Abstract
Displays made using colloidal quantum dots as electroluminescent (EL) emitter is a very promising display technology because it is efficient, emits pure color, and is inexpensive. We have demonstrated highly efficient red, green, and blue quantum dot light emitting diodes (QLEDs) using a colloidal zinc oxide nanoparticle electron transport layer. Here, we will report QLEDs with external quantum efficiency >15% for red, green, and blue color (approaching the theoretical‐limit of ~22% for green) QLEDs. Finally, we will discuss some of the challenges that must be addressed to successfully commercialize EL‐QLED displays.
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