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郑州大学 物理学院, 河南 郑州 450051
Received:10 September 2025,
Revised:2025-10-14,
Published:05 January 2026
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XU Yuzhu, LIU Hongbin, LI Qing, et al. Application of photocrosslinking technology in perovskite quantum dot displays[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(1): 150-162.
XU Yuzhu, LIU Hongbin, LI Qing, et al. Application of photocrosslinking technology in perovskite quantum dot displays[J]. Chinese Journal of Liquid Crystals and Displays, 2026, 41(1): 150-162. DOI: 10.37188/CJLCD.2025-0184. CSTR: 32172.14.CJLCD.2025-0184.
金属卤化物钙钛矿量子点(QDs)具有优异的光电性质,包括高荧光效率、高色纯度、光谱连续可调以及溶液加工特性等,在下一代超高清、柔性显示等领域具有重要的应用前景。经过近10年的快速发展,钙钛矿QDs发光二极管(QLED)的器件性能取得显著的提升,红/绿/蓝光器件的外量子效率(EQE)均已经超过20%。目前,钙钛矿QDs在显示应用中面临的核心问题是材料稳定性差以及如何在实现QLED高分辨率像素的同时保持器件的高发光效率。光交联技术是以特定波长光源(紫外光为主)触发含光敏基团的分子发生交联反应,形成三维网络结构,进而调控材料性质的技术,其有望解决钙钛矿QDs的稳定性问题,同时能够实现QDs的高分辨率图案。本文系统总结了近年来钙钛矿QDs中光交联技术的研究进展,重点阐述其在提升钙钛矿材料稳定性,实现高分辨率像素图案化,以及钙钛矿QLED制备与性能优化等方面的应用。
Metal halide perovskite quantum dots(QDs) exhibit outstanding optoelectronic properties, including high photoluminescence quantum yields(PLQYs), high color purity, widely tunable bandgap, and solution-processability. They hold significant application potential in next-generation high-definition and flexible displays. After nearly a decade of rapid development, the device performance of perovskite QD light-emitting diodes(QLEDs) has significantly improved, with external quantum efficiencies (EQEs) exceeding 20% for red, green, and blue devices. Currently, the main challenges for perovskite QDs in display applications are poor material stability and the fabrication of high-resolution pixels. Photocrosslinking technology—which uses specific wavelength light sources (primarily UV) to trigger crosslinking reactions in molecules containing photosensitive groups, forming three-dimensional network structures to regulate material properties—holds promise for addressing perovskite QD stability issues while enabling high-resolution patterning of QDs. This paper systematically reviews recent research advances in photocrosslinking technology within perovskite systems, focusing on design strategies for enhancing the environmental stability of perovskite materials, achieving sub-micron pixel patterning, and optimizing the performance of patterned perovskite QLEDs.
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