Abstract
We report on the possibility to enhance color rendering of commercially available remote phosphor light-emitting diode modules by using low-cadmium content ZnCdSeS alloyed quantum dots. The employed numerical simulations showed that the color-rendering index of at the color-correlated temperature of 3200 K can be achieved by application of a single layer of quantum dots onto a neutral-white remote phosphor substrate. The experimental results fully support the numerical calculations, thus revealing the only limiting factor in achieving a higher photometric performance: the self-absorption effect in quantum dots. The presented low-cadmium content quantum dots allow a price-effective upgrade of already existing remote phosphor solid-state lighting technology toward a higher color-rendering capability.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Ping Zhong, Guoxing He, and Minhao Zhang
Opt. Express 20(8) 9122-9134 (2012)
Jana Ryckaert, António Correia, Mickael D. Tessier, Dorian Dupont, Zeger Hens, Peter Hanselaer, and Youri Meuret
Opt. Express 25(24) A1009-A1022 (2017)
Bin Xie, Wei Chen, Junjie Hao, Dan Wu, Xingjian Yu, Yanhua Chen, Run Hu, Kai Wang, and Xiaobing Luo
Opt. Express 24(26) A1560-A1570 (2016)