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According to Richard Stevenson, a freelance science and technology writer based in Chepstow, Wales, writing for the IOP, researchers in South Korea and the UK say that they have produced the first large-area, full-colour display based on red, green and blue quantum dots. The technology could spur the launch of colour TV screens combining a vast colour range with an incredibly small pixel size. Both attributes stem from the intrinsic properties of the quantum dots, which despite being just a few nanometres in diameter comprise several thousand atoms that form tiny compound-semiconductor crystals. When electrons inside the quantum dots recombine with their positively charged counterparts, known as holes, it can result in the emission of a narrow band of light.
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