In this study, we report a UV-light-curable azide ligand (AzL) for the micro-patterning of PeQDs. AzL can be attached to the surface of the PeQDs during their synthesis without additional ligand exchange. Using the AzL-grafted CsPbBr3 PeQDs, high-color-purity 240 × 240 μm2 square-shaped patterns were successfully fabricated using UV light irradiation, which corresponds to a resolution of >50 pixels per inch.
This research was supported by the Nano\u00b7Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2021M3H4A1A02049634), and NRF grant funded by the Korea government (MSIT) (NRF-2021R1A2C1007304), and was also supported by a grant from the Priority Research Centers Program (2019R1A6A1A11051471) funded by the NRF. This research was also supported by the Creative Materials Discovery Program through the NRF funded by the Ministry of Science and ICT (2019M3D1A106738922) and the Overseas Scholarship Program for Elite Young and Middle-aged Teachers of Lingnan Normal University.
