Temperature-responsive insights: Investigating Eu3+ and Dy3+ activated yttrium calcium oxyborate phosphors for structure and luminescence

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dc.contributor.authorJabali D.A.
dc.contributor.authorMadkhli A.Y.
dc.contributor.authorSouadi G.
dc.contributor.authorKaynar Ü.H.
dc.contributor.authorCoban M.B.
dc.contributor.authorMadkhali O.
dc.contributor.authorAyvacikli M.
dc.contributor.authorAmri N.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:01:21Z
dc.date.available2024-07-22T08:01:21Z
dc.date.issued2024
dc.description.abstractAn investigation into the luminescent behavior of YCOB (Yttrium Calcium Oxyborate) doped with Eu3+ and Dy3+ ions, synthesized via the combustion method, is presented. The study, employing X-ray diffraction (XRD), Fourier-Transform Infrared Spectroscopy (FTIR), and Energy-Dispersive X-ray Spectroscopy (EDS) analyses, confirms the structural integrity and purity of the synthesized nanophosphors. An XRD pattern exhibiting distinct crystalline peaks indicates that the dopant ions were successfully integrated into the YCOB lattice. The photoluminescence (PL) response of YCOB with Eu3+ and Dy3+ ions is thoroughly examined, uncovering distinct excitation and emission spectra. In the case of Eu3+ doping, excitation spectra reveal a significant charge transfer (CT) band at 254 nm, indicative of electron transfer between oxygen and europium ions. This CT transition enhances our understanding of the excitation behavior, with the dominant and Laporte-forbidden 5D0 → 7F2 transition. Characteristic peaks at 345 nm in the excitation spectra efficiently stimulate YCOB:Dy3+ when Dy3+ is used as a dopant. The primary emission peak at 585 nm corresponds to the hypersensitive electric dipole transition 4F9/2–6H13/2. Concentration quenching phenomena are observed, with a maximum Eu3+ concentration of 7 wt % attributed to the dipole-quadrupole interaction. Dy3+ doping, with a maximum concentration of 2 wt % primarily shows multipolar interactions, especially dipole-dipole interactions. The study extends to CIE chromaticity analysis, emphasizing Eu3+ doping's suitability for white light-emitting diode (WLED) applications and ensuring color stability. Conversely, varying Dy3+ concentrations do not yield consistent chromaticity coordinates. These findings have significant implications for the development of advanced phosphor materials across diverse applications, offering a roadmap for optimizing their optical performance. © 2024 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.apradiso.2024.111214
dc.identifier.issn09698043
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11410
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectCalcium compounds
dc.subjectCharge transfer
dc.subjectDysprosium compounds
dc.subjectEmission spectroscopy
dc.subjectEnergy dispersive spectroscopy
dc.subjectExcited states
dc.subjectFourier transform infrared spectroscopy
dc.subjectIons
dc.subjectPhosphors
dc.subjectPhotoluminescence
dc.subjectQuenching
dc.subjectYttrium compounds
dc.subjectcalcium
dc.subjectdysprosium
dc.subjecteuropium
dc.subjectphosphorus
dc.subjectunclassified drug
dc.subjectyttrium
dc.subjectyttrium calcium oxyborate
dc.subjecteuropium
dc.subjectoxygen
dc.subjectCIE
dc.subjectCombustion method
dc.subjectConcentration quenching
dc.subjectExcitation spectrum
dc.subjectInfrared energy
dc.subjectOxyborates
dc.subjectSynthesised
dc.subjectTemperature-responsive
dc.subjectX- ray diffractions
dc.subjectYttrium calcium oxyborate
dc.subjectArticle
dc.subjectcharge transfer
dc.subjectchemical interaction
dc.subjectchemical structure
dc.subjectcolor
dc.subjectcombustion
dc.subjectconcentration (parameter)
dc.subjectconcentration quenching
dc.subjectcontrolled study
dc.subjectcrystal structure
dc.subjectdipole
dc.subjectelectricity
dc.subjectelectron transport
dc.subjectenergy dispersive X ray spectroscopy
dc.subjectexcitation
dc.subjectFourier transform infrared spectroscopy
dc.subjectphotoluminescence
dc.subjectroom temperature
dc.subjectsynthesis
dc.subjecttemperature
dc.subjectX ray diffraction
dc.subjectarticle
dc.subjectcolorimetry
dc.subjectenergy dispersive X ray spectroscopy
dc.subjectFourier transform infrared spectrometer
dc.subjectFourier transform infrared spectroscopy
dc.subjecthypersensitivity
dc.subjectlamellar ichthyosis
dc.subjectlight emitting diode
dc.subjectluminescence
dc.subjectmaximum concentration
dc.subjectpharmaceutics
dc.subjectwhite light
dc.subjectX ray diffraction
dc.titleTemperature-responsive insights: Investigating Eu3+ and Dy3+ activated yttrium calcium oxyborate phosphors for structure and luminescence
dc.typeArticle

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