Spectrum regulation of YAG:Ce/YAG:Cr/YAG:Pr phosphor ceramics with barcode structure prepared by tape casting

被引:7
作者
Liu, Xin [1 ,2 ]
Zhu, Yuxuan [3 ]
Cheng, Ziqiu [1 ,2 ]
Wang, Yanbin [1 ,4 ]
Tian, Feng [1 ,2 ]
Liu, Ziyu [1 ,2 ]
Li, Wanyuan [1 ,4 ]
Zhou, Guohong [1 ,2 ]
Zou, Jun [3 ,8 ]
Kosyanov, Denis Yu. [5 ,6 ]
Li, Jiang [1 ,2 ,7 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, Transparent Ceram Res Ctr, Shanghai, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing, Peoples R China
[3] Shanghai Inst Technol, Sch Sci, Shanghai, Peoples R China
[4] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang, Peoples R China
[5] Far Eastern Fed Univ, SEC Adv Ceram Mat, Vladivostok, Russia
[6] Russian Acad Sci, Inst Automat & Control Proc, Far Eastern Branch, Vladivostok, Russia
[7] Chinese Acad Sci, Shanghai Inst Ceram, Transparent Ceram Res Ctr, Shanghai 201899, Peoples R China
[8] Shanghai Inst Technol, Sch Sci, Shanghai, Peoples R China
基金
俄罗斯科学基金会;
关键词
barcode structure; color rendering; composite ceramics; tunability; LIGHT-EMITTING-DIODES; COLOR RENDERING INDEX; TRANSPARENT CERAMICS; CEYAG PHOSPHOR; WHITE; YAGCE; EFFICIENCY; CRYSTAL; GLASS; PR;
D O I
10.1111/jace.19508
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
YAG:Ce/YAG:Cr/YAG:Pr composite phosphor ceramics with barcode structure were prepared by tape casting combined with the solid-state reaction method. This structure provides a convenient and effective method for regulating the optical parameters such as luminous efficacy (LE), color rendering, and correlated color temperature (CCT) of white light-emitting diodes/laser diodes (LEDs/LDs). For the sample with a thickness ratio of 6:6:6 for YAG:Ce, YAG:Cr, and YAG:Pr, the in-line transmittance reaches 60% at 800 nm, and it shows a good optical performance with the LE of 106 lm/W, the color gamut (Rg) of 77, the color fidelity index (Rf) of 86, and the CCT of 7642 K. The electroluminescence spectra and color coordinates can be adjusted by changing the ratio of each component in the composite ceramic and the thickness of the ceramic because the tape casting method allows precise control of the thickness of each ceramic layer. The high tunability provides more freedom in the performance design of composite phosphor ceramics and makes them the most promising candidate for high brightness white LEDs/LDs.
引用
收藏
页码:1061 / 1069
页数:9
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