High-power phosphor-converted light-emitting diodes based on III-Nitrides

Phosphor conversion of light-emitting diode light for white light sources and some monochrome applications requires particular phosphor properties and has to take into account specific issues if aimed at high-power output. Limitations and solutions will be discussed, giving special considerations to...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2002-03, Vol.8 (2), p.339-345
Main Authors: Mueller-Mach, R., Mueller, G.O., Krames, M.R., Trottier, T.
Format: Article
Language:English
Subjects:
Brightness
Color
Conversion
Drives
Legged locomotion
Light emitting diodes
Light sources
Luminescence
Phosphors
Quantum electronics
Rendering
Solid state lighting
Temperature dependence
Wavelength conversion
White light
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Summary:Phosphor conversion of light-emitting diode light for white light sources and some monochrome applications requires particular phosphor properties and has to take into account specific issues if aimed at high-power output. Limitations and solutions will be discussed, giving special considerations to drive and temperature dependencies. Efficiencies of 32 lm/W for white with good color rendering at 4600 K and 35 lm/W for green (535 nm) have been demonstrated.
ISSN:1077-260X
1558-4542
DOI:10.1109/2944.999189