Stretchable and compressible thin films of stiff materials on compliant wavy substrates

J. Xiao, A. Carlson, Z. J. Liu, Y. Huang, Hanqing Jiang, J. A. Rogers

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

This letter presents experimental, numerical, and analytical studies of Au thin films on elastomeric substrates of poly(dimethylsiloxane) that are designed with sinusoidal, "wavy" features of surface relief. Such systems can be useful as stretchable conductors in electronic or sensory devices. The maximum film strain is obtained in terms of film and substrate elastic moduli, film thickness, amplitude and wavelength of the wavy profile, and the applied strain. These analytical solutions agree well with both finite element analysis and experimentally measured changes in the sinusoidal profile under small, uniaxial strains. A simple expression for the system stretchability and compressibility is established.

Original languageEnglish (US)
Article number013109
JournalApplied Physics Letters
Volume93
Issue number1
DOIs
StatePublished - 2008

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axial strain
thin films
profiles
compressibility
modulus of elasticity
film thickness
conductors
electronics
wavelengths

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Stretchable and compressible thin films of stiff materials on compliant wavy substrates. / Xiao, J.; Carlson, A.; Liu, Z. J.; Huang, Y.; Jiang, Hanqing; Rogers, J. A.

In: Applied Physics Letters, Vol. 93, No. 1, 013109, 2008.

Research output: Contribution to journalArticle

Xiao, J. ; Carlson, A. ; Liu, Z. J. ; Huang, Y. ; Jiang, Hanqing ; Rogers, J. A. / Stretchable and compressible thin films of stiff materials on compliant wavy substrates. In: Applied Physics Letters. 2008 ; Vol. 93, No. 1.
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