| 초록 |
The bottom up approach using self-assembly of block copolymers (BCP) have been considered as a powerful technique in nanolithograph. For practical applications, the perpendicular orientation of microdomains to the substrate is a prerequisite. However in most cases, one of domains has a preferential interaction with the substrate and induces parallel orientation. To overcome the interaction and to obtain vertically orientated BCP microdomains, diverse approaches have been developed. Previously, we synthesized thermally stable gold NPs using UV cross-linkable BCP and also precisely tuned the surface property of NPs which are selective and neutral to PS and PMMA by adjusting the composition of polymeric ligand. Moreover, we demonstrated the effect of selective and neutral gold NPs on the orientation of lamellar forming PS-PMMA thin films. Herein, we further investigated the effect of selective and neutral gold NPs on the orientation of thin films of cylindrical BCP. |
