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Efficient Perovskite Light-Emitting Diodes based on Double Organic Cations

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Abstract

We report a FA and MA mixed hybrid perovskite quantum dot light emitting diodes using a simple synthesis method at room temperature. The green light-emitting diodes used FAxMA1−xPbBr3 quantum dots as emitting layer, which exhibited maximum luminence of 6000 cd/A, current efficiency of 6 cd/A and external quantum efficiency of 3.5%, which is more efficient than the pure FAPbBr3 PeLED. This provides an alternative route toward high efficient solution-processed perovskite-based light-emitting diodes.

© 2017 Optical Society of America

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