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

*Corresponding author for this work

Research output: Contribution to journalArticle

16 Scopus citations

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

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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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