Color Point Tuning by Partial Ba2+ Substitution of Ca 2+ in (Ca1-xBax)3(PO 4)2 Phosphor for White Light Emitting Diodes
dc.contributor.author | Li, Y. | |
dc.contributor.author | Yu, H. | |
dc.contributor.author | Deng, D. | |
dc.contributor.author | Hua, Y. | |
dc.contributor.author | Zhao, S. | |
dc.contributor.author | Jia, Guohua | |
dc.contributor.author | Wang, H. | |
dc.contributor.author | Huang, L. | |
dc.contributor.author | Li, Y. | |
dc.contributor.author | Li, C. | |
dc.contributor.author | Xu, S. | |
dc.date.accessioned | 2017-01-30T12:11:47Z | |
dc.date.available | 2017-01-30T12:11:47Z | |
dc.date.created | 2016-11-23T19:30:26Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Li, Y. and Yu, H. and Deng, D. and Hua, Y. and Zhao, S. and Jia, G. and Wang, H. et al. 2013. Color Point Tuning by Partial Ba2+ Substitution of Ca 2+ in (Ca1-xBax)3(PO 4)2 Phosphor for White Light Emitting Diodes. Journal of Solid State Chemistry. 199: pp. 248-252. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/19078 | |
dc.identifier.doi | 10.1016/j.jssc.2012.12.012 | |
dc.description.abstract |
A potential phosphor (Ca1-xBax)3(PO 4)2:Eu2+ was synthesized by a solid-state reaction. X-ray diffraction (XRD) analysis confirmed the formation of (Ca 1-xBax)3(PO4)2 crystal phase. With the Ba2+ content increasing, the bandgap of (Ca 1-xBax)3(PO4)2 increases from 5.5 to 5.9 eV, and the crystal field splitting between the two lowest Eu2+ 5d levels is enhanced from 6085 to 6808 cm-1 in (Ca1-xBax)3(PO4)2. As a result, the emission peak of (Ca1-xBax) 3(PO4)2: Eu2+ shifts from 447 to 550 nm, which means that the emission color alters from blue to yellow. The redshift of the emission band of (Ca1-xBax) 3(PO4)2:Eu2+ was explained based on crystal field strength, covalence, Stokes shift. The results revealed that partial substitution of Ca2+ by Ba2+ ions was therefore a much considerable way to shift the color point of LEDs. © 2013 Elsevier Inc. All rights reserved. | |
dc.publisher | Elsevier | |
dc.title | Color Point Tuning by Partial Ba2+ Substitution of Ca 2+ in (Ca1-xBax)3(PO 4)2 Phosphor for White Light Emitting Diodes | |
dc.type | Journal Article | |
dcterms.source.volume | 199 | |
dcterms.source.startPage | 248 | |
dcterms.source.endPage | 252 | |
dcterms.source.issn | 0022-4596 | |
dcterms.source.title | Journal of Solid State Chemistry | |
curtin.department | Nanochemistry Research Institute | |
curtin.accessStatus | Fulltext not available |
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