Researchers from The University of Toyama have developed the world's first OLED that uses a non-epitaxial crystalline rubrene thin film as the emitter layer. To create this OLED device, the researchers combined an amorphous underlayer with precise annealing processes, The researchers produced full OLED devices based on this emitter, and discovered that they exhibit a dramatic increase in current density, up to 1000 times higher than that of conv…
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For the first time, researchers have realized a crystalline light layer in a classic thin film OLED. It achieves up to 1,000 times higher current density - but the technology is not yet a finished display.