The Role of the Side Chain on the Performance of N-type Conjugated Polymers in Aqueous Electrolytes

Chemistry of Materials : a Publication of the American Chemical Society
Alexander GiovannittiIain McCulloch

Abstract

We report a design strategy that allows the preparation of solution processable n-type materials from low boiling point solvents for organic electrochemical transistors (OECTs). The polymer backbone is based on NDI-T2 copolymers where a branched alkyl side chain is gradually exchanged for a linear ethylene glycol-based side chain. A series of random copolymers was prepared with glycol side chain percentages of 0, 10, 25, 50, 75, 90, and 100 with respect to the alkyl side chains. These were characterized to study the influence of the polar side chains on interaction with aqueous electrolytes, their electrochemical redox reactions, and performance in OECTs when operated in aqueous electrolytes. We observed that glycol side chain percentages of >50% are required to achieve volumetric charging, while lower glycol chain percentages show a mixed operation with high required voltages to allow for bulk charging of the organic semiconductor. A strong dependence of the electron mobility on the fraction of glycol chains was found for copolymers based on NDI-T2, with a significant drop as alkyl side chains are replaced by glycol side chains.

References

Feb 19, 2013·Advanced Materials·Michele SessoloGeorge G Malliaras
Mar 14, 2013·Nature Communications·Dion KhodagholyGeorge G Malliaras
Jul 16, 2013·Nature Communications·Dion KhodagholyGeorge G Malliaras
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Apr 20, 2016·Nature Communications·Jonathan RivnayGeorge G Malliaras
Jul 23, 2016·Journal of the American Chemical Society·Christian B NielsenIain McCulloch
Oct 8, 2016·Nature Communications·Alexander GiovannittiIain McCulloch
Oct 25, 2016·Advanced Science·Abdellah MaltiMagnus Berggren
Oct 30, 2016·Proceedings of the National Academy of Sciences of the United States of America·Alexander GiovannittiJonathan Rivnay
Jul 20, 2017·Advanced Materials·Jian LiuL Jan Anton Koster
Nov 28, 2017·Nature Communications·Sahika InalJonathan Rivnay
Jan 13, 2018·Advanced Materials·Jian LiuL Jan Anton Koster

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Citations

Jan 23, 2020·Advanced Materials·Guillaume SchweicherYves H Geerts
Jul 14, 2020·Advanced Materials·Alexander T LillThuc-Quyen Nguyen
Oct 15, 2019·Frontiers in Bioengineering and Biotechnology·Jonathan HopkinsDamia Mawad
Jan 30, 2020·Advanced Science·Johannes GladischMagnus Berggren
Dec 1, 2020·Advanced Materials·Tommaso NicoliniNatalie Stingelin
Dec 31, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jan RichtarJozef Krajcovic
Jul 2, 2021·Biosensors & Bioelectronics·Reem B RashidJonathan Rivnay
Jul 20, 2021·Journal of Materials Chemistry. C, Materials for Optical and Electronic Devices·Sophie GriggsIain McCulloch
Jul 17, 2021·ACS Applied Materials & Interfaces·Rajiv GiridharagopalDavid S Ginger
Oct 12, 2019·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Tom P A van der PolRené A J Janssen
Feb 20, 2019·Journal of the American Chemical Society·Lucas Q FlaggDavid S Ginger
Jan 14, 2021·ACS Applied Materials & Interfaces·David OhayonSahika Inal
Jul 13, 2019·ACS Applied Materials & Interfaces·Connor G BischakDavid S Ginger
Sep 2, 2021·Journal of the American Chemical Society·Anna A SzumskaJenny Nelson
Oct 5, 2021·Advanced Materials·Ali NawazPrashant Sonar
Oct 6, 2021·Chemical Reviews·Anil KokluSahika Inal
Oct 10, 2021·Advanced Materials·Glenn QuekGuillermo C Bazan
Dec 16, 2021·Chemical Reviews·Charalampos PitsalidisRóisín M Owens

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Methods Mentioned

BETA
biosensors
quartz crystal microbalance
QCM-D

Software Mentioned

LabView
MATLAB
Metrohm NOVA
PESA

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