Microporous Honeycomb-Structured Films of Semiconducting Block Copolymers and Their Use as Patterned Templates

Two-dimensional honeycomb-structured films have been prepared using a new light-emitting rod–coil block copolymer. Carbon disulfide was used to drop-cast the films, during the cooling of which water droplets condensed on the still-liquid surface and organized themselves in a highly regular fashion. The resulting porous films were then used as templates for a two-dimensional array of aluminum microdots (see Figure).