Advances in Electrical and Electronic Engineering (Jan 2016)

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

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

DOI
https://doi.org/10.15598/aeee.v14i3.1642
Journal volume & issue
Vol. 14, no. 3
pp. 340 – 344

Abstract

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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.

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