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 journalArticlepeer-review

    83 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

    Bibliographical note

    Funding Information:
    This work was supported by InsCon Tech. Co. Ltd., Korea, and Korea Ministry of Environment as the Eco-Innovation Project (Global-Top Project).

    Keywords

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

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • General Chemistry
    • Condensed Matter Physics
    • Materials Chemistry
    • Electrical and Electronic Engineering
    • Biomaterials

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