Poly(ionic liquid)-stabilized graphene sheets and their hybrid with poly(3,4-ethylenedioxythiophene)

Tran Thanh Tung, Tae Young Kim, Jong Pil Shim, Woo Seok Yang, Hyeongkeun Kim, Kwang S. Suh

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Hybrid materials of reduced graphene oxide (RG-O) and poly(3,4- ethylenedioxythiophene) (PEDOT) were prepared by poly(ionic liquid)-mediated hybridization. In this hybrid material, poly(ionic liquid)s (PILs) are found to be preferentially physisorbed onto the RG-O platelets, and allow them to be dispersed as a homogeneous colloidal system. In addition to the function as an effective stabilizer, the PIL also promotes PEDOT growth on RG-O platelets through favorable molecular interaction of PIL with PEDOT chains. The resulting material, a hybrid of RG-O and PEDOT showed an electrical conductivity of 18.8 S/cm at a RG-O loading of 0.3 wt.%, and its thin film on glass substrate showed a surface resistivity as low as 1.8 × 104 /sq at an optical transmittance of 91.18%.

Original languageEnglish
Pages (from-to)2215-2224
Number of pages10
JournalOrganic Electronics
Volume12
Issue number12
DOIs
Publication statusPublished - 2011 Dec

Keywords

  • Conducting polymer
  • Graphene
  • Hybrid composites
  • Poly(ionic liquid)
  • Transparent conductive film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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