Stretchable Conductive Composites from Cu-Ag Nanowire Felt.


Journal Article

Materials that retain a high conductivity under strain are essential for wearable electronics. This article describes a conductive, stretchable composite consisting of a Cu-Ag core-shell nanowire felt infiltrated with a silicone elastomer. This composite exhibits a retention of conductivity under strain that is superior to any composite with a conductivity greater than 1000 S cm-1. This work also shows how the mechanical properties, conductivity, and deformation mechanism of the composite changes as a function of the stiffness of the silicone matrix. The retention of conductivity under strain was found to decrease as the Young's modulus of the matrix increased. This was attributed to void formation as a result of debonding between the nanowire felt and the elastomer. The nanowire composite was also patterned to create serpentine circuits with a stretchability of 300%.

Full Text

Duke Authors

Cited Authors

  • Catenacci, MJ; Reyes, C; Cruz, MA; Wiley, BJ

Published Date

  • April 2018

Published In

Volume / Issue

  • 12 / 4

Start / End Page

  • 3689 - 3698

PubMed ID

  • 29537819

Pubmed Central ID

  • 29537819

Electronic International Standard Serial Number (EISSN)

  • 1936-086X

International Standard Serial Number (ISSN)

  • 1936-0851

Digital Object Identifier (DOI)

  • 10.1021/acsnano.8b00887


  • eng