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Phosphors based on NaZr2(PO4)3-type calcium and strontium phosphates activated with Eu2+ and Sm3+

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGLORIEUX, Benoit
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorJUBERA, Veronique
hal.structure.identifierFaculty of Chemistry
dc.contributor.authorORLOVA, Elena Arkadevna
hal.structure.identifierFaculty of Chemistry
dc.contributor.authorKANUNOV, Anton
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGARCIA, Alain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPALLIER, Camille
hal.structure.identifierFaculty of Chemistry
dc.contributor.authorOLENEVA, Tatyana
dc.date.issued2013
dc.identifier.issn0020-1685
dc.description.abstractEnCa0.5Zr2(PO4)3:Eu2+, Sr0.5Zr2(PO4)3:Eu2+, and Ca0.5Zr2(PO4)3:Eu2+, Sm3+ orthophosphates prepared through precipitation using sol-gel processes are analogs of NaZr2(PO4)3 (NZP) and crystallize in space group R Their crystallographic parameters determined by X ray diffraction are consistent with the interatomic distances extracted from EXAFS data. Their luminescence spectra obtained under excitation in the range 300-400 nm contain emission bands between 425 and 525 nm. Substitution of the larger sized cat ions Eu2+ and Sm3+ for Ca2+ shifts the emission bands to shorter wavelengths and reduces their width because of the decrease in the effect of the crystal field. Analysis of the spectra indicates that Eu2+ occupies two types of crystallographic sites (independent interstitial sites of different sizes and shapes in the NZP framework structure). Codoping with Eu and Sm has ensured luminescence with chromaticity coordinates approaching those of white light: (x = 0.27, y = 0.34).
dc.language.isoen
dc.publisherMAIK Nauka/Interperiodica
dc.subject.enOrthophosphates
dc.subject.enSol gel
dc.subject.enCrystallography
dc.title.enPhosphors based on NaZr2(PO4)3-type calcium and strontium phosphates activated with Eu2+ and Sm3+
dc.typeArticle de revue
dc.identifier.doi10.1134/S0020168513010032
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Materials / Neorganicheskie Materialy
bordeaux.page82-88
bordeaux.volume49
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00746849
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00746849v1
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