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We investigated the control of micro-cavity (MC) effects in organic light-emitting diodes (OLEDs) with the introduction of a striped thin metal layer between the indium tin oxide (ITO) layer and the hole transporting layer (HTL). With an enhanced MC effect obtained through the inserted metal layer, the forward emission of the OLED became stronger and the angular distribution became more forward-directed,...
We investigate the optical characteristics of transparent organic light-emitting diodes (TOLEDs) with thickness variation of the top metal electrode. We find that the thickness variation of the top cathode shows a different influence on the bottom and top side emissions, respectively. The overall efficiency which is the sum of the bottom and top emissions can be enhanced up to 17.7% of external quantum...
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