Polaron Disproportionation Charge Transport in a Conducting Redox Polymer

Hao Huang, Christoffer Karlsson, Fikret Mamedov, Maria Strømme, Adolf Gogoll, Martin Sjödin*

*この研究の対応する著者

    研究成果: Article査読

    9 被引用数 (Scopus)

    抄録

    Herein we report a mechanistic study of the charge transport in poly-3-((2,5-hydroquinone)vinyl)-1H-pyrrole by conductance measurements at various temperatures performed in situ during doping of the polypyrrole backbone in contact with an aqueous electrolyte. Charge transport was found to occur by electron hopping with associated electron transfer activation energies in the range of 0.08-0.2 eV. In situ electron paramagnetic resonance experiments indicated polarons as the dominant charge carriers and the charge transport was found to follow a second-order dependence with respect to the number of accumulated charges. Based on the findings, we present a polaron comproportionation/disproportionation model for electron conduction in poly-3-((2,5-hydroquinone)vinyl)-1H-pyrrole, thus, providing a complement to existing models for charge propagation in conducting polymers.

    本文言語English
    ページ(範囲)13078-13083
    ページ数6
    ジャーナルJournal of Physical Chemistry C
    121
    24
    DOI
    出版ステータスPublished - 2017 6月 22

    ASJC Scopus subject areas

    • 電子材料、光学材料、および磁性材料
    • エネルギー(全般)
    • 物理化学および理論化学
    • 表面、皮膜および薄膜

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