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Colloidal quantum dot light-emitting diodes (QLEDs) are reported with improved external quantum efficiencies (EQE) and efficiency roll-off under high current densities by introducing a thermally-evaporated organic cathode interfacial material (CIM) Phen-NaDPO. QLEDs with this new CIM modified Al cathode were fabricated, giving an upwards of 25% enhancement in the EQE relative to the bare Al device...
Solution-processed copper oxide (CuO) thin films are introduced as a hole injection layer (HIL) for quantum dot-based light-emitting diodes (QD-LEDs). AFM, XPS and UPS measurements are utilized for the characterization of the thermally-annealed CuO films. The optimized CuO-based QD-LEDs exhibited an external quantum efficiency (EQE) of 5.37% with a maximum brightness over 70,000cd/m2. The key parameters...
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