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Keywords:

  • Block copolymers;
  • Hierarchical structures;
  • Micropatterning;
  • Nanopatterning;
  • Self-organization
Thumbnail image of graphical abstract

Hierarchical self-assembly of block copolymers has been achieved by two steps of sequential ordering processes, consisting of self-organized micropatterning from a dewetting block polymer solution and thermal annealing. The self-organized micropattern induces the spontaneous alignment of self-assembled lamellae (see figure), which is successfully applied for a lithography-free, ultra-large-scale nanopatterning.