Judd-Ofelt parameters and X-ray irradiation results of MNb2O6:Eu3+(M = Sr, Cd, Ni) phosphors synthesizedviaa molten salt method

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dc.contributor.authorİlhan M.
dc.contributor.authorEkmekçi M.K.
dc.contributor.authorKeskin İ.Ç.
dc.date.accessioned2024-07-22T08:06:11Z
dc.date.available2024-07-22T08:06:11Z
dc.date.issued2021
dc.description.abstractTrivalent Eu-activated MNb2O6(M = Sr, Cd, Ni) ceramic phosphors were produced using the molten salt route, which involves a low sintering temperature and provides improved homogeneity. The photoluminescence (PL) and radioluminescence (RL) spectra of phosphors exhibited characteristic Eu3+emissions with5F0→7Fjtransitions, and strong peaks occurred at the5D0→7F2transition. The PL and RL emissions of SrNb2O6:Eu3+decreased over 3 mol%, while both emissions for CdNb2O6:Eu3+and NiNb2O6:Eu3+increased with increasing Eu3+concentration. The spectral properties of phosphors were evaluated by determining Judd-Ofelt intensity parameters (Ω2,Ω4) from the PL emission spectrum. The quantum efficiencies (ηQE%) of MNb2O6:Eu3+(M = Sr, Cd, Ni) phosphors with the highest emission were found as 61.87%, 41.89%, and 11.87% respectively. Bandwidths (σe× Δλeff) and optical gains (σe×τ) of MNb2O6:Eu3+(M = Sr, Cd, Ni) phosphors with highest emissions were found as follows; 24.182 × 10−28, 28.674 × 10−28, 38.647 × 10−28cm3and 20.441 × 10−25, 13.790 × 10−25, 3.987 × 10−25cm2s, respectively, corresponding to the5D0→7F2transition. © The Royal Society of Chemistry 2021.
dc.identifier.DOI-ID10.1039/d0ra10834k
dc.identifier.issn20462069
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13410
dc.language.isoEnglish
dc.publisherRoyal Society of Chemistry
dc.rightsAll Open Access; Gold Open Access; Green Open Access
dc.subjectEmission spectroscopy
dc.subjectFused salts
dc.subjectJudd-Ofelt theory
dc.subjectLight emission
dc.subjectSintering
dc.subjectJudd-Ofelt intensity parameters
dc.subjectJudd-Ofelt parameters
dc.subjectLow sintering temperature
dc.subjectMolten salt
dc.subjectMolten salt method
dc.subjectRadioluminescence spectra
dc.subjectSpectral properties
dc.subjectX ray irradiation
dc.subjectPhosphors
dc.titleJudd-Ofelt parameters and X-ray irradiation results of MNb2O6:Eu3+(M = Sr, Cd, Ni) phosphors synthesizedviaa molten salt method
dc.typeArticle

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