| 초록 |
Directed self-assembly of soft condensed matter such as block copolymers, supramolecules, surfactants, colloids, and liquid crystals (LCs) have been massively studied to get very periodic and defect free structures for the potential application of micro-fabrication. In this presentation, the new types of LC defects array are introduced for the first time. The ordered LC defects array can be obtained using several methods such as surface treatment, micro-size confined system, external field and thermal annealing. The origin and the behavior of LC defect structures are described based on liquid crystal physics. The present findings at here pose new theoretical challenges and potentially open the way for lithographic applications based on smectic liquid crystalline materials. As a potential application, the LC defect arrays were used for various lithographic templates, photolithographic mask, microlens array and superyhydrophobic surfaces. |
