Novel Tb3+-Doped LaAl2 B4 O10 phosphors: Structural analysis, luminescent properties, and energy transfer mechanism

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dc.authoridCan, Nurdogan/0000-0001-9576-7869
dc.contributor.authorKaynar, U. H.
dc.contributor.authorAydin, H.
dc.contributor.authorHakami, Jabir
dc.contributor.authorAltowyan, Abeer S.
dc.contributor.authorCoban, M. B.
dc.contributor.authorAyvacikli, M.
dc.contributor.authorCanimoglu, A.
dc.date.accessioned2025-03-20T09:51:12Z
dc.date.available2025-03-20T09:51:12Z
dc.date.issued2024
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractThis study explores the structural and luminescent properties of terbium (Tb3+)-doped lanthanum aluminium borate (LaAl2B4O,0, abbreviated as LAB) phosphors, a novel host lattice for Tb3+ doping. LAB:Tb3+ phosphors, with varying dopant concentrations, were synthesized using a microwave-assisted combustion synthesis approach and characterized using X-ray diffraction (XRD), Rietveld refinement, and photoluminescence spectroscopy at both room and low temperatures. The structural analysis confirmed the hexagonal crystal structure of LAB and revealed successful incorporation of Tb3+ ions without altering the fundamental lattice. Luminescence studies demonstrated that the LAB:Tb3+ phosphors show strong green emission primarily attributed to the 5D4 -> 7F5 transition of Tb3+. The optimal doping concentration was determined to be 5 wt% Tb3+, which provided maximum luminescence efficiency. This concentration also allowed for a critical study of energy transfer mechanisms within the phosphor, revealing dipole-dipole interactions with a critical distance of 9.80 & Aring; between Tb3+ ions. Additionally, the CIE chromaticity coordinates of LAB:0.05 Tb3+ were precisely determined to be (0.289, 0.4460), indicating the potential for high-quality green emission suitable for solid-state lighting and display technologies. This work not only demonstrates the potential of LAB:Tb3+ as a highly efficient green luminescent material, but also sheds light on the mechanisms responsible for energy transfer and concentration quenching.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2024R16]; Scientific and Technological Research Council of Turkey (TUBITAK) [1001223M036]
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. The authors acknowledge grants from the Scientific and Technological Research Council of Turkey (TUBITAK, project number: 1001223M036).
dc.identifier.doi10.1016/j.apradiso.2024.111380
dc.identifier.issn0969-8043
dc.identifier.issn1872-9800
dc.identifier.pmid38830278
dc.identifier.scopus2-s2.0-85194948279
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.apradiso.2024.111380
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2467
dc.identifier.volume210
dc.identifier.wosWOS:001255118700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofApplied Radiation and Isotopes
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250319
dc.subjectRietveld analysis
dc.subjectPhotoluminescence
dc.subjectConcentration quenching
dc.subjectCIE chromaticity
dc.titleNovel Tb3+-Doped LaAl2 B4 O10 phosphors: Structural analysis, luminescent properties, and energy transfer mechanism
dc.typeArticle

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