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Proceedings Paper

Green phosphor-converted LED
Author(s): Regina Mueller-Mach; Gerd O. Mueller; Troy A. Trottier; Michael R. Krames; A. Kim; Dan A. Steigerwald
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Paper 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.

Paper Details

Date Published: 26 November 2002
PDF: 6 pages
Proc. SPIE 4776, Solid State Lighting II, (26 November 2002); doi: 10.1117/12.456557
Show Author Affiliations
Regina Mueller-Mach, Lumileds Lighting (United States)
Gerd O. Mueller, Lumileds Lighting (United States)
Troy A. Trottier, Lumileds Lighting (United States)
Michael R. Krames, Lumileds Lighting (United States)
A. Kim, Lumileds Lighting (United States)
Dan A. Steigerwald, Lumileds Lighting (United States)


Published in SPIE Proceedings Vol. 4776:
Solid State Lighting II
Ian T. Ferguson; Nadarajah Narendran; Steven P. DenBaars; Yoon-Soo Park, Editor(s)

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