Effect of substitution of nitrogen ions to red-emitting Sr3B2O6-3/2xNx:Eu2+ oxy-nitride phosphor for the application to white LED

被引：15

作者：

Jung, Sang Hoon ^{[1
]}

Kang, Dong Seok ^{[1
]}

Jeon, Duk Young ^{[1
]}

机构：

[1] Republ Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 326卷 / 01期

关键词：

Borate; Nitride; Phosphor; Light-emitting diodes; LUMINESCENCE PROPERTIES;

D O I：

10.1016/j.jcrysgro.2011.01.074

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The luminescence properties of orange-red-emitting Eu2+ activated Sr3B2O6-3/2xNx were optimized for application to blue/near UV light-emitting diodes (LEDs). Sr3B2O6-3/2xNx:Eu2+ phosphor showed broad orange-red emission peaking at 600-650 nm under blue and n-UV excitations of 450 and 360 nm, respectively; the emission peak of phosphor was affected by nitrogen ion substitution. Boron nitride raw materials affect luminescence properties of phosphor; a small amount of BN reacts as a flux for synthesis of Sr3B2O6 and a large amount of BN helps Sr3B2O6-3/2xNx:Eu2+ phosphor to have longer-wavelength emission peak. A 447 nm-emitting blue LED-pumped white LED with a mixture of Sr3B2O6-3/2xNx:Eu2+ (x=1) and Ba2SiO4:Eu2+ green-emitting phosphor was fabricated; it is observed that it showed color coordinates of (0.3648, 0.3605) and CRI value of 96. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：116 / 119

页数：4

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