Synthesis and thermoluminescence study of Eu doped novel LaBO3 phosphor: Heating rate, dose response, trapping parameters

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dc.contributor.authorSonsuz M.
dc.contributor.authorTopaksu M.
dc.contributor.authorHakami J.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:03:57Z
dc.date.available2024-07-22T08:03:57Z
dc.date.issued2022
dc.description.abstractIn this study, LaBO3, one of the Lanthanum-based perovskites-type oxides, and a series of LaBO3:Eu3+ phosphor samples were synthesized by solid state reaction technique. By using XRD, samples of the synthesized samples were analysed to identify a compound that indicates orthorhombic cells belonging to the Pmcn (62) space group. After 5 Gy of beta irradiation, the sample doped with 0.5 mass % Eu showed the highest integrated thermoluminescence intensity (TL). To evaluate the dose response, samples were irradiated with beta radiation from 0.1 to 100 Gy. The studied sample exhibits linear behaviour up to doses up to 5 Gy, while above this (up to 100 Gy) shows quasi-linear behaviour before reaching saturation. The peak number, trap structure, and kinetic parameters of Eu-doped LaBO3 thermoluminescence curves were determined using an initial rise method combined with TM-Tstop experiments, various heating rates (VHR), and Glow Curve Deconvolution (GCD) method. TM–Tstop calculations suggest nine plateaus of activation with energies of 1.21 eV, 0.98 eV, 1.03 eV, 1.32 eV, 1.43 eV, 0.68 eV, 1.98 eV, 1.83 eV and 1.92 eV which constitute the main radiation storage contributions. The GCD method was used to calculate trap depths and frequency factors ranging from 0.68 to 1.95 eV and from 106 to 1015 s−1, respectively. In VHR method, one of the high temperature glow peaks exhibited unusual behaviour which was attributed to a competition between radiative and non-radiative transitions. © 2022 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.radphyschem.2022.110412
dc.identifier.issn0969806X
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/12497
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectActivation energy
dc.subjectEuropium
dc.subjectHeating rate
dc.subjectKinetic parameters
dc.subjectLanthanum compounds
dc.subjectPerovskite
dc.subjectPhosphors
dc.subjectSolid state reactions
dc.subjectboric acid
dc.subjecteuropium
dc.subjectlanthanide
dc.subjectlanthanum
dc.subjectlanthanum boric acid
dc.subjectperovskite
dc.subjectphosphorus
dc.subjectunclassified drug
dc.subjectDeconvolution method
dc.subjectDose response
dc.subjectEu
dc.subjectGlow curve deconvolution
dc.subjectKinetics parameter
dc.subjectLinear behavior
dc.subjectPerovskite type oxides
dc.subjectSolid-state reaction techniques
dc.subjectSynthesised
dc.subjectTrapping parameter
dc.subjectArticle
dc.subjectchemical parameters
dc.subjectchemical structure
dc.subjectelectron therapy
dc.subjectglow curve deconvolution
dc.subjectheating rate
dc.subjecthigh temperature
dc.subjectkinetic parameters
dc.subjectradiation dose
dc.subjectroom temperature
dc.subjectsolid state
dc.subjectstatistical analysis
dc.subjectsynthesis
dc.subjectthermoluminescence
dc.subjecttrapping parameter
dc.subjectX ray diffraction
dc.subjectThermoluminescence
dc.titleSynthesis and thermoluminescence study of Eu doped novel LaBO3 phosphor: Heating rate, dose response, trapping parameters
dc.typeArticle

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