—Firefly-inspired LED shines brighter “Future displays that glow like fireflies could use less energy” An organic light-emitting diode that mimics the three-layered structure of a firefly’s lantern shines brighter than conventional OLEDs, a development that could lead to TV and computer screens that use less energy (Nano Lett. 2016, DOI: 10.1021/acs.nanolett.5b05183). The lantern of the firefly species Pyrocoelia rufa is covered in chitin structures 10 µm wide that lie like roofing tiles, with nanoscale ridges decorating their surfaces. These structures better match the index of refraction of air than plain chitin, and they reduce internal reflection, which improves light transmission out of the lantern.
by Katherine Bourzac, Special to C&EN |
April 25, 2016