Jia Yuyu, Li Hui, Guo Ning, Li Fengmian, Li Tianchen, Ma Haoran, Zhao Yuyan, Gao Hanfei, Wang Dan, Feng Jiangang, He Zhiyuan, Jiang Lei, Wu Yuchen
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, PR China.
Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, PR China.
Nat Commun. 2025 Aug 16;16(1):7643. doi: 10.1038/s41467-025-62345-1.
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. 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.
量子点发光二极管在下一代显示器方面展现出巨大潜力。尽管薄膜量子点发光二极管已达到或接近商业应用的效率和稳定性标准，但图案化量子点发光二极管，尤其是蓝色量子点发光二极管，在效率和稳定性方面仍面临挑战。传统的图案化方法常常导致缺陷和无序，引起非辐射复合并降低性能。在此，我们开发了一种芳香增强毛细桥限域策略，以实现长程有序的蓝色量子点微结构阵列。这些集成到量子点发光二极管中的量子点阵列实现了24.1%的峰值外量子效率和101519 cd m的峰值亮度。此外，最小像素尺寸减小到3μm，实现了超过每英寸5000像素的最大分辨率以及静态电致发光显示模式。本研究为推动量子点发光二极管的商业化提供了一种策略。
