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Emission Colours of Bistable Photochromic Compounds: Ce-Doped Alkaline (Rb, K, Na) – Indium Fluorides.

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDON, Manuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorANDRON, Ines
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDEMOURGUES, Alain
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRODRIGUEZ, Vincent
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGUES, Alexandre
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDURAND, Etienne
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHIRON, Anthony
hal.structure.identifierLaboratoire réactivité et chimie des solides - UMR CNRS 7314 [LRCS]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorFRAYRET, Christine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJUBERA, Veronique
dc.date.issued2022
dc.description.abstractEnThe structural and spectroscopic properties of three Ce3+-doped A3InF6 compounds (with A+= Rb+, K+, Na+) are investigated. Containing indium, they all exhibit 2Ce3+ + In3+ ↔ In+ + 2Ce4+ redox processes induced by UV irradiation between Ce3+ and In3+ cations. The photochromo-luminescent behaviour and associated kinetics, with the Ce3+ and In+ ion emission quenching through the redox equation, respectively, are investigated. Our studies highlight that different mechanisms (surface vs. bulk) need be considered to explain the decrease in the blue (Ce3+) and orange (In+) emission curves. Moreover, the comparison of Ce3+-doped Rb2KInF6, K2NaInF6 elpasolites and K3InF6 cryolite spectral distributions shows that changing the nature of the alkali cation makes colour tuning possible. The shift of the Ce3+ and In+ colour emissions between the three as-prepared compounds is mainly due to the variation in the ionic-covalent nature of the chemical bonds around the active cation sites. The final calculated optical difference between the two bistable states varies from 0.31 to 0.48 depending on the alkali subnetwork.
dc.description.sponsorshipFluorures inorganiques photochromes
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.subject.enLuminescence
dc.subject.enPhotochromism
dc.subject.enFluorides
dc.subject.enStructures
dc.subject.enElpasolite
dc.subject.enCryolite
dc.subject.enCerium
dc.subject.enIndium
dc.title.enEmission Colours of Bistable Photochromic Compounds: Ce-Doped Alkaline (Rb, K, Na) – Indium Fluorides.
dc.typeArticle de revue
dc.identifier.doi10.1039/D2MA00840H
dc.subject.halChimie/Matériaux
bordeaux.journalMaterials Advances
bordeaux.page7061-7071
bordeaux.volume3
bordeaux.issue18
bordeaux.peerReviewedoui
hal.identifierhal-03738624
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03738624v1
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