The 26th International Display Workshops (IDW '19)

Presentation information

Print

Oral Presentation

[MEET2] EL Quantum Dots Technologies

Special Topics of Interest on Quantum Dot Technologies

Thu. Nov 28, 2019 5:20 PM - 6:40 PM Conference Hall (1F)

Chair: Frank Yan (Fuzhou University)
Co-Chair: Jang Hyuk Kwon (Kyung Hee University)

6:00 PM - 6:20 PM

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

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

Keywords: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.