Scientists turn to fireflies to improve OLED efficiency

center_img More information: Jae-Jun Kim, et al. “Biologically Inspired Organic Light-Emitting Diodes.” Nano Letters. DOI: 10.1021/acs.nanolett.5b05183 Journal information: Nano Letters (Phys.org)—Many insects, birds, fish, and amphibians emit light as a way to communicate with each other, but the species that produces light most efficiently is the firefly. In a new study, researchers have investigated the optical properties of the firefly’s light-emitting cuticle, which is not smooth like most human-made lights, but instead is patterned with tiny hierarchical structures. Inspired by these features, the researchers replicated the patterns to create a bioinspired organic light-emitting diode (OLED), resulting in a 60% increase in the light extraction efficiency and 15% wider angle of illumination. Fireflies give Korean team bright idea for LED lightinglast_img

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