Improvement of Cd-Free Quantum Dot Electroluminescent Characteristics by Inorganic Ion Treatment

Keisuke Kitano

doi:https://doi.org/10.36463/idw.2023.0528

09:40 〜 10:00

[PH3/OLED5-3 (Invited)] Improvement of Cd-Free Quantum Dot Electroluminescent Characteristics by Inorganic Ion Treatment

*Keisuke Kitano¹, Seung Hyuk Lee², Takahiro Doe¹, Yasushi Asaoka¹, Noboru Iwata¹, Makoto Izumi¹, Tetsu Tatsuma², Yasuhiko Arakawa² (1. Sharp Corporation (Japan), 2. The University of Tokyo (Japan))

Cd-free QDs, QD-EL, inorganic ion treatment, photoelectrochemical measurement

https://doi.org/10.36463/idw.2023.0528

Inorganic ion treatment for Cd-free colloidal quantum dot (QD) layers improved their carrier injection efficiency and electric stability, resulting in improvement of external quantum efficiency (EQE) and electroluminescence (EL) lifetime of the QD-electroluminescent devices (QD-EL).

Proceedings of the International Display Workshops Volume 30 (IDW '23)

[PH3/OLED5-3 (Invited)] Improvement of Cd-Free Quantum Dot Electroluminescent Characteristics by Inorganic Ion Treatment