[MEET2] EL Quantum Dots Technologies

[MEET2-3(Invited)] Ultra-Bright Quantum-Dot Light-Emitting Diodes

*Shuming Chen¹ (1. Southern University of Science and Technology (China))

キーワード：quantum dot, light-emitting diodes, device structures, ultra-bright, thermal management

Thermal stability of quantum dots (QDs) and thermal management of QD light-emitting diodes (QLEDs) could significantly affect the performance, especially the efficiency roll-off behaviors of QLEDs. With effective thermal management, the efficiency roll-off is significantly suppressed and consequently our developed green QLEDs exhibit an unprecedented high brightness of over 10⁶ cd/m² at a current density of J=3500 mA/cm² and a external quantum efficiency of ~10%, which is an order of magnitude higher than that of all reported QLEDs.