Spectral dependency of Eu2+-activated silicate phosphors on the composition for LED application

被引：23
|
作者：
Kim, Sang Hyeon [1 ]
Lee, Hyo Jin [1 ]
Kim, Kyeong Phil [1 ]
Yoo, Jae Soo [1 ]
机构：
[1] Chung Ang Univ, Dept Chem Engn, Seoul 156756, South Korea
来源：
KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2006年 / 23卷 / 04期
关键词：
white LED; phosphor; silicate; spectrum;
D O I：
10.1007/BF02706812
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An Sr2SiO4-Ba2SiO4 material system doped by Eu2+ was studied for light emitting diodes (LEDs) application. The main concern was the precise control of excitation and emission spectra for maximum light yield and color coordinate, which was carried out by changing the composition of the alkaline earth ions in host lattice. The Sr2SiO4 : Eu-Ba2SiO4 : Eu system was found to be excellent for white LED applications with excitation in the 3 80-465 nm region. Especially, the yellow light intensity from (Sr,Ba)SiO4 : Eu phosphors was comparable to YAG:Ce phosphors in case of blue LED excitation.
引用
收藏
页码：669 / 671
页数：3
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