Surface wrinkling of an elastic film: Effect of residual surface stress

Chiao Chi Lin, Fuqian Yang, Sanboh Lee

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

The effect of residual surface compression on the surface evolution of solid thin films was analyzed. Analytical relation was derived among the apparent surface stress, the spatial frequency of the surface modulation, and the film thickness. Using this relationship, we calculated the dependence of the apparent surface stress on the film thickness from the experimental results of the polymer resist coated on glass slide. The magnitude of the apparent surface stress decreased with the reduction in the film thickness, and it approached a constant of 0.46 kN/m as the thickness of the films approached zero. The result is possibly applied to nanoimprint technology.

Original languageEnglish
Pages (from-to)13627-13631
Number of pages5
JournalLangmuir
Volume24
Issue number23
DOIs
StatePublished - Dec 2 2008

ASJC Scopus subject areas

  • Materials Science (all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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