Kim Taehyung, Gwak Namyoung, Oh Nuri, Kim Tae Ann
Electronic and Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea.
Division of Materials Science and Engineering, Hanyang University, Seoul, Republic of Korea.
Macromol Rapid Commun. 2025 Sep;46(18):e00372. doi: 10.1002/marc.202500372. Epub 2025 Jun 29.
The development of high-resolution displays has driven the exploration of quantum dot (QD)-based patterning techniques, ranging from inkjet printing to direct photolithography. Among these methods, direct photolithography stands out as a promising technique for creating high-resolution QD patterns without the need for a photoresist layer. This approach relies on photochemical reactions that induce solubility changes in target materials when exposed to specific wavelengths of light. While various patterning strategies have been reported, polymerization-induced network formation offers a straightforward yet effective approach for fabricating QD patterns, simultaneously inheriting the advantageous physical and chemical properties of polymers. This review categorizes and discusses the photochemical reactions that enable polymerization according to their underlying mechanisms. Recent examples utilizing these reactions for direct photolithography of QDs are classified and summarized based on reactive functional groups-alkene, alkane, alkyne, and disulfide-involved in the polymerization process. Finally, we propose future directions for advancing this technology, including improvements in material compatibility, device integration, and the introduction of new functionalities, which could further expand the potential applications of QD-based optoelectronic devices.
高分辨率显示器的发展推动了对基于量子点（QD）的图案化技术的探索，从喷墨打印到直接光刻。在这些方法中，直接光刻作为一种有前景的技术脱颖而出，可用于创建高分辨率的量子点图案，而无需光刻胶层。这种方法依赖于光化学反应，当暴露于特定波长的光时，会引起目标材料的溶解度变化。虽然已经报道了各种图案化策略，但聚合诱导网络形成提供了一种直接而有效的制造量子点图案的方法，同时继承了聚合物有利的物理和化学性质。本综述根据其潜在机制对能够引发聚合的光化学反应进行分类和讨论。利用这些反应进行量子点直接光刻的最新实例根据聚合过程中涉及的反应性官能团——烯烃、烷烃、炔烃和二硫化物——进行分类和总结。最后，我们提出了推进该技术的未来方向，包括材料兼容性、器件集成方面的改进以及新功能的引入，这可能会进一步扩大基于量子点的光电器件的潜在应用。
