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hal.structure.identifierLaboratoire de Chimie du Solide Minéral
dc.contributor.authorEL ABED, Ahmed
hal.structure.identifierLaboratoire de Chimie du Solide Minéral
dc.contributor.authorMESNAOUI, Mohamed
hal.structure.identifierLaboratoire de Chimie du Solide Minéral
dc.contributor.authorMAAZAZ, Mohamed
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPARENT, Claude
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorLE FLEM, Gilles
dc.date.issued2003
dc.identifier.issn0022-4596
dc.description.abstractEnCrystalline and glassy K1−xTlxZn(PO3)3 polyphosphates have been synthesized and characterized. UV–visible spectroscopy was systematically used in order to analyze the optical properties of Tl+ ions both in crystalline and glassy forms with the similar compositions. The investigated polyphosphates can be considered as a model system since the spectroscopic properties of Tl+ ions in the glasses could be deduced by comparison with those in crystals. From structural point of view, in the crystalline forms the thallium ions are six-fold coordinated in a dissymmetrical oxygenated sites. Three luminescences (α, AX, AT) have been then observed and were attributed to the isolated Tl+ ions. In the glassy forms, an additional luminescence (D) has been detected in the low-energy range and was assigned to the Tl+ pairs formation. The relationship between the Tl+ site symmetry and its optical properties is discussed in the context of the Fukuda's model.
dc.language.isoen
dc.publisherElsevier
dc.subjectGlasses
dc.subjectPhosphates
dc.subjectTl+ luminescence
dc.title.enLuminescent properties of the potassium zinc phosphates of composition K1−xTlxZn(PO3)3
dc.typeArticle de revue
dc.identifier.doi10.1016/S0022-4596(02)00165-2
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Solid State Chemistry
bordeaux.page450-457
bordeaux.volume170
bordeaux.issue2
bordeaux.peerReviewedoui
hal.identifierhal-00250293
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00250293v1
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