International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 29 (IDW '22)

Proceedings of the International Display Workshops Volume 29 (IDW '22)

2022年12月14日 〜 2022年12月16日
Fukuoka International Congress Center

10:00 〜 10:20

[PH1/OLED3-4L] Development of Cd-free QD-LEDs for Display Applications and Improvement of Luminous Efficiency

*Noboru Iwata1、Takahiro Doe1、Keisuke Kitano1、Yoshihiro Ueta1、Takahiro Adachi1、Makoto Izumi1、Tetsu Tatsuma2、Yasuhiko Arakawa2 (1.Sharp Corporation (Japan)、2.The University of Tokyo (Japan))

Quantum dots, Cd-free, QD-LEDs, Electro-luminescence, Display

https://doi.org/10.36463/idw.2022.0397

We discuss development of QD-LEDs using Cd-free quantum dots. We have achieved patterning in a size practical for high-resolution displays, estimating the expected EQE derived from the optical evaluation of QDs and the equivalent circuit model of QD-LEDs, and directly measuring the carrier injection efficiency based on photoelectrochemical measurement.