Decoupling order and conductivity in doped conducting polymers

David Mayevsky, Eliot Gann, Christopher J. Garvey, Christopher R. McNeill, Bjorn Winther Jensen

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    Herein it is demonstrated that the high level of interchain ordering of pEDOT is not necessary for the polymer to have efficient charge transport. Resistance and order are compared during the manufacturing process, where the polymerisation step and ordering step are decoupled as separate stages of the processing. GIWAXS experiments measuring interchain order are correlated to resistivity measurements at multiple stages of the manufacturing process on single films, and it is shown that for an individual film, where percolation is achieved, having a long range ordered system offers no reduction in resistance compared to having a highly disordered state of the same film. For this system, once the chains of pEDOT are formed, it is experimentally demonstrated that for percolation to be achieved, a remarkably low 4.5% volume fraction pEDOT is required. The apparent lack of necessity for significant interchain ordering allows for a meaningful measurement of development of the charge transport during the chemical polymerisation process.

    Original languageEnglish
    Pages (from-to)19397-19404
    Number of pages8
    JournalPhysical Chemistry Chemical Physics
    Volume18
    Issue number28
    DOIs
    Publication statusPublished - 2016

    ASJC Scopus subject areas

    • Physical and Theoretical Chemistry
    • Physics and Astronomy(all)

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  • Cite this

    Mayevsky, D., Gann, E., Garvey, C. J., McNeill, C. R., & Winther Jensen, B. (2016). Decoupling order and conductivity in doped conducting polymers. Physical Chemistry Chemical Physics, 18(28), 19397-19404. https://doi.org/10.1039/c6cp03307e