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hal.structure.identifierLaser Department [CRNA]
dc.contributor.authorGUERBOUS, L.
hal.structure.identifierLASMEA
dc.contributor.authorDERBAL, M.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHAMINADE, Jean-Pierre
dc.date.issued2010
dc.identifier.issn0022-2313
dc.description.abstractEnRoom temperature steady and time resolved emission spectra of LiIn<sub>1−<i>x</i></sub>Tm<sub><i>x</i></sub>(WO4)2 (where thulium concentration is 0, 0.5, 1, 5 and 10 at%) blue phosphors, under UV excitation energy have been investigated. The concentration quenching effect on the blue emission, due to the (WO<sub>4</sub>)<sup>−2</sup> groups and <sup>1</sup>G<sub>4</sub>→<sup>3</sup>H<sub>6</sub> emission transition of Tm<sup>3+</sup> were studied. Two energy transfer mechanisms are shown. The first takes place between excited (WO<sub>4</sub>)<sup>−2</sup> groups and the <sup>1</sup>G<sub>4</sub> energy level of Tm<sup>3+</sup>, and is mainly analyzed by phonon-assisted energy transfer. The second mechanism is due to an energy transfer from the excited Tm<sup>3+</sup> ions to the surrounding ground state Tm<sup>3+</sup> ions. The non-exponential decay curves of the <sup>1</sup>G<sub>4</sub> level observed for higher concentrations are analyzed by the Inokuti–Hirayama model. We think that the quenching effect between Tm<sup>3+</sup> ions is mainly linked to the dipole–dipole interactions.
dc.language.isoen
dc.publisherElsevier
dc.subject.enTm3+
dc.subject.enDouble tungstate
dc.subject.enPhotoluminescence
dc.subject.enEnergy transfer
dc.title.enPhotoluminescence and energy transfer of Tm<sup>3+</sup> doped LiIn (WO<sub>4</sub>)<sub>2</sub> blue phosphors
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jlumin.2010.08.014
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Luminescence
bordeaux.page2469-2475
bordeaux.volume130
bordeaux.issue12
bordeaux.peerReviewedoui
hal.identifierhal-00544299
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00544299v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Luminescence&amp;rft.date=2010&amp;rft.volume=130&amp;rft.issue=12&amp;rft.spage=2469-2475&amp;rft.epage=2469-2475&amp;rft.eissn=0022-2313&amp;rft.issn=0022-2313&amp;rft.au=GUERBOUS,%20L.&amp;DERBAL,%20M.&amp;CHAMINADE,%20Jean-Pierre&amp;rft.genre=article


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