Silicon Valley-based SRI International and the Japanese firm SDK have produced an efficient organic light-emitting diode (OLED) light source that could one day replace incandescent and fluorescent light bulbs.
A combination of SDK's light-emitting polymer materials and SRI's cavity organic light-emitting diode (COLED) technology has enabled researchers to achieve an output of 30 lumen per watt for blue light – higher than any other reported polymer OLED device.
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