The 26th International Display Workshops (IDW '19)

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Oral Presentation

[MEET3] Emerging Quantum Dots and Nanotechnologies (1)

Special Topics of Interest on Quantum Dot Technologies

Fri. Nov 29, 2019 9:00 AM - 10:20 AM Conference Hall (1F)

Chair: Christophe Martinez (CEA LETI)
Co-Chair: Haizheng Zhong (Beijing Institute of Technology)

10:00 AM - 10:20 AM

[MEET3-4(Invited)] High Efficiency Cadmium-free Red Quantum Dot-Light Emitting Diodes

*Jang Hyuk Kwon1 (1. Kyung Hee University (Korea))

Keywords:Cadmium-free QDs, Inverted QD-LED, aging, high efficiency

We report a high efficiency inverted red indium phosphide (InP) based quantum dot-light emitting diode (QD-LED) by optimizing InP-QD properties as well as interfacial contact between electron transport layer and emissive QDs, and applying self-aging approach. Our QD-LED exhibits substantial improvement in the external quantum efficiency from 4.42 to 10.2% after several days of self-aging.