Fabric-based stretchable electronics with mechanically optimized designs and prestrained composite substrates

Renxiao Xu, Kyung In Jang, Yinji Ma, Han Na Jung, Yiyuan Yang, Moongee Cho, Yihui Zhang, Yonggang Huang, John A. Rogers

Research output: Contribution to journalArticlepeer-review

Abstract

A mechanically rugged form of stretchable electronics can be achieved through integration of functional materials and devices with composite substrates consisting of an ultralow modulus silicone adhesive layer on a strain-limiting fabric framework. The resulting system is sufficiently soft to enable extreme levels of deformation and non-invasive use on the skin, yet sufficiently robust for repetitive application/detachment. This letter introduces theoretical and experimental studies of mechanical designs, with optimization for a representative island-bridge device configuration to yield high levels of elastic stretchability. The physics of prestrain conversion and its role in enhancing the stretchability are systematically explored.

Original languageEnglish (US)
Pages (from-to)120-126
Number of pages7
JournalExtreme Mechanics Letters
Volume1
DOIs
StatePublished - Dec 1 2014

Keywords

  • Fabric
  • Finite element analyses
  • Prestrain
  • Serpentine interconnect
  • Stretchable electronics

ASJC Scopus subject areas

  • Bioengineering
  • Chemical Engineering (miscellaneous)
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Mechanical Engineering

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