Conductive and Stretchable Silver-Polymer Blend for Electronic Applications

Todd Houghton, Jignesh Vanjaria, Hongbin Yu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


Stretchable and flexible electronic devices have gained significant attention in recent years, as they can be integrated into many systems such as medical sensors, displays, and robots. One of the primary areas of research is designing stretchable interconnects which provide adequate conductivity and mechanical robustness. Metal-based interconnects have been reported to have the highest conductivity, but are not stretchable enough, while elastomer interconnects are not conductive enough. In this paper we report a silver polymer blend composite that provides excellent conductivity, stretchability and flexibility for use as a stretchable interconnect. The composite was prepared by dispersing silver flakes in a Polyvinyl alcohol (PVA), Phosphoric acid (H3PO4) and poly(3,4-ethyl-ene-dioxythiophene) (PEDOT): Poly(styrene sulfonic acid) (PSS) polymer mixture. Silver was chosen as it has the highest conductivity of all metals, while the PEDOT:PSS/PVA-H3PO4 blend was chosen as the blend offers a practical trade-off between conductivity and stretchability for the composite matrix. The polymer blend provides conductive pathways between the silver flakes, leading to the blend's superior electrical properties, even at large deformations. The synthesis process of the composite material, along with the observed electrical and mechanical properties of the composite will be presented in detail.

Original languageEnglish (US)
Title of host publicationProceedings - ECTC 2016
Subtitle of host publication66th Electronic Components and Technology Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages5
ISBN (Electronic)9781509012039
StatePublished - Aug 16 2016
Externally publishedYes
Event66th IEEE Electronic Components and Technology Conference, ECTC 2016 - Las Vegas, United States
Duration: May 31 2016Jun 3 2016


Other66th IEEE Electronic Components and Technology Conference, ECTC 2016
Country/TerritoryUnited States
CityLas Vegas


  • High Conductivity
  • PVA
  • Silver
  • Strechability
  • Stretchable Interconnect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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