Forming wrinkled stiff films on polymeric substrates at room temperature for stretchable interconnects applications

Cunjiang Yu, Hanqing Jiang

Research output: Contribution to journalArticle

65 Scopus citations

Abstract

Periodically wrinkled stiff thin films on elastomeric substrates have been found extensive applications, such as in stretchable electronics. This paper presents a cost-effective and simple method to form wrinkled stiff SiO x thin films on polydimethylsiloxane (PDMS) substrates at room temperature by ultraviolet/ozone (UV/O) radiation on pre-strained PDMS. Systemic studies have been conducted to understand the dependence of the wavy profile on the PDMS pre-strain, UV/O exposure time, and PDMS modulus. The mechanics analysis has been verified to be quantitatively or qualitatively accurate by experimental comparisons. The wrinkled SiOx/PDMS system is stretchable and provides a wavy mold for stretchable electrodes. The constant electrical resistance during mechanical stretching shows the stretchability of this system.

Original languageEnglish (US)
Pages (from-to)818-822
Number of pages5
JournalThin Solid Films
Volume519
Issue number2
DOIs
StatePublished - Nov 1 2010

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Keywords

  • Polydimethylsiloxane
  • Stretchable electronics
  • Thins films
  • Wrinkle

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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