| 초록 |
Defects are recognized in materials science as beings that must be eliminated in order to improve their properties. However, recently, there are some efforts to make the defect structure itself regularly controlled in the liquid crystals. This defect engineering is drawing attention because it can be applied to lithography, polymer actuators, and living matter control. Here, we suggest a method of fabricating new types of chiral self-assembled structures with achiral or chiral liquid crystal using topological defects engineering. Through this method, lyotropic racemic chiral domains and chiral solitonic structures with are periodically controlled. These resultant chiral templates can be transferred to polymer structures that maintains their molecular arrangement by adding a monomer in liquid crystal medium, which is expected to be applied to various applications such as nano actuators, directed particle assembly and micro-lens arrays in the future. |
