| 초록 |
I will present a solution-based fabrication of hierachical metastructures using colloidal self-assemly and pattering process. Solution-based processes utilizing NC precursors offer the potential low-cost, robust fabrication of highly reproducible films by scalable deposition techniques such as spin-coating, dip-coating, ink-jet printing, and patterning. I will introduce the fabrication of hierachical materials by controlling the structure of highly ordered binary nanocrystal superlattices on multiple length scales. Combinations of magnetic, plasmonic, semiconducting, and insulating colloidal nanocrystal building blocks are self-assembled into BNSL membranes via the liquid-interfacial assembly technique and patterned via transfer printing using PDMS molds. BNSLs with different structural motifs are successfully patterned into various meso- and microsturctures such as lines, circles, and grids. Our technique offer the potential to fabricate multi-functional metamaterials accross large area substrates. |
