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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202300145
|2 doi
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|a pubmed24n1178.xml
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|a (DE-627)NLM353557374
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|a (NLM)36849648
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Zhang, Weifeng
|e verfasserin
|4 aut
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|a Record-High Electron Mobility Exceeding 16 cm2 V- 1 s- 1 in Bisisoindigo-Based Polymer Semiconductor with a Fully Locked Conjugated Backbone
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|c 2023
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 16.05.2023
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|a Date Revised 16.05.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Polymer semiconductors with mobilities exceeding 10 cm2 V- 1 s- 1 , especially ambipolar and n-type polymer semiconductors, are still rare, although they are of great importance for fabricating polymer field-effect transistors (PFETs) toward commercial high-grade electronics. Herein, two novel donor-acceptor copolymers, PNFFN-DTE and PNFFN-FDTE, are designed and synthesized based on the electron-deficient bisisoindigo (NFFN) and electron-rich dithienylethylenes (DTE or FDTE). The copolymer PNFFN-DTE, containing NFFN and DTE, possesses a partially locked polymeric conjugated backbone, whereas PNFFN-FDTE, containing NFFN and FDTE, has a fully locked one. Fluorine atoms in FDTE not only induce the formation of additional CH∙∙∙F hydrogen bonds, but also lower frontier molecular orbitals for PNFFN-FDTE. Both PNFFN-DTE and PNFFN-FDTE form more ordered molecular packing in thin films prepared from a polymer solution in bicomponent solvent containing 1,2-dichlorobenzene (DCB) and 1-chloronaphthalene (with volume ratio of 99.2/0.8) than pure DCB. The two copolymers-based flexible PFETs exhibit ambipolar charge-transport properties. Notably, the bicomponent solvent-processed PNFFN-FDTE-based PFETs afford a high electron mobility of 16.67 cm2 V-1 s-1 , which is the highest electron-transport mobility for PFETs reported so far. The high electron mobility of PNFFN-FDTE is attributed to its fully locked conjugated backbone, dense molecular packing, and much matched LUMO energy level
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|a Journal Article
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|a D−A copolymers
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|a electron mobilities
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|a flexible field-effect transistors
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|a fully locked conjugated backbones
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|a nonbonding interactions
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1 |
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|a Shi, Keli
|e verfasserin
|4 aut
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|a Lai, Jing
|e verfasserin
|4 aut
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|a Zhou, Yankai
|e verfasserin
|4 aut
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|a Wei, Xuyang
|e verfasserin
|4 aut
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|a Che, Qian
|e verfasserin
|4 aut
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|a Wei, Jinbei
|e verfasserin
|4 aut
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|a Wang, Liping
|e verfasserin
|4 aut
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|a Yu, Gui
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 17 vom: 27. Apr., Seite e2300145
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:35
|g year:2023
|g number:17
|g day:27
|g month:04
|g pages:e2300145
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|u http://dx.doi.org/10.1002/adma.202300145
|3 Volltext
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