Wrinkling of Ultrathin Polymer Films


This paper presents a bilayer model to account for surface effects on the wrinkling of ultrathin polymer films. Assuming a surface layer of finite thickness, effects of surface properties on the critical strain, the equilibrium wavelength, and the wrinkle amplitude are discussed in comparison with conventional analysis. Experimental measurements of wrinkling in polymer films with thickness ranging from 200 nm to 5 nm are conducted. The bilayer model provides a consistent understanding of the experiments that deviate from conventional analysis for thickness less than 30 nm. A set of empirical surface properties is deduced from the experimental data.

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Correspondence to Rui Huang.

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Huang, R., Stafford, C.M. & Vogt, B.D. Wrinkling of Ultrathin Polymer Films. MRS Online Proceedings Library 924, 410 (2006). https://doi.org/10.1557/PROC-0924-Z04-10

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