White light generation with CdSe/ZnS core-shell nanocrystals and InGaN/GaN light emitting diodes
Demir, Hilmi Volkan
2006 Conference on Optoelectronic and Microelectronic Materials and Devices
21 - 23
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We present hybrid white light sources that integrate CdSe/ZnS core-shell nanocrystals on blue InGaN/GaN light emitting diodes (LED). We report on the demonstrations of white light generation using yellow nanocrystals (λPL=580 nm) hybridized on a blue LED (λEL= 440 nm) with tristimulus coordinates of x=0.37 and y=0.25, correlated color temperature of Tc=2692 K, and color rendering index of R a=14.6; cyan and red nanocrystals (λPL=500 nm and 620 nm) on a blue LED (λEL=440 nm) with x=0.37, y=0.28, T c=3246 K, and Ra=19.6; and green, yellow, and red nanocrystals (λPL=540 nm, 580 nm, and 620 nm) on a blue LED (λEL=452 nm) with x=0.30, y=0.28, Tc =7521 K, and Ra=40.9. © 2006 IEEE.
Light emitting diodes
Light emitting diodes (LED)
White light sources
Published Version (Please cite this version)http://dx.doi.org/10.1109/COMMAD.2006.4429868
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