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Proceedings Article

Green phosphor-converted LED

[+] Author Affiliations
Regina Mueller-Mach, Gerd O. Mueller, Troy A. Trottier, Michael R. Krames, A. Kim, Dan A. Steigerwald

Lumileds Lighting (United States)

Proc. SPIE 4776, Solid State Lighting II, 131 (November 26, 2002); doi:10.1117/12.456557
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From Conference Volume 4776

  • Solid State Lighting II
  • Ian T. Ferguson; Nadarajah Narendran; Steven P. DenBaars; Yoon-Soo Park
  • Seattle, WA | July 07, 2002

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.

© (2002) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Regina Mueller-Mach ; Gerd O. Mueller ; Troy A. Trottier ; Michael R. Krames ; A. Kim, et al.
"Green phosphor-converted LED", Proc. SPIE 4776, Solid State Lighting II, 131 (November 26, 2002); doi:10.1117/12.456557; http://dx.doi.org/10.1117/12.456557


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