Micropatterning of block copolymer micelle thin films using solvent capillary contact printing

Wonseok Hwang, Moon Ho Ham, Byeong Hyeok Sohn, June Huh, Yong Soo Kang, Wonyong Jeong, Jae Min Myoung, Cheolmin Park

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

This paper describes a new and facile method, 'solvent capillary contact printing (SCCP)', that fabricates micro-patterned hydrophilic/hydrophobic surface caused by the selective manipulation of nanometre-scale block copolymer micelles. The method is based on using capillary injection and evaporation of a solvent, which is preferential to a core block of micelles, through poly(dimethylsiloxane) (PDMS) microchannels placed on a pre-formed block copolymer micelle monolayer. We produced well-defined surface micropatterns where a nanostructure consisting of core-opened micelles gave rise to hydrophilic surface property in the regions in contact with solvent while one consisting of hemispherical micelles remained hydrophobic in the regions contacted by the PDMS mould. Our method allows repetitive micropatterning; a surface micropattern previously formed is simply erased by exposure of preferential solvent vapour due to reversible structure modification of micelles. Furthermore, SCCP with various metal salts, precursors of metal nanoparticles, enables us to fabricate micropatterned arrays of well-separated metal nanoparticles which can be used as a catalyst for synthesizing nanowires. The micropatterned arrays of GaN nanowires are demonstrated, fabricated by SCCP.

Original languageEnglish
Pages (from-to)2897-2902
Number of pages6
JournalNanotechnology
Volume16
Issue number12
DOIs
Publication statusPublished - 2005 Dec 1
Externally publishedYes

Fingerprint

Printing
Micelles
Block copolymers
Thin films
Nanowires
Metal Nanoparticles
Metal nanoparticles
Polydimethylsiloxane
Surface Properties
Nanostructures
Microchannels
Surface properties
Monolayers
Evaporation
Fungi
Salts
Metals
Vapors
Catalysts
Injections

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Micropatterning of block copolymer micelle thin films using solvent capillary contact printing. / Hwang, Wonseok; Ham, Moon Ho; Sohn, Byeong Hyeok; Huh, June; Kang, Yong Soo; Jeong, Wonyong; Myoung, Jae Min; Park, Cheolmin.

In: Nanotechnology, Vol. 16, No. 12, 01.12.2005, p. 2897-2902.

Research output: Contribution to journalArticle

Hwang, W, Ham, MH, Sohn, BH, Huh, J, Kang, YS, Jeong, W, Myoung, JM & Park, C 2005, 'Micropatterning of block copolymer micelle thin films using solvent capillary contact printing', Nanotechnology, vol. 16, no. 12, pp. 2897-2902. https://doi.org/10.1088/0957-4484/16/12/028
Hwang, Wonseok ; Ham, Moon Ho ; Sohn, Byeong Hyeok ; Huh, June ; Kang, Yong Soo ; Jeong, Wonyong ; Myoung, Jae Min ; Park, Cheolmin. / Micropatterning of block copolymer micelle thin films using solvent capillary contact printing. In: Nanotechnology. 2005 ; Vol. 16, No. 12. pp. 2897-2902.
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