Erdem Talha, Nizamoglu Sedat, Sun Xiao Wei, Demir Hilmi Volkan
Department of Electrical and Electronics Engineering, Department of Physics, Nanotechnology Research Center, Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey.
Opt Express. 2010 Jan 4;18(1):340-7. doi: 10.1364/OE.18.000340.
We report a photometric study of ultra-efficient light emitting diodes (LEDs) that exhibit superior color rendering index (CRI) and luminous efficacy of optical radiation (LER) using semiconductor quantum dot nanocrystal (NC) luminophores. Over 200 million systematically varied NC-LED designs have been simulated to understand feasible performance in terms of CRI vs. LER. We evaluated the effects of design parameters including peak emission wavelength, full-width-at-half-maximum, and relative amplitudes of each NC color component on LED performance. Warm-white LEDs with CRI >90 and LER >380 lm/W at a correlated color temperature of 3000 K are shown to be achieved using nanocrystal luminophores.
我们报道了一项关于超高效发光二极管（LED）的光度学研究，这些LED使用半导体量子点纳米晶体（NC）发光体，具有卓越的显色指数（CRI）和光辐射发光效率（LER）。我们模拟了超过2亿种系统变化的NC-LED设计，以了解CRI与LER方面的可行性能。我们评估了包括峰值发射波长、半高宽以及每个NC颜色分量的相对幅度等设计参数对LED性能的影响。结果表明，使用纳米晶体发光体可实现相关色温为3000 K时CRI>90且LER>380 lm/W的暖白色LED。
