Structural and luminescence effects of Ga co-doping on Ce-doped yttrium aluminate based phosphors

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dc.contributor.authorAyvacikli, M
dc.contributor.authorCanimoglu, A
dc.contributor.authorMuresan, LE
dc.contributor.authorTudoran, LB
dc.contributor.authorGuinea, JG
dc.contributor.authorKarabulut, Y
dc.contributor.authorJorge, A
dc.contributor.authorKarali, T
dc.contributor.authorCan, N
dc.date.accessioned2024-07-18T12:06:22Z
dc.date.available2024-07-18T12:06:22Z
dc.description.abstractHerein, we primarily focus on luminescence spectrum measurements of various types of green emitting yttrium aluminate phosphors modified with gallium (Y3Al5-xGaxO12) synthesised by solid state reaction. The luminescent emission of samples depends on sample temperature and excitation radiation such as incident X-ray, electron and laser beam. Here, we measured radioluminescence (RL), cathodoluminescence (CL), photoluminescence (PL) along with XRD in order to clarify relationship between lattice defects and the spectral luminescence emissions. The RL and CL spectra of YAG:Ce exhibit an emission band ranging from 300 to 450 nm related to Y-Al antisite defects. The broad emission band of garnet phosphors is shifted from 526 nm to 498 nm with increasing of Ga3+ content, while full width at half maximum (FWHM) of the band tends to be greater than the width of unmodified YAG: Ce garnet. Deconvolution of the spectrum reveals that three emission bands centred at 139, 234 and 294 degrees C occur in aluminate host garnets. (C) 2016 Elsevier B.V. All rights reserved.
dc.identifier.issn0925-8388
dc.identifier.other1873-4669
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/10360
dc.language.isoEnglish
dc.publisherELSEVIER SCIENCE SA
dc.subjectOPTICAL-PROPERTIES
dc.subjectYAG
dc.subjectY3AL5O12-CE
dc.subjectPARTICLES
dc.subjectEMISSION
dc.subjectPOWDERS
dc.subjectLUAG
dc.titleStructural and luminescence effects of Ga co-doping on Ce-doped yttrium aluminate based phosphors
dc.typeArticle

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