New Slip Regimes and the Shape of Dewetting Thin Liquid Films

R. Fetzer, K. Jacobs, A. Münch, B. Wagner, and T. P. Witelski
Phys. Rev. Lett. 95, 127801 – Published 14 September 2005

Abstract

We compare the flow behavior of liquid polymer films on silicon wafers coated with either octadecyl-(OTS) or dodecyltrichlorosilane (DTS). Our experiments show that dewetting on DTS is significantly faster than on OTS. We argue that this is tied to the difference in the solid/liquid friction. As the film dewets, the profile of the rim advancing into the undisturbed film is monotonically decaying on DTS but has an oscillatory structure on OTS. For the first time we can describe this transition in terms of a lubrication model with a Navier-slip condition for the flow of a viscous Newtonian liquid.

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  • Received 20 December 2004

DOI:https://doi.org/10.1103/PhysRevLett.95.127801

©2005 American Physical Society

Authors & Affiliations

R. Fetzer and K. Jacobs

  • Department of Experimental Physics, Saarland University, 66041 Saarbrücken, Germany

A. Münch

  • Institute of Mathematics, Humboldt University Berlin, 10099 Berlin, Germany and WIAS, Mohrenstraße 39, 10117 Berlin, Germany

B. Wagner

  • WIAS, Mohrenstraße 39, 10117 Berlin, Germany

T. P. Witelski

  • Department of Mathematics, Duke University, Durham, North Carolina 27708-0320, USA

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Issue

Vol. 95, Iss. 12 — 16 September 2005

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