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Chemistry · L5 · QLED Display: Size-Tuning One Material to Red, Green, and Blue

How a QLED television display uses quantum dots of a single core semiconductor material, synthesized at three different sizes, to produce the red, green, and blue sub-pixels of its color palette.

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One core semiconductor material(e.g. CdSe or InP nanocrystal)Synthesize nanocrystalsat a controlled, chosen sizeBlue-emitting quantum dotGreen-emitting quantum dotRed-emitting quantum dotBlue sub-pixelGreen sub-pixelRed sub-pixelQLED display:full color from one materialSmallest size (strongest confinement)Medium size (moderate confinement)Largest size (weakest confinement)

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