Methods to improve the fluorescence intensity of CaS:Eu2+ red-emitting phosphor for white LED

被引：183

作者：

Guo, Chongfeng ^{[1
]}

Huang, Dexiu

Su, Qiang

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China

[2] Sun Yat Sen Univ, Sch Chem & Chem Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2006年 / 130卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

luminescence; phosphor; alkaline earth sulfide; LED;

D O I：

10.1016/j.mseb.2006.03.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to improve the fluorescence intensity of red-emitting phosphor based on alkaline earth sulfide CaS:Eu2+ for white LED (light-emitting diode), many methods were used. When the flux is NH4F, auxiliary activator is Er3+, intensity of phosphor CaS:Eu2+ has the strongest brightness. On the other hand, introduction of Sr could make the maximum excitation band shift to high energy, which make the phosphor match well with blue light GaN-based LED; Mg partly substitute for the alkaline earth Ca could make the intensity of red emitting phosphor increase greatly. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：189 / 193

页数：5

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