A chromaticity-tunable garnet-based phosphor-in-glass color converter applicable in w-LED

被引：49

作者：

Lin, Zebin ^{[1
]}

Lin, Hang ^{[1
,2
]}

Xu, Ju ^{[1
,2
]}

Huang, Feng ^{[1
,2
]}

Chen, Hui ^{[1
]}

Wang, Bo ^{[1
]}

Wang, Yuansheng ^{[1
,2
]}

机构：

[1] Univ Chinese Acad Sci, Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[2] Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2016年 / 36卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Glass ceramic; Garnet; Optical materials; Light emitting diodes; Luminescence; RED PHOSPHOR; WHITE; LUMINESCENCE;

D O I：

10.1016/j.jeurceramsoc.2016.01.024

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：

Phosphor-in-glass (PiG) color converter, being regarded as a good encapsulant material for long-lifetime high-powered white light-emitting-diode (LED), has developed rapidly in the recent years. However, it still remains a challenge to achieve fine chromaticity tuning of PiG for high-quality indoor lighting. Herein, a transparent garnet-based PiG was successfully prepared by introducing the Y3Mg2AlSi2O12:Ce3+ orange phosphor and the Y3Al4.6Ga0.4O12:Ce3+ green phosphor into TeO2-based glass matrix. The microstructure and luminescent properties of the PiG were investigated in detail. After optimizing the weight ratio of green phosphor to orange phosphor as well as the PiG thickness, facile chromaticity tuning to follow along Planckian locus in the thus-fabricated LED is achieved; correspondingly the correlated color temperature is adjusted from cool white to warm white. Hopefully, the developed garnet-based PiG is applicable in the long-lifetime color-tunable w-LEDs. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：1723 / 1729

页数：7

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