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OLED Layers Using PHOLED
An OLED is a series of organic thin films sandwiched between two thin-film conductive electrodes, all deposited onto a substrate. When electricity is applied, charge carriers (holes and electrons) are injected from the anode and cathode into the PHOLED layer and recombine to form excitons, which cause photons to emit. (Image courtesy of Universal Display Corporation, www.universaldisplay.com)
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