Lattice distortion effects induced by Li plus co-doping on ZnO:Tb3+phosphors: Photoluminescence and unusual hypersensitive 5D4 → 7F0 transition

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dc.authoridCan, Nurdogan/0000-0001-9576-7869
dc.contributor.authorAltowyan, Abeer S.
dc.contributor.authorCoban, M. B.
dc.contributor.authorKaynar, U. H.
dc.contributor.authorHakami, Jabir
dc.contributor.authorCin, E. Aymila
dc.contributor.authorKaynar, S. Cam
dc.contributor.authorAyvacikli, M.
dc.date.accessioned2025-03-20T09:51:11Z
dc.date.available2025-03-20T09:51:11Z
dc.date.issued2024
dc.departmentİzmir Bakırçay Üniversitesi
dc.description.abstractA series of Tb3+, Li+ co-doped ZnO phosphors were prepared using a precipitation method. X-ray diffraction (XRD) analysis indicated the successful incorporation of Tb3+ into the ZnO lattice. The influence of Tb3+ doping content and Li+ charge compensator on the photoluminescence (PL) properties of ZnO:Tb3+ was investigated. Under UV excitation, emissions corresponding to electron transitions 5D4 -> 7FJ (J = 0,1,2,3,4,5,6) were observed from Tb3+ ions, including an unusual emission transition at 673 nm, which significantly enriches our understanding of Tb3+ luminescence. The critical concentration quenching of Tb3+ in ZnO:Tb3+ occurs at 7 mol%, as explained by the Van Uitert equation, which attributes this phenomenon to dipole-dipole interactions. Surprisingly, incorporating Li+ for charge balancing led to a reduction in the luminescence intensity of ZnO:7 mol% Tb3+, x%Li+ phosphors (x = 0.01 and 0.07) at 544 nm. This reduction highlights an increased degree of lattice distortion due to Li+ inclusion. Furthermore, CIE chromaticity analysis showed that the optimal doping concentration of 0.07 Tb3+ shifted the color coordinates towards vivid green, with a color temperature of approximately 6241 K, indicating of neutral white light.
dc.description.sponsorshipPrincess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia [PNURSP2024R16]; Izmir Bakircay University Scientific Research Projects Coordination Unit [HZP.2023.001]
dc.description.sponsorshipWe express our gratitude to 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 Bakircay University Scientific Research Projects Coordination Unit, under grant number HZP.2023.001.
dc.identifier.doi10.1016/j.ceramint.2024.04.135
dc.identifier.endpage24044
dc.identifier.issn0272-8842
dc.identifier.issn1873-3956
dc.identifier.issue13
dc.identifier.scopus2-s2.0-85190559564
dc.identifier.scopusqualityQ1
dc.identifier.startpage24036
dc.identifier.urihttps://doi.org/10.1016/j.ceramint.2024.04.135
dc.identifier.urihttps://hdl.handle.net/20.500.14034/2458
dc.identifier.volume50
dc.identifier.wosWOS:001242435100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofCeramics International
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250319
dc.subjectZnO
dc.subjectTb3+
dc.subjectLi plus . photoluminescence
dc.subjectconcentration quenching
dc.titleLattice distortion effects induced by Li plus co-doping on ZnO:Tb3+phosphors: Photoluminescence and unusual hypersensitive 5D4 → 7F0 transition
dc.typeArticle

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