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Spin-Coating Self-Assembly for Micropatterning of Ultrathin Multilayer Films

Published online by Cambridge University Press:  10 February 2011

Hongseok Jang
Affiliation:
School of Chemical Engineering, Seoul National University, San 56–1, Shinlim-dong, Kwanak-gu, Seoul 151-744, Korea
Sangcheol Kim
Affiliation:
School of Chemical Engineering, Seoul National University, San 56–1, Shinlim-dong, Kwanak-gu, Seoul 151-744, Korea
Kookheon Char
Affiliation:
School of Chemical Engineering, Seoul National University, San 56–1, Shinlim-dong, Kwanak-gu, Seoul 151-744, Korea
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Abstract

A new approach to create layer-by-layer assembled multilayer ultrathin films with welldefined micropatterns in a short process time is introduced. To achieve such micropatterns with high line resolution in organic multilayer films, microfluidic channels were combined with the convective self-assembly process employing both hydrogen bonding and electrostatic intermolecular interactions. The channels were initially filled with polymer solution by capillary pressure and the residual solution was then removed by spinning process. The micropatterns with distinct line boundaries were obtained and the small ridges were also observed at the edges of the patterned lines. Spin self-assembled vertical heterostructural multilayer patterning using (PVP/PAA)5 micropatterns, which were prepared with microfluidic channels, as a template was also investigated.

Type
Research Article
Copyright
Copyright © Materials Research Society 2003

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