Issue Date: April 17, 2006
White organic LEDs advance
If organic light-emitting diodes that glow white (so-called WOLEDs) can be made sufficiently robust, energy-efficient, and economical to manufacture, they may one day supplant incandescent bulbs and other lighting technologies. The latest advance on this long road is a new WOLED architecture that uses a fluorescent blue-emitting dopant in combination with phosphorescent green and red dopants to convert electricity into white light (Nature 2006, 440, 908). Previous WOLEDs used phosphorescent blue, green, and red dopants, . . .
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