Multifunctional Photocrosslinkable Polymer Ligands for Enhanced Stability and High-Resolution Patterning of Luminescent Nanocrystals
발표자
방준하 (고려대학교)
연구책임자
방준하 (고려대학교)
공동저자
방준하 (고려대학교)
초록
내용
As the demand for high-resolution displays based on colloidal quantum dots (QDs) and perovskite nanocrystals (PNCs) increases, achieving both long-term stability and precise patternability has become a critical challenge. In this work, we present a versatile strategy to enhance the physicochemical durability and processability of these nanocrystals by employing multifunctional photocrosslinkable polymer ligands. The polymer backbone contains a cinnamoyl group that has been widely employed as a photocrosslinker under 365 nm UV irradiation. Also, the terminal group is readily adjustable between NH3Cl, NH3Br, and NH3I, allowing us to obtain multicolored PNCs via instant anion exchange. Using anion exchanged PNCs, RGB microarrays with a subpixel size of 10 mm × 40 mm were successfully demonstrated. This universal patterning strategy, combining cost-efficiency with superior stability, offers a promising framework for the fabrication of diverse next-generation optoelectronic devices.