Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors
The increasing interest in organic electrochemical transistors (OECTs) for next-generation bioelectronic applications motivates the design of novel conjugated polymers with good electronic and ionic transport. Many conjugated polymers developed for organic field-effect transistors (OFETs) exhibit hi...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/154215 |
| _version_ | 1826115420801728512 |
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| author | Wu, Xihu Liu, Qian Surendran, Abhijith Bottle, Steven E. Sonar, Prashant Leong, Wei Lin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wu, Xihu Liu, Qian Surendran, Abhijith Bottle, Steven E. Sonar, Prashant Leong, Wei Lin |
| author_sort | Wu, Xihu |
| collection | NTU |
| description | The increasing interest in organic electrochemical transistors (OECTs) for next-generation bioelectronic applications motivates the design of novel conjugated polymers with good electronic and ionic transport. Many conjugated polymers developed for organic field-effect transistors (OFETs) exhibit high charge carrier mobilities but they are not suitable for OECTs due to poor ion-uptake arising from the non polar alkyl chain substituted on the conjugated backbone. They are also sensitive to moisture, resulting in poor performance in aqueous electrolytes. Herein, the widely used conjugated building block diketopyrrolopyrrole (DPP) is used and functionalized it with polar triethylene glycol side chains (PTDPP-DT) to promote ion penetration. The electrical performance of PTDPP-DT based OECT in two types of aqueous electrolytes is studied and the electrochemical doping response is investivated. It is found that the tetrafluoroborate (BF4−) anion with large crystallographic radius allows high-efficiency electrochemical doping of the PTDPP-DT polymer, and thus gives rise to the high transconductance of 21.4 ± 4.8 mS with good device stability, where it maintained over 91 % of its doped-state drain current after over 500 cycles of pulse measurement. |
| first_indexed | 2024-10-01T03:54:51Z |
| format | Journal Article |
| id | ntu-10356/154215 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:54:51Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1542152022-06-29T02:48:35Z Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors Wu, Xihu Liu, Qian Surendran, Abhijith Bottle, Steven E. Sonar, Prashant Leong, Wei Lin School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Anion-Dependent Materials Doping Efficiency The increasing interest in organic electrochemical transistors (OECTs) for next-generation bioelectronic applications motivates the design of novel conjugated polymers with good electronic and ionic transport. Many conjugated polymers developed for organic field-effect transistors (OFETs) exhibit high charge carrier mobilities but they are not suitable for OECTs due to poor ion-uptake arising from the non polar alkyl chain substituted on the conjugated backbone. They are also sensitive to moisture, resulting in poor performance in aqueous electrolytes. Herein, the widely used conjugated building block diketopyrrolopyrrole (DPP) is used and functionalized it with polar triethylene glycol side chains (PTDPP-DT) to promote ion penetration. The electrical performance of PTDPP-DT based OECT in two types of aqueous electrolytes is studied and the electrochemical doping response is investivated. It is found that the tetrafluoroborate (BF4−) anion with large crystallographic radius allows high-efficiency electrochemical doping of the PTDPP-DT polymer, and thus gives rise to the high transconductance of 21.4 ± 4.8 mS with good device stability, where it maintained over 91 % of its doped-state drain current after over 500 cycles of pulse measurement. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) Nanyang Technological University Submitted/Accepted version X.W. and Q.L. contributed equally to this work. W.L.L. would like to acknowledge funding support from her NTU start-up grant (M4081866), Ministry of Education (MoE) under AcRF Tier 2 grant (2018-T2-1-075), A*STAR AME IAF-ICP Grant (No. I1801E0030) and A*STAR AME Young Individual Research Grant (Project Number A1784c019). Q.L. is thankful to QUT for offering QUTPRA scholarship to conduct his research. P.S. would like to thank QUT for the financial support from the Australian Research Council (ARC) for the Future Fellowship (FT130101337) and QUT core funding (QUT/322120-0301/07) 2021-12-16T03:23:12Z 2021-12-16T03:23:12Z 2021 Journal Article Wu, X., Liu, Q., Surendran, A., Bottle, S. E., Sonar, P. & Leong, W. L. (2021). Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors. Advanced Electronic Materials, 7(1), 2000701-. https://dx.doi.org/10.1002/aelm.202000701 2199-160X https://hdl.handle.net/10356/154215 10.1002/aelm.202000701 2-s2.0-85096634519 1 7 2000701 en M4081866 2018-T2-1-075 I1801E0030 A1784c019 Advanced Electronic Materials 10.21979/N9/MVAOOB This is the peer reviewed version of the following article: Wu, X., Liu, Q., Surendran, A., Bottle, S. E., Sonar, P. & Leong, W. L. (2021). Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors. Advanced Electronic Materials, 7(1), 2000701-, which has been published in final form at https://doi.org/10.1002/aelm.202000701. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. application/pdf application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Anion-Dependent Materials Doping Efficiency Wu, Xihu Liu, Qian Surendran, Abhijith Bottle, Steven E. Sonar, Prashant Leong, Wei Lin Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title | Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title_full | Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title_fullStr | Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title_full_unstemmed | Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title_short | Enhancing the electrochemical doping efficiency in diketopyrrolopyrrole-based polymer for organic electrochemical transistors |
| title_sort | enhancing the electrochemical doping efficiency in diketopyrrolopyrrole based polymer for organic electrochemical transistors |
| topic | Engineering::Electrical and electronic engineering Anion-Dependent Materials Doping Efficiency |
| url | https://hdl.handle.net/10356/154215 |
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