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Ground-state electron transfer in all-polymer donor:acceptor blends enables aqueous processing of water-insoluble conjugated polymers
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-3995-2776
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-0300-8089
Linköping University, Department of Science and Technology, Laboratory of Organic Electronics. Linköping University, Faculty of Science & Engineering. N Ink AB, Norrkoping, Sweden.ORCID iD: 0000-0003-4270-1131
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2023 (English)In: Nature Communications, E-ISSN 2041-1723, Vol. 14, no 1, article id 8454Article in journal (Refereed) Published
Abstract [en]

Water-based conductive inks are vital for the sustainable manufacturing and widespread adoption of organic electronic devices. Traditional methods to produce waterborne conductive polymers involve modifying their backbone with hydrophilic side chains or using surfactants to form and stabilize aqueous nanoparticle dispersions. However, these chemical approaches are not always feasible and can lead to poor material/device performance. Here, we demonstrate that ground-state electron transfer (GSET) between donor and acceptor polymers allows the processing of water-insoluble polymers from water. This approach enables macromolecular charge-transfer salts with 10,000x higher electrical conductivities than pristine polymers, low work function, and excellent thermal/solvent stability. These waterborne conductive films have technological implications for realizing high-performance organic solar cells, with efficiency and stability superior to conventional metal oxide electron transport layers, and organic electrochemical neurons with biorealistic firing frequency. Our findings demonstrate that GSET offers a promising avenue to develop water-based conductive inks for various applications in organic electronics. Chemical approaches to improve aqueous dispersions of conjugated polymers are limited by the feasibility of modifying the backbone or lead to poor performance. Here, Liu et al. show that ground-state electron transfer in donor:acceptor blends aids aqueous dispersion, for high conductivity and solubility.

Place, publisher, year, edition, pages
NATURE PORTFOLIO , 2023. Vol. 14, no 1, article id 8454
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-200263DOI: 10.1038/s41467-023-44153-7ISI: 001130478800004PubMedID: 38114560OAI: oai:DiVA.org:liu-200263DiVA, id: diva2:1829636
Note

Funding Agencies|Knut and Alice Wallenberg Foundation; Swedish Research Council [2021.0058, 2021.0230, 2022.0034]; Olle Engkvists Stiftelse [2020-03243, 2020-04538, 2022-04553]; VINNOVA [204-0256]; European Commission through the MITICS project [2020-05223]; European Commission through the HORATES project [GA-964677]; European Commission through the SUNREY project [GA-955837]; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoeping University [GA-101084422]; Swedish Energy Agency [SFO-Mat-LiU 2009-00971]; National Research Foundation (NRF) of Korea [EM48594-1]; [2019R1A6A1A11044070]

Available from: 2024-01-19 Created: 2024-01-19 Last updated: 2024-01-23

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Shimolo, Asaminew Yerango

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Liu, TiefengHeimonen, JohannaZhang, QilunYang, ChiyuanHuang, Jun-DaWu, HanyanStoeckel, Marc-Antoinevan der Pol, TomLi, YuxuanPuttisong, YuttapoomShimolo, Asaminew YerangoLiu, XianjieZhang, SilanLi, QifanMassetti, MatteoChen, WeiminGao, FengFahlman, MatsKroon, ReneeFabiano, Simone
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