Controlling Electrochemically Induced Volume Changes in Conjugated Polymers by Chemical Design: from Theory to Devices

Maximilian Moser; Johannes Gladisch; Sarbani Ghosh; Tania Cecilia Hidalgo; James F. Ponder; Rajendar Sheelamanthula; Quentin Thiburce; Nicola Gasparini; Andrew Wadsworth; Alberto Salleo; Sahika Inal; Magnus Berggren; Igor Zozoulenko; Eleni Stavrinidou; Iain McCulloch

doi:10.1002/adfm.202100723

journal article·2021-06

Controlling Electrochemically Induced Volume Changes in Conjugated Polymers by Chemical Design: from Theory to Devices

Maximilian Moser, Johannes Gladisch, Sarbani Ghosh, Tania Cecilia Hidalgo, James F. Ponder, Rajendar Sheelamanthula, Quentin Thiburce, Nicola Gasparini, Andrew Wadsworth, Alberto Salleo, Sahika Inal, Magnus Berggren, Igor Zozoulenko, Eleni Stavrinidou, Iain McCulloch

Advanced Functional Materials· Volume 31· Issue 26

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Source abstract

Abstract

Abstract Electrochemically induced volume changes in organic mixed ionic‐electronic conductors (OMIECs) are particularly important for their use in dynamic microfiltration systems, biomedical machinery, and electronic devices. Although significant advances have been made to maximize the dimensional changes that can be accomplished by OMIECs, there is currently limited understanding of how changes in their molecular structures impact their underpinning fundamental processes and their performance in electronic devices. Herein, a series of ethylene glycol functionalized conjugated polymers is synthesized, and their electromechanical properties are evaluated through a combined approach of experimental measurements and molecular dynamics simulations. As demonstrated, alterations in the molecular structure of OMIECs impact numerous processes occurring during their electrochemical swelling, with sidechain length shortening decreasing the number of incorporated water molecules, reducing the generated void volumes and promoting the OMIECs to undergo different phase transitions. Ultimately, the impact of these combined molecular processes is assessed in organic electrochemical transistors, revealing that careful balancing of these phenomena is required to maximize device performance.

Source: crossref · Quality: baseline

Research context

Polymers Electronic materials

OpenAlex topics: Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

University of Oxford Department of Chemistry Oxford OX1 3TA UK

Linköping University Department of Science and Technology Laboratory of Organic Electronics Norrköping SE‐60174 Sweden

Wallenberg Wood Science Center Department of Science and Technology Linköping University Norrköping SE‐60174 Sweden

Birla Institute of Technology and Science (BITS) Department of Chemical Engineering Pilani 333031 India

King Abdullah University of Science and Technology (KAUST) Biological Sciences and Engineering Division Thuwal 23955–6900 Saudi Arabia

George W. Woodruff School of Mechanical Engineering Georgia Institute of Technology Atlanta GA 30332 USA

King Abdullah University of Science and Technology (KAUST) Physical Science and Engineering Division Thuwal 23955–6900 Saudi Arabia

Stanford University Department of Materials Science and Engineering Stanford CA 94305 USA

Imperial College London Department of Chemistry and Center for Plastic Electronics London W12 0BZ UK

Funding

King Abdullah University of Science and Technology · Wallenberg Wood Science Center

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