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Sol-gel technique for the generation of europium-doped mesoporous and dense thin films: A luminescent study

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorLEROY, Celine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJUBERA, Veronique
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTRÉGUER-DELAPIERRE, Mona
hal.structure.identifierCentre de recherches Paul Pascal [CRPP]
dc.contributor.authorBACKOV, R.
hal.structure.identifierLaboratoire de Chimie de la Matière Condensée de Paris (site ENSCP) [LCMCP (site ENSCP)]
dc.contributor.authorBOISSIÈRE, C.
hal.structure.identifierLaboratoire de Chimie de la Matière Condensée de Paris (site ENSCP) [LCMCP (site ENSCP)]
dc.contributor.authorGROSSO, D.
hal.structure.identifierLaboratoire de Chimie de la Matière Condensée de Paris (site ENSCP) [LCMCP (site ENSCP)]
dc.contributor.authorSANCHEZ, Carmen Navarro
hal.structure.identifierLaboratoire de Chimie de la Matière Condensée de Paris (site ENSCP) [LCMCP (site ENSCP)]
dc.contributor.authorVIANA, B.
hal.structure.identifierLaboratoire de Chimie de la Matière Condensée de Paris (site ENSCP) [LCMCP (site ENSCP)]
dc.contributor.authorPELLÉ, F.
dc.date.issued2009
dc.identifier.issn0022-2313
dc.description.abstractEnIn this paper, a series of europium-activated titania mesoporous and dense thin films were prepared by sol-gel process. Structural characterizations show that high europium ion loadings can be incorporated into titanium dioxide walls with out destroy in the mesoporous arrangement. However, high europium content locks the titanium dioxide crystallization process. Upon 10% europiumions loading, mesoporous thin films are mainlyamorphous, whereas dense ones are still partially crystallized. Eu3+ ion luminescence has been investigated by exciting through the semiconductor host lattice. Emission features reveal that europiumions adopt similar environments (nano crystalline and glassy-likeones) in both dense and mesoporous thin films. Fluctuations of europium emission under continuous UV excitation have been observed. One observes that the effect strongly depends on the thin films'crystalline character which is strongly related with the texturation and existence at the mesoscopic length scale.
dc.language.isoen
dc.publisherElsevier
dc.subject.enMesoporous thinfilms
dc.subject.enTitania
dc.subject.enEuropium
dc.subject.enEmission fluctuation
dc.subject.enNanocrystallites
dc.title.enSol-gel technique for the generation of europium-doped mesoporous and dense thin films: A luminescent study
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jlumin.2008.11.026
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Luminescence
bordeaux.page1641-1645
bordeaux.volume129
bordeaux.issue1-2
bordeaux.peerReviewedoui
hal.identifierhal-00432309
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00432309v1
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