Tran Hoang Quang Minh, Nguyen Huu Khanh Nhan, Thoai Phu Vo, Nguyen Doan Quoc Anh

Enhancement of Color Rendering Index for White Light LED Lamps by Red Y2O3:EU3 Phosphor

Číslo: 3/2016
Periodikum: Advances in Electrical and Electronic Engineering
DOI: 10.15598/aeee.v14i3.1642

Klíčová slova: Y2O3:Eu3+ phosphor; Beer-Lambert law; color rendering index; pc-WLEDs, index vykreslení barev.

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Anotace: We present an application of the red Y2O3:Eu3+ dopant phosphor compound for reaching the color rendering index as high as 86. The Multi-Chip White LED lamps (MCW-LEDs) with high Correlated Color Temperatures (CCTs) including 7000 K and 8500 K are employed in this study. Besides, the impacts of the Y2O3:Eu3+ phosphor on the attenuation of light through phosphor layers of the various packages is also demonstrated based on the Beer-Lambert law. Simulation results provide important conclusion for selecting and developing the phosphor materials in MCW-LEDs manufacturing.