Abstract
Block copolymers spontaneously self-assemble into well-defined nanoscale morphologies. Yet equilibrium assembly gives rise to a limited set of structures. Non-equilibrium strategies can, in principle, expand diversity by exploiting self-assembly’s responsive nature. In this vein, we developed a pathway priming strategy combining control of thin film initial configurations and ordering history. We demonstrate a library of exotic non-native morphologies, including vertically-oriented perforated lamellae, aqueduct structures, parapets, and networks of crisscrossing lamellae.
Type
Publication
Nature Communications
