| 초록 |
Soft building blocks such as block copolymers, colloids, and supramolecules have considerable attention to form highly ordered and dense nanopatterns. These nanostructures based on soft materials can be tuned by molecular shapes, structures and interactions. Among soft building blocks, self-assembly of dendrimers shows small feature size (2 - 10 nm), ultra-dense structures, and fast self-assembly. Herein, we report directed self-assembly of dendrimers for long range ordering. High resolution (~ 20 nm) and high aspect ratio (> 10) line patterns control alignment direction of dendrimer columns. Ordering behavior of dendrimer columns is controllable by the dimension of guiding patterns and dendrimer film thickness. Dendrimer columns which are perpendicular to the line pattern direction and parallel along the line pattern direction are generated. These approaches show possibilities of lithographic applications, which are based on directed self-assembly of dendrimer. |
