Polymers (Feb 2020)

A New Composite Structure of PEDOT/PSS: Macro-Separated Layers by a Polyelectrolyte Brush

  • Keita Yasumoro,
  • Yushi Fujita,
  • Hideki Arimatsu,
  • Takuya Fujima

DOI
https://doi.org/10.3390/polym12020456
Journal volume & issue
Vol. 12, no. 2
p. 456

Abstract

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Polyethylene dioxythiophene and polyethylene sulfonic acid (PEDOT/PSS) composite is gathering attention as an organic transparent conductive film material. However, it requires a core-shell structure in which conductive PEDOT is covered with insulating PSS. Providing film formability and a carrier to PEDOT, the PSS shell hinders carrier conduction as an insulating barrier. In this study, we realized that creating a macro-separated PEDOT/PSS composite by using a polyelectrolyte brush substrate and in-situ PEDOT polymerization without the PSS barrier increases durability and conductivity in comparison with commercially available PEDOT/PSS film, achieving a conductivity of 5000−6000 S/cm.

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