Dual-color emitting quantum-dot-quantum-well CdSe-ZnS heteronanocrystals hybridized on InGaN/GaN light emitting diodes for high-quality white light generation
Date
2008-03
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Nizamoglu, S.
Mutlugun, E.
Özel, T.
Demir, Hilmi Volkan
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We report white light generation by hybridizing green-red emitting (CdSeZnS/CdSe (core) shell/ shell quantum-dot-quantum-well heteronanocrystals on blue InGaN/GaN light emitting diodes with the photometric properties of tristimulus coordinates (x, y) =(0.36, 0.30), luminous efficacy of optical radiation LE= 278 lm/W, correlated color temperature CCT= 3929 K, and color-rendering index CRI= 75.1. We present the photometric analysis and the quantum mechanical design of these dual-color emitting heteronanocrystals synthesized to achieve high-quality white light when hybridized on light emitting diodes. Using such multicolor emitting heteronanocrystals facilitates simple device implementation while providing good photometric properties
Source Title
Applied Physics Letters
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AIP Publishing LLC
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English