White LED with high color rendering index based on Ca8Mg(SiO4)4Cl2:Eu2+ and ZnCdTe/CdSe quantum dot hybrid phosphor

被引：21
|
作者：
Wang, Rongfang [1 ]
Zhang, Jilin [2 ]
Xu, Xianmei [1 ]
Wang, Yilin [1 ]
Zhou, Liya [1 ]
Li, Bin [1 ]
机构：
[1] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
[2] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2012年 / 84卷
基金：
中国国家自然科学基金;
关键词：
Nanocrystalline materials; Phosphors; Optical materials and properties; LIGHT-EMITTING-DIODES; NANOCRYSTALS; CDSE; CDTE;
D O I：
10.1016/j.matlet.2012.06.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnCdTe/CdSe quantum dots (QDs) for white light-emitting diodes (LEDs) were prepared by aqueous synthesis, and their luminescence properties were investigated. The white LED consisted of ZnCdTe/CdSe QDs as the phosphor with a blue InGaN chip as the excitation source and showed a color rendering index (CRI) of 51.1 with Commission Internationale de l'Eclairage (CIE) coordinates of x=0.35 and y=0.32. White LED with a high CRI was obtained with the addition of Ca8Mg(SiO4)(4)Cl-2:Eu2+ phosphor, and the CRI of the hybrid phosphor white LED with CIE coordinates of x=0.27 and y=0.32 was improved to 88.2. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：24 / 26
页数：3
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