Near UV-pumped yellow-emitting Eu2+-doped Na3K(Si1-xAlx)(8)O-16 +/-delta phosphor for white-emitting LEDs

Cited 103 time in webofscience Cited 0 time in scopus
  • Hit : 364
  • Download : 742
DC FieldValueLanguage
dc.contributor.authorHan, Ji-Yeonko
dc.contributor.authorIm, Won-Binko
dc.contributor.authorLee, Ga-yeonko
dc.contributor.authorJeon, Duk-Youngko
dc.date.accessioned2013-03-12T04:10:53Z-
dc.date.available2013-03-12T04:10:53Z-
dc.date.created2012-05-31-
dc.date.created2012-05-31-
dc.date.issued2012-
dc.identifier.citationJOURNAL OF MATERIALS CHEMISTRY, v.22, no.18, pp.8793 - 8798-
dc.identifier.issn0959-9428-
dc.identifier.urihttp://hdl.handle.net/10203/101290-
dc.description.abstractA novel yellow-emitting phosphor, Na3K(Si1-xAlx)(8)O-16 +/-delta:Eu2+, peaking at 555 nm was synthesized and evaluated as a candidate for white-emitting LEDs. The structure refinement, luminescence properties of Na3K(Si1-xAlx)(8)O-16 +/-delta:Eu2+ phosphors as well as their thermal quenching and the fabrication of white-emitting LEDs were for the first time investigated. By partially substituting Si4+ with Al3+, the emission peak was shifted from 553 nm to 573 nm, giving a greenish yellow-yellow color, due to the splitting of the 5d energy level of Eu2+. By using a near-UV LED (395 nm) and a mixture of yellow-emitting (NaK)-K-3(Si1-xAlx)(8)O-16 +/-delta:Eu2+ phosphor and blue-emitting BaMgAl10O17:Eu2+ phosphor as light converters, we constructed an intense white-light-emitting LED. The white-light-emitting LED exhibited an excellent color-rendering index R-a of 90 at a correlated color temperature of 5952 K with CIE coordinates of (0.33, 0.29). The results of the white-emitting LED package combining 395 nm near UV chip with Y/B phosphors demonstrated the potential of the yellow-emitting Na3K(Si1-xAlx)(8)O-16 +/-delta:Eu2+ phosphor for UV LED application.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.subjectLUMINESCENCE PROPERTIES-
dc.subjectDIODE-
dc.subjectEMISSION-
dc.subjectCE3+-
dc.titleNear UV-pumped yellow-emitting Eu2+-doped Na3K(Si1-xAlx)(8)O-16 +/-delta phosphor for white-emitting LEDs-
dc.typeArticle-
dc.identifier.wosid000302634800011-
dc.identifier.scopusid2-s2.0-84859816425-
dc.type.rimsART-
dc.citation.volume22-
dc.citation.issue18-
dc.citation.beginningpage8793-
dc.citation.endingpage8798-
dc.citation.publicationnameJOURNAL OF MATERIALS CHEMISTRY-
dc.identifier.doi10.1039/c2jm16739e-
dc.contributor.localauthorJeon, Duk-Young-
dc.contributor.nonIdAuthorIm, Won-Bin-
dc.type.journalArticleArticle-
dc.subject.keywordPlusLUMINESCENCE PROPERTIES-
dc.subject.keywordPlusDIODE-
dc.subject.keywordPlusEMISSION-
dc.subject.keywordPlusCE3+-
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 103 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0