Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering

被引：67
|
作者：
Nizamoglu, Sedat [1 ,2 ]
Erdem, Talha [1 ,2 ]
Sun, Xiao Wei [3 ,4 ]
Demir, Hilmi Volkan [1 ,2 ,3 ,4 ]
机构：
[1] Bilkent Univ, Dept Elect & Elect Engn, Dept Phys, TR-06800 Ankara, Turkey
[2] Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, Turkey
[3] Nanyang Technol Univ, Sch Elect & Elect Engn, Microelect Div, Singapore 639798, Singapore
[4] Nanyang Technol Univ, Sch Phys & Math Sci, Phys & Appl Phys Div, Singapore 639798, Singapore
来源：
OPTICS LETTERS | 2010年 / 35卷 / 20期
基金：
新加坡国家研究基金会;
关键词：
NANOCRYSTALS;
D O I：
10.1364/OL.35.003372
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Warm-white LEDs (WLEDs) with high spectral quality and efficiency are required for lighting applications, but current experimental performances are limited. We report on nanocrystal quantum dot (NQD) hybridized WLEDs with high performance that exhibit a high luminous efficacy of optical radiation exceeding 350 lm/W-opt and a high color rendering index close to 90 at a low correlated color temperature <3000 K. These spectrally engineered WLEDs are obtained using a combination of CdSe/ZnS core/shell NQD nanophosphors integrated on blue InGaN/GaN LEDs. (C) 2010 Optical Society of America
引用
收藏
页码：3372 / 3374
页数：3
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