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Keywords:

  • block copolymers;
  • nanopatterning;
  • self-alignment
Thumbnail image of graphical abstract

Self-alignment of lamellar nanodomains is accomplished by imposing thickness modulation to a block copolymer thin film. Real-time atomic-force microscopy imaging reveals that the self-alignment occurs through the directional growth of well-aligned domains along thickness gradients. This novel self-aligning principle, based on a “geometric anchoring” phenomenon, is reported by S. O. Kim, O. D. Lavrentovich and co-workers on page 2584.