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20251007232828.0 |
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251007s2025 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202508541
|2 doi
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|a pubmed25n1592.xml
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|a (DE-627)NLM393712249
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|a (NLM)41055297
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Liu, Guocai
|e verfasserin
|4 aut
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|a High Iontronic Performance in Organic Electrochemical Transistors Enabled by Intramolecular Noncovalent Interactions
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|c 2025
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 07.10.2025
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2025 Wiley‐VCH GmbH.
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|a Organic electrochemical transistors (OECTs) show great potential in bioelectronics due to their iontronic coupling, low driving voltages (<1 V), and biocompatibility. Nevertheless, their low iontronic performance, particularly in terms of transconductance (gm), limits their ability to acquire high-precision biosignals. To address this issue, a series of poly(bithiophene)s (opg2T-O, opg2T-S, and opg2T-Se) bearing 4,4'-position glycol side chains are synthesized. Upon varying furan, thiophene, and selenophene comonomers, the intramolecular noncovalent interactions are systematically tuned. Comprehensive theoretical analyses reveal that opg2T-Se demonstrates stronger intramolecular Se···O noncovalent interactions than the S···O interactions in opg2T-S and opg2T-O, affording a more planar and rigid molecular configuration in opg2T-Se. Meanwhile, opg2T-Se exhibits closer π-π stacking and lamellar-packing and prefers an edge-on orientation. Consequently, a record-high geometry-normalized transconductance (gm,n) of 415 S cm-1, along with remarkable hole mobility (µ = 2.99 cm2 V-1 s-1) and volumetric capacitance (C* = 423.3 F cm-3) are achieved in opg2T-Se based OECTs. Importantly, the opg2T-Se-based devices exhibits much higher signal fidelity in in-vitro human electrocardiogram (ECG) than the other two devices. This study highlights the importance of intramolecular noncovalent interaction in the channel layer materials for achieving high-performance OECTs
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|a Journal Article
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|a iontronic performance
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|a noncovalent conformational locks
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|a organic electrochemical transistor
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| 650 |
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|a polymer material
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| 650 |
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4 |
|a transconductance
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| 700 |
1 |
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|a Zhang, Meng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lv, Jikai
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ma, Bowei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gu, Xiaobin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Yunlong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Yunqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Hui
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2025) vom: 07. Okt., Seite e08541
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g year:2025
|g day:07
|g month:10
|g pages:e08541
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|u http://dx.doi.org/10.1002/adma.202508541
|3 Volltext
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