Three-dimensional nanonetworks for giant stretchability in dielectrics and conductors

Junyong Park, Shuodao Wang, Ming Li, Changui Ahn, Jerome K. Hyun, Dong Seok Kim, Do Kyung Kim, John A. Rogers, Yonggang Huang, Seokwoo Jeon*

*Corresponding author for this work

Research output: Contribution to journalArticle

187 Citations (Scopus)

Abstract

The realization of levels of stretchability that extend beyond intrinsic limits of bulk materials is of great importance to stretchable electronics. Here we report large-area, three-dimensional nano-architectures that achieve this outcome in materials that offer both insulating and conductive properties. For the elastomer poly(dimethylsiloxane), such geometries enhance the stretchability and fracture strain by ∼62% and ∼225% over the bulk, unstructured case. The underlying physics involves local rotations of narrow structural elements in the three-dimensional network, as identified by mechanical modelling. To demonstrate the applications of three-dimensional poly(dimethylsiloxane), we create a stretchable conductor obtained by filling the interstitial regions with liquid metal. This stretchable composite shows extremely high electrical conductivity (∼24,100 S cm-1) even at strains >200%, with good cyclic properties and with current-carrying capacities that are sufficient for interconnects in light-emitting diode systems. Collectively, these concepts provide new design opportunities for stretchable electronics.

Original languageEnglish (US)
Article number916
JournalNature communications
Volume3
DOIs
StatePublished - Jul 6 2012

Fingerprint

Electronic equipment
conductors
Elastomers
Electric Conductivity
Physics
Conservation of Natural Resources
elastomers
liquid metals
Liquid metals
electronics
Light emitting diodes
interstitials
light emitting diodes
Metals
Light
electrical resistivity
physics
composite materials
Geometry
Composite materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Cite this

Park, J., Wang, S., Li, M., Ahn, C., Hyun, J. K., Kim, D. S., ... Jeon, S. (2012). Three-dimensional nanonetworks for giant stretchability in dielectrics and conductors. Nature communications, 3, [916]. https://doi.org/10.1038/ncomms1929
Park, Junyong ; Wang, Shuodao ; Li, Ming ; Ahn, Changui ; Hyun, Jerome K. ; Kim, Dong Seok ; Kim, Do Kyung ; Rogers, John A. ; Huang, Yonggang ; Jeon, Seokwoo. / Three-dimensional nanonetworks for giant stretchability in dielectrics and conductors. In: Nature communications. 2012 ; Vol. 3.
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Three-dimensional nanonetworks for giant stretchability in dielectrics and conductors. / Park, Junyong; Wang, Shuodao; Li, Ming; Ahn, Changui; Hyun, Jerome K.; Kim, Dong Seok; Kim, Do Kyung; Rogers, John A.; Huang, Yonggang; Jeon, Seokwoo.

In: Nature communications, Vol. 3, 916, 06.07.2012.

Research output: Contribution to journalArticle

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