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A simplified hybrid white organic light-emitting diode (WOLED) employing a p-type interlayer is designed, simultaneously realizing high efficiency, high color rendering index (CRI), low efficiency roll-off, low voltage and stable color. The device exhibits maximum total efficiencies of 29.8cd/A and 20.9lm/W, which slightly decrease to 28.6cd/A and 16.5lm/W even at a high luminance of 5000cd/m ...
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