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hal.structure.identifierInstitut des Matériaux Jean Rouxel [IMN]
dc.contributor.authorCLABAU, Frédéric
hal.structure.identifierInstitut des Matériaux Jean Rouxel [IMN]
dc.contributor.authorROCQUEFELTE, Xavier
hal.structure.identifierInstitut des Matériaux Jean Rouxel [IMN]
dc.contributor.authorJOBIC, Stéphane
hal.structure.identifierInstitut des Matériaux Jean Rouxel [IMN]
dc.contributor.authorDENIARD, Philippe
hal.structure.identifierDepartment of Chemistry, North Carolina Raleigh
dc.contributor.authorWHANGBO, Myung-Hwan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGARCIA, Alain
hal.structure.identifierCentre de Recherches d'Aubervilliers
dc.contributor.authorLE MERCIER, Thierry
dc.date.issued2007
dc.identifier.issn1293-2558
dc.description.abstractEnThe mechanism of phosphorescence in SrAl<sub>2</sub>O<sub>4</sub>:Eu,Dy material is discussed on the basis of a thermo-activated release of electrons trapped at oxygen vacancy sites. The depths and concentration of the electron traps are strongly affected by codoping with trivalent lanthanide cations Ln<sup>3+</sup>. This finding is rationalized by comparing the ionization potentials of the dopant cation Eu<sup>2+</sup>, the codopant cation Ln<sup>3+</sup> and the substituted cation Sr<sup>2+</sup>. Such a use of ionization potentials provides a practical guide with which the variation of the phosphorescent decay time in the codoped derivatives of SrAl<sub>2</sub>O<sub>4</sub>:Eu is predicted.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPhosphorescence
dc.subject.enMechanism
dc.subject.enSrAl2O4
dc.subject.enElectron trap
dc.subject.enDopant
dc.subject.enTrap depth
dc.title.enOn the phosphorescence mechanism in SrAl<sub>2</sub>O<sub>4</sub>:Eu<sup>2+</sup> and its codoped derivatives
dc.typeArticle de revue
dc.identifier.doi10.1016/j.solidstatesciences.2007.03.020
dc.subject.halChimie/Matériaux
bordeaux.journalSolid State Sciences
bordeaux.page608-612
bordeaux.volume9
bordeaux.issue7
bordeaux.peerReviewedoui
hal.identifierhal-00359214
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00359214v1
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