Which semiconductor material was used to create the first highly efficient blue light-emitting diode (LED)?
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Shuji Nakamura, Isamu Akasaki, and Hiroshi Amano won the 2014 Nobel Prize in Physics for developing gallium nitride crystals. This breakthrough allowed the creation of bright blue LEDs, which could finally be combined with red and green to produce white light. Photo: PiccoloNamek, Wikimedia Commons, CC BY-SA 3.0.
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Source: Wikipedia (CC BY-SA)
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