Reversible Electronic Solid-Gel Switching of a Conjugated Polymer.

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ID: 87675
2020
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Ranked #18 of 57 articles by views in Advanced science (Weinheim, Baden-Wurttemberg, Germany)

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Abstract
Conjugated polymers exhibit electrically driven volume changes when included in electrochemical devices via the exchange of ions and solvent. So far, this volumetric change is limited to 40% and 100% for reversible and irreversible systems, respectively, thus restricting potential applications of this technology. A conjugated polymer that reversibly expands by about 300% upon addressing, relative to its previous contracted state, while the first irreversible actuation can achieve values ranging from 1000-10 000%, depending on the voltage applied is reported. From experimental and theoretical studies, it is found that this large and reversible volumetric switching is due to reorganization of the polymer during swelling as it transforms between a solid-state phase and a gel, while maintaining percolation for conductivity. The polymer is utilized as an electroactive cladding to reduce the void sizes of a porous carbon filter electrode by 85%.
Reference Key
gladisch2020reversibleadvanced Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gladisch, Johannes;Stavrinidou, Eleni;Ghosh, Sarbani;Giovannitti, Alexander;Moser, Maximilian;Zozoulenko, Igor;McCulloch, Iain;Berggren, Magnus;
Journal Advanced science (Weinheim, Baden-Wurttemberg, Germany)
Year 2020
DOI
10.1002/advs.201901144
URL
Keywords
hydrogels conjugated polymers electroactive materials volume change

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