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

Warm-white light-emitting diodes integrated with colloidal quantum dots for high luminous efficacy and color rendering.
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DOI：
10.1364/ol.35.003372
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发表时间：
2010-10
期刊：
Optics letters
影响因子：
3.6
通讯作者：
S. Nizamoglu;T. Erdem;X. W. Sun;H. Demir
S. Nizamoglu;T. Erdem;X. W. Sun;H. Demir
中科院分区：
物理与天体物理2区
文献类型：
--
作者：
S. Nizamoglu;T. Erdem;X. W. Sun;H. Demir

文献摘要

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具有高光谱质量和效率的暖白光LED（WLED）被要求用于照明应用，但目前的实验性能受到限制。我们报道了一种高性能的NQD杂化WLED，其在低于3000 K的低相关色温下表现出超过350 lm/W（opt）的高光辐射发光效率和接近90的高显色指数。这些光谱工程WLED是使用集成在蓝色InGaN/GaN LED上的CdSe/ZnS核/壳NQD纳米荧光粉的组合获得的。
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 350lm/W(opt) and a high color rendering index close to 90 at a low correlated color temperature <3000K. These spectrally engineered WLEDs are obtained using a combination of CdSe/ZnS core/shell NQD nanophosphors integrated on blue InGaN/GaN LEDs.