High color rendering index white LED based on nano-YAG:Ce3+ phosphor hybrid with CdSe/CdS/ZnS core/shell/shell quantum dots

被引：32

作者：

Shen, Changyu ^{[1
]}

Chu, Jinlei ^{[1
]}

Qian, Feng ^{[2
]}

Zou, Xin ^{[1
]}

Zhong, Chuan ^{[1
]}

Li, Ke ^{[1
]}

Jin, Shangzhong ^{[1
]}

机构：

[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou 310018, Zhejiang, Peoples R China

[2] Hangzhou Inst Calibrat & Testing Qual & Tech Supe, Hangzhou 310018, Zhejiang, Peoples R China

来源：

JOURNAL OF MODERN OPTICS | 2012年 / 59卷 / 14期

关键词：

white LED; CdSe/CdS/ZnS quantum dot; nano-YAG:Ce3+ phosphor; ZNSE;

D O I：

10.1080/09500340.2012.693632

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To improve the poor color rendering index (CRI) of YAG:Ce-based white light-emitting diode (LED) due to the lack of red spectral component, core/shell/shell CdSe/CdS/ZnS quantum dots (QDs) were synthesized and blended into nano-YAG:Ce3+ phosphors. Prominent spectral evolution has been achieved by increasing the content of QDs. A white LED combining a blue LED with the blends of nano-YAG phosphors and orange- and red-emission QDs with a weight ratio of 1:1:1 was obtained. This kind of white LED showed excellent white light with luminescent efficiency, color coordinates, CRI and correlated color temperature (CCT) of 82.5 lm/W, (0.3264, 0.3255), 91 and 4580 K, respectively.

引用

页码：1199 / 1203

页数：5

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