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Photoluminescence of Eu2+ in BaF2-rich fluorohalides and photostimulation after X-ray irradiation

hal.structure.identifierUniversité Ibn Zhor
dc.contributor.authorES-SAKHI, B.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGARCIA, Alain
hal.structure.identifierAgfa-Gevaert
dc.contributor.authorSTRUYE, L.
hal.structure.identifierAgfa-Gevaert
dc.contributor.authorWILLEMS, P.
hal.structure.identifierAgfa-Gevaert
dc.contributor.authorLEBLANS, P.
hal.structure.identifierUniversité Ibn Zhor
dc.contributor.authorMOUDDEN, A.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOUASSIER, Claude
dc.date.issued2003
dc.identifier.issn0921-5107
dc.description.abstractEnThe luminescence of Eu2+ has been investigated in two families of BaF2-rich fluorohalides, Ba12Cl5(1−x)Br5xF19 (x≤0.8) and Ba7Cl2(1−x)Br2xF12 (x≤0.5). In the two kinds of host lattices, under UV excitation Eu2+ shows an intense blue 5d→4f band emission at 300 K. At low temperature, in addition to the latter, 4f→4f lines are present in the near UV. The efficiency of the photostimulated luminescence (PSL) after X-ray irradiation has been measured and compared with that of BaXF:Eu (X=Cl, Br). High conversion efficiencies have been obtained with compositions Ba12Cl5(1−x)Br5xF19 for stimulation at 532 nm. The presence of bromine is beneficial. For all compositions a high stimulation energy (SE) is needed to excite Eu2+ ions through colour centres.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPhotoluminescence
dc.subject.enPhotostimulation
dc.subject.enStorage phosphors
dc.subject.enEu2+-doped barium chlorofluoride
dc.title.enPhotoluminescence of Eu2+ in BaF2-rich fluorohalides and photostimulation after X-ray irradiation
dc.typeArticle de revue
dc.identifier.doi10.1016/S0921-5107(02)00327-6
dc.subject.halChimie/Matériaux
bordeaux.journalMaterials Science and Engineering: B
bordeaux.page233-239
bordeaux.volume96
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-00198554
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00198554v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Science%20and%20Engineering:%20B&rft.date=2003&rft.volume=96&rft.issue=3&rft.spage=233-239&rft.epage=233-239&rft.eissn=0921-5107&rft.issn=0921-5107&rft.au=ES-SAKHI,%20B.&GARCIA,%20Alain&STRUYE,%20L.&WILLEMS,%20P.&LEBLANS,%20P.&rft.genre=article


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