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Stretchable gold conductors on elastomeric substrates

Appl. Phys. Lett. 82, 2404 (2003); doi:10.1063/1.1565683

Issue Date: 14 April 2003

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Stéphanie Périchon Lacour and Sigurd Wagner
Department of Electrical Engineering, Princeton University, Princeton New Jersey 08544

Zhenyu Huang and Z. Suo
Department of Mechanical and Aerospace Engineering and Princeton Material Institute, Princeton University, Princeton New Jersey 08544
Stripes of thin gold films are made on an elastomeric substrate with built-in compressive stress to form surface waves. Because these waves can be stretched flat they function as elastic electrical conductors. Surprisingly, we observe electrical continuity not only up to an external strain of ~2% reached by stretching the films first flat (~0.4%) and then to the fracture strain of free-standing gold films (~1%), but up to ~22%. Such large strains will permit making stretchable electric conductors that will be essential to three-dimensional electronic circuits. ©2003 American Institute of Physics.
History: Received 27 December 2002; accepted 13 February 2003
Permalink: http://link.aip.org/link/?APPLAB/82/2404/1
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KEYWORDS and PACS

Keywords
PACS
  • 73.61.At
    Electrical properties of metal and metallic alloys (thin films)
  • 68.60.Bs
    Mechanical and acoustical properties of thin films
  • 85.40.Ls
    Metallization, contacts, interconnects; device isolation
  • 81.40.Lm
    Deformation, plasticity, and creep
  • 62.20.Fe
    Deformation and plasticity including yield, ductility, and superplasticity
  • YEAR: 2003

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ISSN:
0003-6951 (print)   1077-3118 (online)
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