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High performance organic light-emitting diodes (OLEDs) were implemented on transparent and conductive single-wall carbon nanotube sheets. At the maximum achieved brightness of 2800cdm−2 the luminance efficiency of our carbon nanotube-based OLED is 1.4cdA−1 which is comparable to the 1.9cdA−1 measured for an optimized indium tin oxide anode device made under the same experimental conditions. A thin parylene buffer layer between the carbon nanotube anode and the hole transport layer is required in order to readily achieve the measured performance.
Aguirre et al. (Fri,) studied this question.