Chemical engineers create the greenest green for LED displays

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In order to produce the next generation of ultra-high resolution TV and smartphone displays, it is first necessary to create light emitting diodes that give off ultra-pure red, blue and green colors. This has already been achieved for red and blue, but because the eye is able to distinguish a greater number of green hues than red or blue ones, producing and ultra-green LED has proven impossible. Until now. A chemical engineering team at ETH Zurich University, led by Professor Chih-Jen Shih has succeeded in generating an ultra-pure green light for the first time. Colors are created through a mixture…

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