Large area ordered lateral patterns in confined polymer thin films

Hao L. Zhang, Toshiki Okayasu, David G. Bucknall*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


The thermal stability of a model system consisting of a polymer film on a Si substrate capped by a thin metal layer has been investigated. When the model system is heated to a sufficiently high temperature characteristic surface wrinkling structures are formed with well defined periodicity over large areas. It is suggested that this wave-like surface morphology is driven by the thermal expansion coefficient mismatch of the different layers. A mechanism based on bending of a thin stiff surface on a thin elastic medium has been adopted to predict the pattern periodicity which gives satisfactory results with the experimental values.

Original languageEnglish
Pages (from-to)981-986
Number of pages6
JournalEuropean Polymer Journal
Issue number5
Early online date10 Mar 2004
Publication statusPublished - May 2004


  • Polymers
  • Topography

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics


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