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Quantum Dots Warm Up LED Lighting

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Hank Hogan, Contributing Editor, [email protected]

Quantum dots could solve the major problems that are blocking LEDs from broader adoption – but issues related to color, lifetime, cost and mass production must be solved. Quantum dots and LEDs are from the same family tree, in a sense. They’re both based on semiconductor technology: Quantum dots are nanometer-scale compound semiconductor constructs, and LEDs are semiconductor-based devices. And the former technology could be just the key to help its cousin take command of the lighting and display markets. Quantum-dot LEDs, or QLEDs, are starting to attract attention...Read full article

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    Published: October 2011
    Glossary
    quantum dots
    A quantum dot is a nanoscale semiconductor structure, typically composed of materials like cadmium selenide or indium arsenide, that exhibits unique quantum mechanical properties. These properties arise from the confinement of electrons within the dot, leading to discrete energy levels, or "quantization" of energy, similar to the behavior of individual atoms or molecules. Quantum dots have a size on the order of a few nanometers and can emit or absorb photons (light) with precise wavelengths,...
    AmericasBasic ScienceConsumerDisplaySearchEran RabiniEric VireyEvident TechnologiesFeaturesHank HoganindustrialKatherine AidalaLG DisplayLight SourceslightingMassachusetts Institute of TechnologyMicroscopyMITMt. Holyoke CollegeNanosysNexxus LightingPaul SemenzaQD VisionQLEDquantum dot LEDquantum dotsSamsungSEMISeth Coe-SullivanSolvayTel Aviv UniversityTom MorrowYole DevelopmentLEDs

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