Effect of boron incorporation on the structural, morphological, and spectral properties of CdNb2O6:Dy3+ phosphor synthesized by molten salt process

Simple item page
dc.contributor.authorİlhan M.
dc.contributor.authorEkmekçi M.K.
dc.contributor.authorGüleryüz L.F.
dc.date.accessioned2024-07-22T08:02:08Z
dc.date.available2024-07-22T08:02:08Z
dc.date.issued2023
dc.description.abstractThe effect of boron addition on the structural, morphologic and spectral properties was investigated by using xDy3+ (x = 0.5, 3, 6 mol%) doped, and xDy3+, yB3+ (y = 0, 5, 15, 25 mol%) co-doped CdNb2O6 powders produced by molten salt method. X-ray diffractions (XRD) of all Dy3+ doped, and B3+, Dy3+ co-doped samples showed that they retained the single-phase structure. The homogeneous dissolution of the Dy3+ doping without forming an impurity phase in the structure can be attributed to the flux effect of the molten salt process and boron doping. Scanning electron microscopy (SEM) micrographs of the B3+, Dy3+ co-doped grains showed that the effect of boron promotes grain growth and prismatic-like grain shape. Photoluminescence (PL) emissions of the phosphors with the excitation of 351.9 nm were monitored by the 4F9/2→6H15/2, 4F9/2→6H13/2, and 4F9/2→6H11/2 transitions. PL excitations and a broad peak at 275 nm originating from the O2–→Nb5+ band transition were observed with the emission of 577.9 nm. The PL emissions of Dy3+, B3+ co-doped phosphors increased about two fold compared to Dy3+ doped samples. The increase in PL may be related to the increased presence of luminescence centers at or near grain surface due to the decreasing surface area (SA)/volume (V) ratio as the growth of B3+ co-doped grains and the transformation from rod-like to prismatic-like shape. The increased Dy3+ presence led to a decrease in observed lifetime, while the B3+ increase did not cause any change. The study may provide a different perspective for the understanding and controlling of grain morphology and the luminescence relation for RE-doped phosphors. © 2023 Elsevier B.V.
dc.identifier.DOI-ID10.1016/j.mseb.2023.116858
dc.identifier.issn09215107
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11735
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectBoron
dc.subjectFused salts
dc.subjectGrain growth
dc.subjectLuminescence
dc.subjectMorphology
dc.subjectNiobium compounds
dc.subjectPhosphors
dc.subjectScanning electron microscopy
dc.subjectBoron effect
dc.subjectBoron incorporations
dc.subjectCo-doped
dc.subjectDecay time
dc.subjectDoped sample
dc.subjectGrain morphologies
dc.subjectMolten salt
dc.subjectMorphological properties
dc.subjectPhotoluminescence emission
dc.subjectSpectral properties
dc.subjectCadmium compounds
dc.titleEffect of boron incorporation on the structural, morphological, and spectral properties of CdNb2O6:Dy3+ phosphor synthesized by molten salt process
dc.typeArticle

Files

Collections

Scopus Koleksiyonu

We collect and process your personal information for the following purposes: Authentication, Preferences, Acknowledgement and Statistics.
To learn more, please read our privacy policy.

Customize