Hexagonally Perforated Lamella-to-Cylinder Transition in a Diblock Copolymer Thin Film under an Electric Field

Abstract

Using self-consistent-field simulation, a perforated lamella (PL) is investigated under an applied electric field. The perforated lamella is obtained by confining a cylinder-forming diblock copolymer melt in a thin film with a thickness of the spacing between cylinders in the bulk equilibrium state. Upon application of an electric field, the perforated lamella transforms to laying or standing cylinders depending on the direction of the electric field.