Radioluminescence and photoluminescence characterization of Eu and Tb doped barium stannate phosphor ceramics

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dc.contributor.authorAyvacikli, M
dc.contributor.authorCanimoglu, A
dc.contributor.authorKarabulut, Y
dc.contributor.authorKotan, Z
dc.contributor.authorHerval, LKS
dc.contributor.authorde Godoy, MPF
dc.contributor.authorGobato, YG
dc.contributor.authorHenini, M
dc.contributor.authorCan, N
dc.date.accessioned2024-07-18T12:06:27Z
dc.date.available2024-07-18T12:06:27Z
dc.description.abstractIn this paper, we report on structural and optical properties of terbium and europium doped barium stannate phosphors (BaSnO3) synthesised by conventional solid state reaction method. We have studied those materials by using X-ray diffraction (XRD), radioluminescence (RL) and photoluminescence (PL) techniques. XRD patterns confirm that the BaSnO3 sintered at 1400 degrees C exhibit orthorhombic structure and that the Tb3+ and Eu3+ substitution of Ba2+ does not change the structure of the BaSnO3 host. The optical emission spectrum is characterized a broad band centered at 897 nm (1.38 eV), with a high-energy tail approximately 750 nm from the host lattice. Other emission signals that are characteristic of the 3 + oxidation state of rare earth elements were generated by Eu and Tb doping. Luminescence measurements show that the series of emission states D-5(4) -> F-7(6), D-5(4) -> F-7(5), D-5(4) -> F-7(4) and D-5(4) -> F-7(3) corresponding to the typical (4)f -> (4)f infra-configuration forbidden transitions of Tb3+ are appeared and the major emission peak at 540 nm is due to D-5(4) -> F-7(5) transitions of Tb3+. On the other hand, the emission spectrum of Eu doped BaSnO3 phosphor exhibits a series of emission bands, which are attributed to the D-5(0) -> F-7(j) (j = 0-4) transitions of Eu3+ ions. The dominant emission of Eu3+ corresponding to the electric dipole transition D-5(0) -> F-7(2) is located at 613 nm. The sharp emission properties exhibited demonstrate that the BaSnO3 is a suitable host for rare-earth ion doped phosphor material. This work clearly confirms the unusual near infrared (NIR) PL discovered by H. Mizoguchi et al. in BaSnO3 at room temperature. (C) 2013 Elsevier B.V. All rights reserved.
dc.identifier.issn0925-8388
dc.identifier.other1873-4669
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/10401
dc.language.isoEnglish
dc.publisherELSEVIER SCIENCE SA
dc.subjectLUMINESCENCE PROPERTIES
dc.subjectRED LUMINESCENCE
dc.subjectBASNO3 POWDERS
dc.subjectGAS SENSOR
dc.subjectSR
dc.subjectBASN1-XSBXO3
dc.subjectINTENSITIES
dc.subjectOXIDE
dc.titleRadioluminescence and photoluminescence characterization of Eu and Tb doped barium stannate phosphor ceramics
dc.typeReview

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