초록 |
Diverse functional nanoparticles have been employed in various fields such as sensors, displays, solar cells, and batteries. The encapsulation process can offer merits for industrial applications because the properties of nanoparticles are often vulnerable to external environments (e.g., air, moisture, solvent, heat, etc.). We develope the simple fabrication method of microparticles using the piezo-driven inkjet nozzle, in which microdroplets of a polymer solution are periodically generated through the nozzle. Rapid solvent evaporation while the microdroplets fall in the air leads to the formation of kinematically stable polymer particles. In this way, various functional nanoparticles (i.e., thermochromic pigment, quantum dot, and perovskite) are faciely encapsulated in various polymer matrices, and their physical/chemical properities encapsulated in polymer are maintained stably against the external environement. |