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Directed self-assembly of a two-state block copolymer system.

ABSTRACT: In this work, ladder-shaped block copolymer structures consisting of parallel bars, bends, and T-junctions are formed inside square confinement. We define binary states by the two degenerate alignment orientations, and study properties of the two-state system. We control the binary states by creating openings around the confinement, changing the confinement geometry, or placing lithographic guiding patterns inside the confinement. Self-consistent field theory simulations show templating effect from the wall openings and reproduce the experimental results. We demonstrate scaling of a single binary state into a larger binary state array with individual binary state control.

SUBMITTER: Do HW

PROVIDER: S-EPMC6158142 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Directed self-assembly of a two-state block copolymer system.

Do Hyung Wan HW Choi Hong Kyoon HK Gadelrab Karim R KR Chang Jae-Byum JB Alexander-Katz Alfredo A Ross Caroline A CA Berggren Karl K KK

Nano convergence 20180927 1

In this work, ladder-shaped block copolymer structures consisting of parallel bars, bends, and T-junctions are formed inside square confinement. We define binary states by the two degenerate alignment orientations, and study properties of the two-state system. We control the binary states by creating openings around the confinement, changing the confinement geometry, or placing lithographic guiding patterns inside the confinement. Self-consistent field theory simulations show templating effect f ...[more]

PMID: 30467681

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