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Longer lives for organic LEDs The performance of organic light-emitting diodes can be improved by doping them with carbon-60 according to scientists at Samsung in South Korea. The carbon-60 molecules can also extend the lifetime of the devices by a factor of two (J Y Lee and J H Kwon 2005 Appl. Phys. Lett. 86 063514). Organic light-emitting diodes (LEDs) are potentially attractive for applications because they are easy to process and can emit over the full visible spectrum.
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