Solid state synthesis of SrAl2O4:Mn2+ co-doped with Nd3+ phosphor and its optical properties

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dc.authorid0000-0002-7278-046X
dc.authorid0000-0001-9414-8492
dc.authorid0000-0002-9615-9045
dc.authorid0000-0003-1848-3138
dc.contributor.authorAyvacikli, M.
dc.contributor.authorKotan, Z.
dc.contributor.authorEkdal, E.
dc.contributor.authorKarabulut, Y.
dc.contributor.authorCanimoglu, A.
dc.contributor.authorGarcia Guinea, J.
dc.contributor.authorCan, N.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractThe optical properties of alkaline earth aluminates doped with rare earth ions have received much attention in the last years and this is due to. their chemical stability, long-afterglow (LAG) phosphorescence and high quantum efficiency. However, there is a lack of understanding about the nature of the rare earth ion trapping sites and the mechanisms which could activate and improve the emission centers in these materials. Therefore a new phosphor material composition, SrAl2O4:Mn2+, co-doped with Nd3+ was synthesized by a traditional solid-state reaction method. The influence of transition metal and rare earth doping on crystal structure and its luminescence properties have been investigated by using X-ray diffraction (XRD), Raman scattering, Photoluminescence (PL) and Radioluminescence (RL). Analysis of the related diffraction patterns has revealed a major phase characteristic of the monoclinic SrAl2O4 compound. Small amounts of the dopants MnCO3 and Nd2O3 have almost no effect on the crsytalline phase composition. Characteristic absorption bands from Nd3+ 4f-4f transitions in the spectra can be assigned to the transitions from the ground state I-4(9/2) to the excited states. The luminescence of Mn2+ activated SrAl2O4 exhibits a broad green emission band from the synthesized phosphor particles under different excitation sources. This corresponds to the spin-forbidden transition of the d-orbital electron associated with the Mn2+ ion. In photo- and radio-luminescence spectra, Nd3+ 4f-4f transition peaks were observed. The emitted radiations for different luminescence techniques were dominated by 560, 870, 1057 and 1335 nm peaks in the visible and NIR regions as a result of I-4(9/2) -> (4)G(7/2) and F-4(3/2) -> I-4(J) (J=9/2, 11/2 and 13/2) transitions of Nd3+ ions, respectively. Multiple emission lines observed at each of these techniques are due to the crystal field splitting of the ground state of the emitting ions. The nature of the emission lines is discussed. (C) 2013 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.jlumin.2013.06.040
dc.identifier.endpage132
dc.identifier.issn0022-2313
dc.identifier.issn1872-7883
dc.identifier.scopus2-s2.0-84880870769
dc.identifier.scopusqualityQ2
dc.identifier.startpage128
dc.identifier.urihttps://dx.doi.org/10.1016/j.jlumin.2013.06.040
dc.identifier.urihttps://hdl.handle.net/11480/4316
dc.identifier.volume144
dc.identifier.wosWOS:000325600100024
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofJOURNAL OF LUMINESCENCE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSrAl2O4
dc.subjectRare earths
dc.subjectRadio luminescence
dc.subjectPhotoluminescence
dc.subjectCathodoluminescence
dc.subjectSolid state reaction method
dc.titleSolid state synthesis of SrAl2O4:Mn2+ co-doped with Nd3+ phosphor and its optical properties
dc.typeArticle

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