Green phosphor-converted LED

Regina Mueller-Mach; Gerd O. Mueller; Troy A. Trottier; Michael R. Krames; A. Kim; Dan A. Steigerwald

doi:10.1117/12.456557

26 November 2002 Green phosphor-converted LED

Regina Mueller-Mach, Gerd O. Mueller, Troy A. Trottier, Michael R. Krames, A. Kim, Dan A. Steigerwald

Proceedings Volume 4776, Solid State Lighting II; (2002) https://doi.org/10.1117/12.456557
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Green phosphor-converted LEDs using a blue pump InGaN diodes have advantages over the direct green InGaN LED with regards to color stability with drive and/or temperature. Added manufacturing steps are outweighed by higher color yield, as a range of pump colors can be used without changing the final chromaticity. The conversion losses can be smaller than the decrease in wall-plug efficiency from blue towards green, which has been reported by many sources. A distinct disadvantage of the concept is due to only one color and phosphor proven - SrGa₂S₄:Eu²⁺ and 535 nm peak wavelength.

Citation Download Citation

Regina Mueller-Mach, Gerd O. Mueller, Troy A. Trottier, Michael R. Krames, A. Kim, and Dan A. Steigerwald "Green phosphor-converted LED", Proc. SPIE 4776, Solid State Lighting II, (26 November 2002); https://doi.org/10.1117/12.456557

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