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Efficient n‐type organic electrochemical transistors and field‐effect transistors based on PNDI‐copolymers bearing fluorinated selenophene‐vinylene‐selenophenes
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Kim, Jongho, Ren, Xinglong, Zhang, Youcheng, Fazzi, Daniele, Manikandan, Suraj, Andreasen, Jens Wenzel, Sun, Xiuming, Ursel, Sarah, Un, Hio‐Ieng, Peralta, Sébastien, Xiao, Mingfei, Town, James S., Marathianos, Arkadios, Roesner, Stefan, Bui, Thanh‐Tuan, Ludwigs, Sabine, Sirringhaus, Henning and Wang, Suhao (2023) Efficient n‐type organic electrochemical transistors and field‐effect transistors based on PNDI‐copolymers bearing fluorinated selenophene‐vinylene‐selenophenes. Advanced Science, 10 (29). 2303837. doi:10.1002/advs.202303837 ISSN 2198-3844.
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Official URL: http://dx.doi.org/10.1002/advs.202303837
Abstract
n-Type organic electrochemical transistors (OECTs) and organic field-effect transistors (OFETs) are less developed than their p-type counterparts. Herein, polynaphthalenediimide (PNDI)-based copolymers bearing novel fluorinated selenophene-vinylene-selenophene (FSVS) units as efficient materials for both n-type OECTs and n-type OFETs is reported. The PNDI polymers with oligo(ethylene glycol) (EG7) side chains P(NDIEG7-FSVS), afford a high µC* of > 0.2 F cm–1V–1s–1, outperforming the benchmark n-type Pg4NDI-T2 and Pg4NDI-gT2 by two orders of magnitude. The deep-lying LUMO of −4.63 eV endows P(NDIEG7-FSVS) with an ultra-low threshold voltage of 0.16 V. Moreover, the conjugated polymer with octyldodecyl (OD) side chains P(NDIOD-FSVS) exhibits a surprisingly low energetic disorder with an Urbach energy of 36 meV and an ultra-low activation energy of 39 meV, resulting in high electron mobility of up to 0.32 cm2 V−1 s−1 in n-type OFETs. These results demonstrate the great potential for simultaneously achieving a lower LUMO and a tighter intermolecular packing for the next-generation efficient n-type organic electronics.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | Q Science > QD Chemistry T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Organic electrochemical transistors, Field-effect transistors, Copolymers | |||||||||||||||
Journal or Publication Title: | Advanced Science | |||||||||||||||
Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | |||||||||||||||
ISSN: | 2198-3844 | |||||||||||||||
Official Date: | 17 October 2023 | |||||||||||||||
Dates: |
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Volume: | 10 | |||||||||||||||
Number: | 29 | |||||||||||||||
Article Number: | 2303837 | |||||||||||||||
DOI: | 10.1002/advs.202303837 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||
Date of first compliant deposit: | 15 September 2023 | |||||||||||||||
Date of first compliant Open Access: | 15 September 2023 | |||||||||||||||
RIOXX Funder/Project Grant: |
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