International Display Workshops General Incorporated Association

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Proceedings of the International Display Workshops Volume 27 (IDW '20)

Dec 9, 2020 - Dec 11, 2020
Virtual Conference

1:20 PM - 1:40 PM

[OLED2-2] Green Electroluminescence Generated by Band-edge Transition in Ag–In–Ga–S/GaSx Core/shell Quantum Dots

*Genichi Motomura1, Yukiko Iwasaki1, Tatsuya Kameyama2, Tsukasa Torimoto2, Taro Uematsu3, Susumu Kuwabata3, Toshimitsu Tsuzuki1 (1. Japan Broadcasting Cooporation (NHK)(Japan), 2. Nagoya University(Japan), 3. Osaka University(Japan))

quantum dot, electroluminescence, light-emitting diode, band-edge emission

https://doi.org/10.36463/idw.2020.0377

Quantum dot (QD) light-emitting diodes (LEDs) that exhibit vivid green emission were fabricated using Ag−In−Ga−S/GaSx core/shell QDs. For these QD-LEDs, the broad defect emission in electroluminescence was larger than that in photoluminescence. The addition of an electron transporting material to the emitting layer effectively suppressed the defect emission.