Long-range order enhance performance of patterned blue quantum dot light-emitting diodes

作者：Yuyu Jia, Hui Li, Ning Guo, Fucheng Li, Tianchen Li, Haoran Ma, Yuyan Zhao, Hanfei Gao, Dan Wang, Jiangang Feng, Zhiyuan He, Lei Jiang, Yuchen Wu · 发表于：Nature Communications · 年份：2025 · DOI：10.1038/s41467-025-62345-1 · 被引用次数：17 · 研究领域：Quantum Dots Synthesis And Properties、Organic Light-Emitting Diodes Research、Nanocluster Synthesis and Applications

Abstract Quantum dot light-emitting diodes show great potential for next-generation displays. Although film quantum dot light-emitting diodes have achieved or approached efficiency and stability standards for commercial applications, patterned quantum dot light-emitting diodes, particularly blue quantum dot light-emitting diodes, still face challenges in both efficiency and stability. Traditional patterning methods often lead to defects and disorder, causing non-radiative recombination and reduced performance. Here, we develop an aromatic-enhanced capillary bridge confinement strategy to achieve long-range ordered blue quantum dot microstructure arrays. These quantum dot arrays integrate into quantum dot light-emitting diodes achieve a peak external quantum efficiency of 24.1% and a peak luminance of 101,519 cd m −2 . Additionally, the minimum pixel size is reduced to 3 μm, enabling a maximum resolution exceeding 5000 pixels per inch, and static electroluminescence display modes. This study provides a strategy to advance the commercialization of quantum dot light-emitting diodes.