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

J. Xiao; A. Carlson; Z. J. Liu; Y. Huang; H. Jiang; J. A. Rogers

doi:10.1063/1.2955829

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

J. Xiao^*, A. Carlson, Z. J. Liu, Y. Huang, H. Jiang, J. A. Rogers

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

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 language	English (US)
Article number	013109
Journal	Applied Physics Letters
Volume	93
Issue number	1
DOIs	https://doi.org/10.1063/1.2955829
State	Published - Jul 21 2008

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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AU - Xiao, J.

AU - Carlson, A.

AU - Liu, Z. J.

AU - Huang, Y.

AU - Jiang, H.

AU - Rogers, J. A.

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N2 - 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.

AB - 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.

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