Orienting thin films of lamellar block copolymer: the combined effect of mobile ions and electric field

• Published in: arXiv.org
• Main Authors: Zheng, B, X -K Man, Ou-Yang, Z C, Schick, M, Andelman, D
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 17.07.2018
• Subjects: Block copolymers; Copolymers; Electric fields; Electric potential; Lamellar structure; Parallel plates; Physics - Chemical Physics; Physics - Materials Science; Physics - Mesoscale and Nanoscale Physics; Physics - Soft Condensed Matter; Physics - Statistical Mechanics; Reduction; Thin films

We study thin films of A/B diblock copolymer in a lamellar phase confined between two parallel plates (electrodes) that impose a constant voltage across the film. The weak-segregation limit is explored via a Ginzburg-Landau-like free-energy expansion. We focus on the relative stability of parallel a...