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Simulation of Nanostructure Formation in Thin Polymer Films

Published online by Cambridge University Press:  01 February 2011

Dongchoul Kim  and
Wei Lu
Dongchoul Kim
Affiliation:
[email protected], United States
Wei Lu
Affiliation:
[email protected], University of Michigan, Mechanical Engineering, 2250 GGBrown, 2350 Hayward St., Ann Arbor, MI, 48109, United States
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Abstract

A thin polymer film subjected to an electrostatic field may lose stability at the polymer-air interface, leading to uniform self-organized pillars emerging out of the film surface. This paper presents a three dimensional dynamic model to account for the behavior. The coupled diffusion, viscous flow, and dielectric effect are incorporated into a phase field framework. Numerical simulations reveal rich dynamics of the pattern formation process and the substrate effect. The pillar size is insensitive to the film thickness, but the distance between pillars and the growth rate are significantly affected. The study suggests an approach to control structural formation in thin films with a designed electric field.

Keywords

polymerfilmself-assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 890: Symposium Y – Surface Engineering for Manufacturing Applications , 2005 , 0890-Y03-10
Copyright
Copyright © Materials Research Society 2006

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References

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