Synthesis and Photoluminescence Properties of a Novel Red-Emitting Na2Y2Ti3O10:Eu3+,Sm3+ Phosphor for White-Light-Emitting Diodes

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dc.contributor.authorKang, Dongseokko
dc.contributor.authorYoo, Hyoung Sunko
dc.contributor.authorJung, Sang Hoonko
dc.contributor.authorKim, Hyunkiko
dc.contributor.authorJeon, DukYoungko
dc.date.accessioned2013-03-09T08:37:18Z-
dc.date.available2013-03-09T08:37:18Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2011-12-
dc.identifier.citationJOURNAL OF PHYSICAL CHEMISTRY C, v.115, no.49, pp.24334 - 24340-
dc.identifier.issn1932-7447-
dc.identifier.urihttp://hdl.handle.net/10203/95889-
dc.description.abstractA novel red-emitting Na2Y2Ti3O10:Eu3+,Sm3+ phosphor was synthesized for the first time, and its photoluminescence (PL) properties were investigated for application to white-light-emitting diodes (W-LEDs). The Na2Y1Eu1Ti3O10 phosphor showed a 3-fold higher PL intensity compared to that of a commercial red-emitting Y2O2S:Eu3+ phosphor under 396 nm irradiation. Sm3+ ions were introduced as a sensitizer, and they increased the PL intensity by up to 35% under 410 nm irradiation. The effects of introducing the sensitizer were investigated by measuring the quantum efficiencies and the time-resolved PL decay curves. The Na2Y1Eu1Ti3O10 phosphor exhibited remarkable resistance to thermal quenching, and a W-LED comprising the phosphor showed bright white emission with a color rendering index (R-a) of 83, a color temperature of 5556 K, and Commission Internationale de I'Eclairage (CIE) color coordinates of (0.3306, 0.3754).-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.subjectLUMINESCENCE PROPERTIES-
dc.subjectLAYERED PEROVSKITES-
dc.subjectENERGY-TRANSFER-
dc.subjectEU3+ IONS-
dc.subjectMECHANISM-
dc.subjectSYSTEM-
dc.subjectOXIDES-
dc.subjectGD-
dc.subjectLN-
dc.titleSynthesis and Photoluminescence Properties of a Novel Red-Emitting Na2Y2Ti3O10:Eu3+,Sm3+ Phosphor for White-Light-Emitting Diodes-
dc.typeArticle-
dc.identifier.wosid000297609000037-
dc.identifier.scopusid2-s2.0-83455206133-
dc.type.rimsART-
dc.citation.volume115-
dc.citation.issue49-
dc.citation.beginningpage24334-
dc.citation.endingpage24340-
dc.citation.publicationnameJOURNAL OF PHYSICAL CHEMISTRY C-
dc.contributor.localauthorJeon, DukYoung-
dc.contributor.nonIdAuthorKang, Dongseok-
dc.contributor.nonIdAuthorYoo, Hyoung Sun-
dc.contributor.nonIdAuthorJung, Sang Hoon-
dc.contributor.nonIdAuthorKim, Hyunki-
dc.type.journalArticleArticle-
dc.subject.keywordPlusLUMINESCENCE PROPERTIES-
dc.subject.keywordPlusLAYERED PEROVSKITES-
dc.subject.keywordPlusENERGY-TRANSFER-
dc.subject.keywordPlusEU3+ IONS-
dc.subject.keywordPlusMECHANISM-
dc.subject.keywordPlusSYSTEM-
dc.subject.keywordPlusOXIDES-
dc.subject.keywordPlusGD-
dc.subject.keywordPlusLN-
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