Controlling Molecular Ordering in Aqueous Conducting Polymers Using Ionic Liquids.

Kee, Seyoung; Kim, Nara; Kim, Bong Seong; Park, Seongjin; Jang, Yun Hee; Lee, Seoung Ho; Kim, Jehan; Kim, Junghwan et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

The molecular ordering of aqueous conducting polymers is controlled using a rational method. By introducing various ionic liquids, which have designed electrostatic interactions to PEDOT:PSS solutions, the evolution of the molecular ordering of the PEDOT is manipulated. Consequently, highly ordered nanostructures are achieved with a reduced π-π stacking distance of ≈3.38 Å and, thus, a maximum σ<sub>dc</sub> of ≈2100 S cm<sup>-1</sup> .