| 초록 |
Perovskite nanocrystals (PNCs) are a class of nanomaterials with superb color purity and high luminous efficiency. Despite many promising properties, There are still many remaining issues to integrate PNCs in real devices, such as i) enhancing poor stabilities and ii) devising efficient micro-patterning technology for high-resolution display. Herein, we report functional polymer encapsulated PNCs which enable us to demonstrate stable, full-colored, and high-definition patterns. Specifically, polymer ligands contain photo-crosslikable cinnamoyl group on the backbone, and terminal ammonium halide group which can effectively passivate defect sites on the PNC. As a result, PNCs exhibited not only better optical properties but also improved stability. Furthermore, RGB microarrays with high pixels per inch (PPI) value of ~ 465 are successfully fabricated. We believe our patterning technique significantly contribute to the commercialization of PNCs in the field of next-generation display. |
