| 초록 |
The self-assembly of block copolymers can provide a versatile template for the fabrication of nanostructured materials with potential applications ranging from filters with well-defined pore size for separation to floating gates in flash memory storage devices. In the most cases, the block copolymers are applied in a form of thin film, where 2D confinement and surface/substrate interactions are key factors that affect ordering behavior. External fields should be required to control the orientational and positional orders, and among them, solvent annealing method has recently attracted much attention due to its ease and conspicuous success. Another advantage of block copolymers lies in physical/chemical contrast between components that can be utilized to generate functional hybrid materials by specific interactions. To characterize the ordering process and resultant structure in thin films, GISAXS/GIWAXD methods were conducted and their results together with AFM and TEM are presented. |
