An unconventional route to hierarchically ordered block copolymers on a gradient patterned surface through controlled evaporative self-assembly

Myunghwan Byun; Wei Han; Bo Li; Xukai Xin; Zhiqun Lin

doi:10.1002/anie.201208421

An unconventional route to hierarchically ordered block copolymers on a gradient patterned surface through controlled evaporative self-assembly

Myunghwan Byun, Wei Han, Bo Li, Xukai Xin, Zhiqun Lin

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

A chemically patterned surface was formed by controlled evaporative self-assembly of concentric polymer stripes, followed by the removal of weakly deposited polymer, giving ultrathin polymer stripes with a width gradient on the Si substrate (see picture). A thin film of diblock copolymer hierarchically self-assembled on the ultrathin polymer stripes, giving arrays of nanocylinders perpendicular to the surface of the film.

Original language	English
Pages (from-to)	1122-1127
Number of pages	6
Journal	Angewandte Chemie - International Edition
Volume	52
Issue number	4
DOIs	https://doi.org/10.1002/anie.201208421
State	Published - 21 Jan 2013

Keywords

block copolymers
controlled evaporative self-assembly
hierarchically ordered structures
surface patterning

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AU - Xin, Xukai

AU - Lin, Zhiqun

PY - 2013/1/21

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AB - A chemically patterned surface was formed by controlled evaporative self-assembly of concentric polymer stripes, followed by the removal of weakly deposited polymer, giving ultrathin polymer stripes with a width gradient on the Si substrate (see picture). A thin film of diblock copolymer hierarchically self-assembled on the ultrathin polymer stripes, giving arrays of nanocylinders perpendicular to the surface of the film.

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KW - controlled evaporative self-assembly

KW - hierarchically ordered structures

KW - surface patterning

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An unconventional route to hierarchically ordered block copolymers on a gradient patterned surface through controlled evaporative self-assembly

Abstract

Keywords

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