DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kirakosyan, Artavazd Gh | ko |
dc.contributor.author | Jeon, DukYoung | ko |
dc.date.accessioned | 2013-03-11T03:28:00Z | - |
dc.date.available | 2013-03-11T03:28:00Z | - |
dc.date.created | 2012-04-19 | - |
dc.date.created | 2012-04-19 | - |
dc.date.issued | 2012 | - |
dc.identifier.citation | JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.159, no.2, pp.J29 - J33 | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | http://hdl.handle.net/10203/98144 | - |
dc.description.abstract | Sr2Si5N8:Eu2+ red-emitting nitridosilicate phosphor was prepared by a low temperature modified solid-state metathesis (MSSM) approach. The method is based on the nitridation of strontium chloride in presence of silicon and lithium nitrides. Lithium nitride was used as a solid source of nitrogen and as reduction agent for strontium chloride. We revealed that the formation of Sr2Si5N8 occurs via solid+liquid mechanism through intermediate SrSiN2 phase and found that Sr2Si5N8:Eu2+ can be synthesized by MSSM approach starting at a considerably low temperature (1100 degrees C). We first showed the possibilities of using flux materials during the synthesis of complex alkaline earth-based nitridosilicates. The phosphor particles synthesized at optimized condition (1300 degrees C and 6 hours) show a rod-like morphology in 1-5 mu m width and 5-10 mu m length. The color coordinate (CIE) of Sr2Si5N8:Eu2+ (2 wt%) are (0.6382; 0.3612) and emission spectrum exhibits a broad-band peaking at 628 nm. The synthesized phosphor was applied to LED package and white light has been obtained with CCT similar to 4700 K and R-a similar to 90-92 depending on driving current. The MSSM method has proven to be a cost-effective and facile way to prepare nitridosilicate phosphor with outstanding performance. An approximate chemical pathway for Sr2Si5N8:Eu2+ formation is proposed. (C) 2011 The Electrochemical Society. [DOI: 10.1149/2.058202jes] All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELECTROCHEMICAL SOC INC | - |
dc.subject | LED CONVERSION PHOSPHORS | - |
dc.subject | CA-ALPHA-SIALON | - |
dc.subject | LUMINESCENCE PROPERTIES | - |
dc.subject | NITRIDATION METHOD | - |
dc.subject | M2SI5N8EU2+ M | - |
dc.subject | GAS-REDUCTION | - |
dc.subject | SR | - |
dc.subject | BA | - |
dc.subject | DIODES | - |
dc.subject | EU | - |
dc.title | Low-Temperature Synthesis of Sr2Si5N8:Eu2+ Red-Emitting Phosphor by Modified Solid-State Metathesis Approach and Its Photoluminescent Characteristics | - |
dc.type | Article | - |
dc.identifier.wosid | 000298637500095 | - |
dc.identifier.scopusid | 2-s2.0-84855312266 | - |
dc.type.rims | ART | - |
dc.citation.volume | 159 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | J29 | - |
dc.citation.endingpage | J33 | - |
dc.citation.publicationname | JOURNAL OF THE ELECTROCHEMICAL SOCIETY | - |
dc.identifier.doi | 10.1149/2.058202jes | - |
dc.contributor.localauthor | Jeon, DukYoung | - |
dc.contributor.nonIdAuthor | Kirakosyan, Artavazd Gh | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LED CONVERSION PHOSPHORS | - |
dc.subject.keywordPlus | CA-ALPHA-SIALON | - |
dc.subject.keywordPlus | LUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | NITRIDATION METHOD | - |
dc.subject.keywordPlus | M2SI5N8EU2+ M | - |
dc.subject.keywordPlus | GAS-REDUCTION | - |
dc.subject.keywordPlus | SR | - |
dc.subject.keywordPlus | BA | - |
dc.subject.keywordPlus | DIODES | - |
dc.subject.keywordPlus | EU | - |
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