Spectrum regulation of YAG:Ce transparent ceramics with Pr, Cr doping for white light emitting diodes application

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	Spectrum regulation of YAG:Ce transparent ceramics with Pr, Cr doping for white light emitting diodes application
	Luo, Zhaohua; Wu, Guoqing; Liu, Yongfu; Jiang, Haochuan; Zhao, Jingtai; Qin, Haiming; Feng, Shaowei; Qiao, Jianwei; Jiang, Jun
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2017
卷号	37 期号:10 页码:3403-3409
ISSN号	0955-2219
英文摘要	YAG:Ce transparent ceramics with high luminous efficiency and color render index were prepared via a solid state reaction-vacuum sintering method. Cr3+ and Pr3+ were applied to expand the spectrum of YAG:Ce transparent ceramics. As prepared ceramics exhibit luminescence spectrum ranging from 500 nm to 750 nm, which almost covers full range of visible light. After the concentration optimization of Ce3+, Pr3+ and Cr3+, high quality white light was obtained by coupling the YAG:Ce,Pr,Cr ceramics with commercial blue LED chips. Color coordinates of the YAG:Ce,Pr,Cr ceramics under 450 nm LED excitation vary from cold white light to warm white light region. The highest luminous efficiency of WLEDs encapsulated by transparent YAG:Ce,Pr,Cr ceramic was 89.3 Im/W, while its color render index can reach nearly 80. Energy transfers between Ce3+ -> Pr3+ and Ce3+ -> Cr3+ were proved in co-doped ceramic system. Transparent luminescence ceramics accomplished in this work can be quite prospective for high power WLED5 application. (C) 2017 Elsevier Ltd. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13692]
专题	2017专题
推荐引用方式 GB/T 7714	Luo, Zhaohua,Wu, Guoqing,Liu, Yongfu,et al. Spectrum regulation of YAG:Ce transparent ceramics with Pr, Cr doping for white light emitting diodes application[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2017,37(10):3403-3409.
APA	Luo, Zhaohua.,Wu, Guoqing.,Liu, Yongfu.,Jiang, Haochuan.,Zhao, Jingtai.,...&Jiang, Jun.(2017).Spectrum regulation of YAG:Ce transparent ceramics with Pr, Cr doping for white light emitting diodes application.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,37(10),3403-3409.
MLA	Luo, Zhaohua,et al."Spectrum regulation of YAG:Ce transparent ceramics with Pr, Cr doping for white light emitting diodes application".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 37.10(2017):3403-3409.