The ability to make our own light has transformed human society. However, the methods of making light are traditionally dirty and wasteful. LEDs (light emitting diodes) offer us a way to provide light cheaply and efficiently on a global scale, whilst levelling the playing field for poorer communities worldwide. From the bright lights of Times Square to the phone screen in your pocket, find out what lies ahead for these light emitting materials at the forefront of technology.
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Café Scientifique exploring optoelectronic technology