학술논문
Y2O3:Eu3+phosphor: a novel solution for an increase in color rendering index of multi-chip white LED packages
Document Type
Article
Author
Source
Journal of the Chinese Institute of Engineers; April 2017, Vol. 40 Issue: 3 p228-234, 7p
Subject
Language
ISSN
02533839; 21587299
Abstract
AbstractIn this study, a novel compound is synthesized by adding the red-emitting Y2O3:Eu3+dopant to conformal phosphor package (CPP) or in-cup phosphor package (IPP), to be employed as a component in multi-chip white LEDs lamps (W-LEDs). It was found that this solution can enhance the color rendering index (CRI) of W-LEDs that have correlated color temperatures of 5600 K through 8500 K to more than 86. Besides, the impacts of the Y2O3:Eu3+phosphor on the attenuation of light through the phosphor layers, CPP and IPP, are also demonstrated based on the Beer–Lambert law and Mie theory. These results provide important information for producing W-LEDs with higher CRI.