold). The critical energy transfer distance (R-C = 11.64 & Aring;) and the analysis based on the Dexter theory confirmed that the energy transfer mechanism corresponds to dipole-dipole interaction. The color purities and correlated color temperatures (CCT) were estimated, suggesting the potential of these phosphors for warm white and red lighting applications, respectively. The observed energy transfer and luminescence properties, along with the structural and compositional characterization, highlight the promising potential of LAB:Dy3+/Eu3+ co-doped phosphors for advanced lighting and display technologies.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2024R16]; Izmir Bakimath;rcay University [HZP.2023.001]
dc.description.sponsorshipWe express our gratitude to the Princess Nourah bint Abdulrahman University Researchers Supporting Project number (PNURSP2024R16) , Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia. This work was also supported by Izmir Bak & imath;rcay University Scientific Research Projects Coordination Unit, under grant number HZP.2023.001.
dc.identifier.doi10.1016/j.saa.2024.124711
dc.identifier.issn1386-1425
dc.identifier.issn1873-3557
dc.identifier.pmid38941750
dc.identifier.scopus2-s2.0-85196968274
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.saa.2024.124711
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2403
dc.identifier.volume321
dc.identifier.wosWOS:001262973700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofSpectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250319
dc.subjectLanthanide-doped phosphors
dc.subjectDy3+
dc.subjectEu3+
dc.subjectEnergy transfer
dc.subjectPhotoluminescence
dc.subjectWarm white lighting
dc.titleEnhanced luminescence of Eu3+ in LaAl2B4O10 via energy transfer from Dy3+ doping
dc.typeArticle

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