DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Ji-Yeon | ko |
dc.contributor.author | Im, Won-Bin | ko |
dc.contributor.author | Lee, Ga-yeon | ko |
dc.contributor.author | Jeon, Duk-Young | ko |
dc.date.accessioned | 2013-03-12T04:10:53Z | - |
dc.date.available | 2013-03-12T04:10:53Z | - |
dc.date.created | 2012-05-31 | - |
dc.date.created | 2012-05-31 | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.18, pp.8793 - 8798 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/10203/101290 | - |
dc.description.abstract | A 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.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | LUMINESCENCE PROPERTIES | - |
dc.subject | DIODE | - |
dc.subject | EMISSION | - |
dc.subject | CE3+ | - |
dc.title | Near UV-pumped yellow-emitting Eu2+-doped Na3K(Si1-xAlx)(8)O-16 +/-delta phosphor for white-emitting LEDs | - |
dc.type | Article | - |
dc.identifier.wosid | 000302634800011 | - |
dc.identifier.scopusid | 2-s2.0-84859816425 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 18 | - |
dc.citation.beginningpage | 8793 | - |
dc.citation.endingpage | 8798 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.identifier.doi | 10.1039/c2jm16739e | - |
dc.contributor.localauthor | Jeon, Duk-Young | - |
dc.contributor.nonIdAuthor | Im, Won-Bin | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | DIODE | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | CE3+ | - |
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