White light-emitting diodes: Stabilizing colour and intensity

White light-emitting diodes (wLEDs) are rapidly replacing incandescent and fluorescent light sources, both in general lighting and display backlights, due to their long lifetime, small footprint, spectral tunability and, most importantly, their high efficiency in converting electrical to optical pow...

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Bibliographic Details
Published in:Nature materials 2017-04, Vol.16 (5), p.500-501
Main Authors: Smet, Philippe F, Joos, Jonas J
Format: Article
Language:English
Subjects:
Color
Light emitting diodes
Light sources
Wavelengths
Online Access:Get full text
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Summary:White light-emitting diodes (wLEDs) are rapidly replacing incandescent and fluorescent light sources, both in general lighting and display backlights, due to their long lifetime, small footprint, spectral tunability and, most importantly, their high efficiency in converting electrical to optical power1,2. As the emission of LEDs is essentially monochromatic, wLEDs are typically composed of a blue pumping LED and one or more luminescent materials, known as phosphors, which convert partof the blue light to longer wavelengths, the mixture yielding white light (Fig.1a,c).
ISSN:1476-1122
1476-4660
DOI:10.1038/nmat4901