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Organic LED Features Quantum Dots

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Daniel S. Burgess

A quantum-dot sandwich on the menu at Massachusetts Institute of Technology in Cambridge promises to boost the performance of organic LEDs. The device, which features a layer of CdSe nanocrystals squeezed between two organic thin films, displays a luminescence efficiency 25 times higher than other quantum-dot LEDs and a much narrower emission spectrum than standard organic devices. Organic LEDs are quickly making inroads into consumer applications where liquid crystal had dominated, particularly as flat panel displays for handheld devices such as cellular phones and personal data...Read full article

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    Published: February 2003
    Glossary
    emission spectrum
    An emission spectrum is a graphical representation or a characteristic pattern of the wavelengths or frequencies of light emitted by a source, such as an atom, molecule, or celestial object. It shows the distribution of emitted light across the electromagnetic spectrum. This spectrum is unique to the emitting substance and is often used in analytical chemistry, astrophysics, and other scientific fields for identifying elements or compounds based on their distinctive spectral lines. Key points...
    Consumeremission spectrumluminescence efficiencyorganic LEDquantum-dotResearch & TechnologyTech Pulse

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