Controlled orientation of block copolymers on defect-free faceted surfaces

Sung Woo Hong; Dmitriy L Voronov; Dong Hyun Lee; Alexander Hexemer; Howard A Padmore; Ting Xu; Thomas P Russell

doi:10.1002/adma.201201279

Controlled orientation of block copolymers on defect-free faceted surfaces

Adv Mater. 2012 Aug 16;24(31):4278-83. doi: 10.1002/adma.201201279. Epub 2012 Jul 3.

Authors

Sung Woo Hong¹, Dmitriy L Voronov, Dong Hyun Lee, Alexander Hexemer, Howard A Padmore, Ting Xu, Thomas P Russell

Affiliation

¹ Department of Polymer Science and Engineering, 120 Governors Drive, University of Massachusetts Amherst, Amherst, MA 01003, USA.

PMID: 22761040
DOI: 10.1002/adma.201201279

Abstract

The effect of a faceted surface geometry on controlling the direction of well-defined line patterns of block copolymer (BCP) microdomains over macroscopic areas is reported. Facets with asymmetric base angles can control the direction of BCP microdomains oriented either parallel or perpendicular to the facets depending on BCP film thickness.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Polyethylene Glycols / chemistry
Polymers / chemistry*
Polystyrenes / chemistry
Scattering, Small Angle
Surface Properties
X-Ray Diffraction

Substances

Polymers
Polystyrenes
polystyrene-b-poly(ethylene oxide)
Polyethylene Glycols