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Comparison of structural and spectroscopic properties of Ho3+-doped niobate compounds

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGUENÉ-GIRARD, Simon
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCOURTOIS, Julia
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorDUSSAUZE, Marc
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorHEINTZ, Jean-Marc
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFARGUES, Alexandre
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorROGER, Jérôme
hal.structure.identifierUniversidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
dc.contributor.authorNALIN, Marcelo
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
dc.date.issued2021
dc.identifier.issn0025-5408
dc.description.abstractEnHo3+-doped YNbO4 and Y3NbO7 phosphors were synthesised via a co-precipitation synthesis route. Structural characterisation and spectroscopic properties were performed as a function of the Ho3+ concentration. The Rietveld type-refinement confirms the stabilisation of the pure monoclinic Fergusonite YNbO4 phase at the highest temperatures, but the quadratic phase is stabilised for the lowest temperature, whereas a pure cubic fluorite Y3NbO7 phase was observed for all of the heat treatments. Raman and infrared spectroscopies were used to compare the cation-oxygen vibrational modes. Emission spectra and up-conversion processes were obtained under excitation at 445 and 975 nm respectively. For a similar Ho3+ content, the energy transfers observed show differences between the two crystalline compounds that are related to a stronger interaction between the holmium cations in the fluorite host lattice.
dc.description.sponsorshipCéramiques luminescentes de forte efficacité LASER dans la fenêtre 1.7-2.7 microns - ANR-20-CE08-0016
dc.language.isoen
dc.publisherElsevier
dc.subject.enenergy transfer
dc.subject.enrare earth
dc.subject.enniobate
dc.subject.enluminescence
dc.subject.enRaman
dc.title.enComparison of structural and spectroscopic properties of Ho3+-doped niobate compounds
dc.typeArticle de revue
dc.identifier.doi10.1016/j.materresbull.2021.111451
dc.subject.halChimie/Matériaux
bordeaux.journalMaterials Research Bulletin
bordeaux.page111451
bordeaux.volume143
bordeaux.peerReviewedoui
hal.identifierhal-03273669
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03273669v1
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