A GaN LED, coated with a “factory-roof” pattern modeled off the fireflies’ scales. The bio-inspired LED coating increased light extraction by more than 50 percent. (Credit: Nicolas Andr)

Scientists Mimic Fireflies to Make Brighter LEDs: New Bio-Inspired Coating That Increases LED Efficiency by 55 Percent

Jan. 8, 2013 — The nighttime twinkling of fireflies has inspired scientists to modify a light-emitting diode (LED) so it is more than one and a half times as efficient as the original.

Researchers from Belgium, France, and Canada studied the internal structure of firefly lanterns, the organs on the bioluminescent insects’ abdomens that flash to attract mates. The scientists identified an unexpected pattern of jagged scales that enhanced the lanterns’ glow, and applied that knowledge to LED design to create an LED overlayer that mimicked the natural structure. The overlayer, which increased LED light extraction by up to 55 percent, could be easily tailored to existing diode designs to help humans light up the night while using less energy.

Read more: Scientists mimic fireflies to make brighter LEDs: New bio-inspired coating that increases LED efficiency by 55 percent — Science Daily.

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