暖白色发光二极管与胶体量子点集成，实现高光效和高显色性。

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

机构信息

Department of Electrical and Electronics Engineering, UNAM–Instituteof Materials Science and Nanotechnology, Bilkent University, Ankara, Turkey 06800.

出版信息

Opt Lett. 2010 Oct 15;35(20):3372-4. doi: 10.1364/OL.35.003372.

DOI:10.1364/OL.35.003372

PMID:20967070

Abstract

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.

摘要

需要具有高光效和高质量光谱的暖白光 LED（WLED）用于照明应用，但目前的实验性能有限。我们报告了高性能的纳米晶量子点（NQD）混合 WLED，其光辐射的光效超过 350lm/W（opt），显色指数高，接近 90，相关色温低<3000K。这些光谱工程化的 WLED 是使用集成在蓝色 InGaN/GaN LED 上的 CdSe/ZnS 核/壳 NQD 纳米荧光粉组合获得的。