An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Block-copolymer healing of simple defects in a chemoepitaxial template
Published
Author(s)
Paul N. Patrone, Gregg M. Gallatin
Abstract
Using a phase-field model of block copolymers (BCPs), we characterize how a chemoepitaxial template with parallel lines of arbitrary width affects the BCP microdomain shape. The model, which is an extension of the Leibler-Ohta-Kawasaki theory, accounts for the polymer-substrate and polymer-air interactions. We derive formulas for the monomer density and the microdomain interface profile of periodic, lamellar BCP melts whose template lines are wider than the bulk microdomain width. For such systems, our analysis (i) shows that mass conservation causes the microdomain interfaces to oscillate about their bulk positions and (ii) determines the length scale over which these oscillations decay away from the substrate.
Patrone, P.
and Gallatin, G.
(2013),
Block-copolymer healing of simple defects in a chemoepitaxial template, SPIE Conference Proceedings, [online], https://doi.org/10.1117/12.2011656
(Accessed May 30, 2023)