Tb-doped MgAl2O4 phosphors: A study of structural and luminescence characteristics

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dc.contributor.authorHalefoglu Y.Z.
dc.contributor.authorSouadi G.
dc.contributor.authorAyvacikli M.
dc.contributor.authorBulcar K.
dc.contributor.authorTopaksu M.
dc.contributor.authorCanimoglu A.
dc.contributor.authorMadkhali O.
dc.contributor.authorKarmouch R.
dc.contributor.authorCan N.
dc.date.accessioned2024-07-22T08:02:02Z
dc.date.available2024-07-22T08:02:02Z
dc.date.issued2024
dc.description.abstractIn the MgO–Al2O3 system, magnesium aluminate spinel (MgAl2O4) is a technologically significant compound due to its unique properties, including a high melting point, low thermal conductivity, excellent thermal shock resistance, chemical inertness, and robust mechanical strength. This compound has diverse applications in refractory materials, catalyst supports, moisture sensors, nuclear techniques, insulating materials, and even military applications. While rare-earth elements are commonly used as dopants in luminescent materials, limited research exists on doping of Tb3+ ions in magnesium aluminate. This study investigates the luminescence properties of Tb3+ doped synthesis magnesium aluminate materials, shedding light on this underexplored area. The combustion method is employed for synthesis, known for producing nano-sized powders with exceptional luminescent properties. Additionally, this study explores Sm3+ ion doping in magnesium aluminate materials and their luminescence properties. Using the combustion synthesis method, structural attributes of Tb3+−doped MgAl2O4 nanophosphors are meticulously examined. Through X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) analyses, coupled with excitation and emission spectra, a comprehensive investigation of the luminescent provide behavior at room temperature is provided. The XRD data reveal Tb3+ doped MgAl2O4 phosphors exhibit a single phase with face centred cubic structure belonging to the Fd3 m‾ space group, consistent with the standard JCPDS files (No. 21–1152). Excitation and emission spectra offer valuable insights into the energy transitions within the Tb3+−doped MgAl2O4 phosphors. Furthermore, the study explores the effects of varying Tb3+ ion concentrations on the luminescent properties, revealing an optimal doping concentration of 5 wt% Tb for maximizing emission intensity. Concentration quenching, primarily attributed to dipole-dipole (d-q) interactions, is observed at higher Sm3+ concentrations. In conclusion, this research enhances our understanding of rare-earth ion doping in luminescent materials and highlights the potential applications of Tb3+−doped MgAl2O4 nanophosphors, which offer promise for various technological applications, including lighting and displays. © 2023 Elsevier Ltd
dc.identifier.DOI-ID10.1016/j.apradiso.2023.111101
dc.identifier.issn09698043
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/11673
dc.language.isoEnglish
dc.publisherElsevier Ltd
dc.subjectAlumina
dc.subjectAluminum oxide
dc.subjectCombustion synthesis
dc.subjectEmission spectroscopy
dc.subjectEuropium compounds
dc.subjectFourier transform infrared spectroscopy
dc.subjectGadolinium compounds
dc.subjectLuminescence of inorganic solids
dc.subjectMetal ions
dc.subjectMilitary applications
dc.subjectPhosphors
dc.subjectRare earths
dc.subjectSodium Aluminate
dc.subjectStructural properties
dc.subjectTerbium compounds
dc.subjectThermal conductivity
dc.subjectaluminum
dc.subjectmagnesium
dc.subjectmagnesium aluminate
dc.subjectphosphorus
dc.subjectterbium
dc.subjectunclassified drug
dc.subjectDipole dipole interactions
dc.subjectExcitation and emission spectra
dc.subjectLuminescence properties
dc.subjectLuminescent material
dc.subjectLuminescent property
dc.subjectMagnesium aluminate
dc.subjectNanophosphors
dc.subjectStructural characteristics
dc.subjectTb-doped
dc.subjectX- ray diffractions
dc.subjectArticle
dc.subjectchemical analysis
dc.subjectchemical interaction
dc.subjectchemical structure
dc.subjectcombustion
dc.subjectconcentration (parameter)
dc.subjectdipole
dc.subjectFourier transform infrared spectroscopy
dc.subjectphotoluminescence
dc.subjectpowder
dc.subjectroom temperature
dc.subjectsynthesis
dc.subjectX ray diffraction
dc.subjectX ray diffraction
dc.titleTb-doped MgAl2O4 phosphors: A study of structural and luminescence characteristics
dc.typeArticle

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