Thursday, May 2025

05:00 PM - 08:00 PM

Room: 220A

Session: Emissive, Micro-LED, and Quantum-Dot Displays Posters

Efficient Pixelated Blue Quantum-Dot Light-Emitting Diodes via Direct Photo-Patterning

Description:

In this work, we enhanced the efficiency of patterned blue quantum dot light-emitting diodes (QLEDs) by optimizing the ligand stability of the quantum dots. After photosensitive ligand exchange, the quantum dots maintained a high photoluminescence quantum yield (PLQY), ensuring strong emission properties. Following the lithography process, the device's external quantum efficiency (EQE) reached 14.5%. This demonstrates that through effective quantum dot and ligand optimization, high device performance can be achieved, even after complex fabrication steps such as lithography.