Highly efficient yellow-orange emission and superior thermal stability of Ba2YAl3Si2O12:Ce3+for high-power solid lighting

被引：19

作者：

Huang, Dayu ^{[1
,2
]}

Liu, Zhiyuan ^{[1
]}

Wang, Bo ^{[1
]}

Che, Hailin ^{[1
,2
]}

Zou, Man ^{[1
,2
]}

Zeng, Qingguang ^{[1
]}

Lian, Hongzhou ^{[2
]}

Lin, Jun ^{[1
,2
]}

机构：

[1] Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Guangdong, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2021年 / 104卷 / 01期

基金：

中国国家自然科学基金;

关键词：

glass; luminescence; phosphors; PHOSPHOR-IN-GLASS; CRYSTAL-CHEMISTRY; COLOR CONVERTER; LUMINESCENCE; CE3+; PHOTOLUMINESCENCE; MECHANISM;

D O I：

10.1111/jace.17439

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：

With great economic benefits, white LEDs (w-LEDs) have aroused worldwide attention. For phosphor-converted w-LED, highly efficient emission and good thermal stability of phosphor are significant parameters in practical application. Here, a yellow-orange garnet-structural phosphor, Ba2YAl3Si2O12:xCe(3+)(x = 0-0.1) (BYAS:xCe(3+)) was developed by solid solution design. The broad emission spectrum of the as-synthesized phosphor could guarantee the effective increase of the color rendering index when it is combined with the InGaN blue chip. Benefiting from the garnet-type highly rigid framework, BYAS:xCe(3+)exhibits an excellent thermal stability (50%@673K of the initial integrated intensity at 280 K) as well as high absolute quantum efficiency (80.4%@460 nm excitation light). Utilizing the approach of "phosphor-in-glass" (PiG), a high-power warm w-LED is achieved based on a blue LED plus PiG and the illuminance of this w-LED device can be as high as 4227 lx.

引用

页码：524 / 534

页数：11