| 초록 |
We describe thin films of poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) diblock copolymers (BCPs), spin-coated from mixed solvents that show highly oriented, cylindrical microdomains with a high degree of order on a wide range of substrates, including silicon oxide, polystyrene, germanium, polyimide, and poly(butylene terephthalate). In addition, the preferential solvation of the P4VP block with an alcohol caused a surface reconstruction that resulted in the formation of a nanoporous film upon drying. Solvent reconstruction of the film, followed by a glancing angle metal evaporation and thermal annealing, led to three different decorations of the films with gold. These films were used as masks for pattern transfer of pores, columns and rings to underlying substrate with high fidelity. And also a general route to fabricate highly ordered arrays of nanoscopic inorganic oxide dots and stripes from BCP thin films is described. |
