Functionalized Phenanthrene Imide-Based Polymers for n-Type Organic Thin-Film Transistors
© 2024 Wiley‐VCH GmbH..
High-performing n-type polymers are crucial for the advance of organic electronics field, however strong electron-deficient building blocks with optimized physicochemical properties for constructing them are still limited. The imide-functionalized polycyclic aromatic hydrocarbons (PAHs) with extended π-conjugated framework, high electron deficiency and good solubility serve as promising candidates for developing high-performance n-type polymers. Among the PAHs, phenanthrene (PhA) features a well-delocalized aromatic π-system with multiple modifiable active sites . However, the PhA-based imides are seldom studied, mainly attributed to the synthetic challenge. Herein, we report two functionalized PhAs, CPOI and CPCNI, by simultaneously incorporating imide with carbonyl or dicyanomethylene onto PhA. Notably, the dicyanomethylene-modified CPCNI exhibits a well stabilized LUMO energy level (-3.84 eV), attributed to the synergetic inductive effect from imide and cyano groups. Subsequently, based on CPOI and CPCNI, two polymers PCPOI-Tz and PCPCNI-Tz were developed. Applied to organic thin-film transistors, owing to the strong electron-deficiency of CPCNI, polymer PCPCNI-Tz shows an improved electron mobility and largely decreased threshold voltage compared with PCPOI-Tz. This work affords two structurally novel electron-deficient building blocks and highlights the effectiveness of dual functionalization of PhAs with strong electron-withdrawing groups for devising n-type polymers.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:63 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 63(2024), 17 vom: 22. Apr., Seite e202319627 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Yang, Jie [VerfasserIn] |
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| Links: |
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| Themen: |
Electron-Deficient Building Blocks |
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| Anmerkungen: |
Date Revised 15.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202319627 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a High-performing n-type polymers are crucial for the advance of organic electronics field, however strong electron-deficient building blocks with optimized physicochemical properties for constructing them are still limited. The imide-functionalized polycyclic aromatic hydrocarbons (PAHs) with extended π-conjugated framework, high electron deficiency and good solubility serve as promising candidates for developing high-performance n-type polymers. Among the PAHs, phenanthrene (PhA) features a well-delocalized aromatic π-system with multiple modifiable active sites . However, the PhA-based imides are seldom studied, mainly attributed to the synthetic challenge. Herein, we report two functionalized PhAs, CPOI and CPCNI, by simultaneously incorporating imide with carbonyl or dicyanomethylene onto PhA. Notably, the dicyanomethylene-modified CPCNI exhibits a well stabilized LUMO energy level (-3.84 eV), attributed to the synergetic inductive effect from imide and cyano groups. Subsequently, based on CPOI and CPCNI, two polymers PCPOI-Tz and PCPCNI-Tz were developed. Applied to organic thin-film transistors, owing to the strong electron-deficiency of CPCNI, polymer PCPCNI-Tz shows an improved electron mobility and largely decreased threshold voltage compared with PCPOI-Tz. This work affords two structurally novel electron-deficient building blocks and highlights the effectiveness of dual functionalization of PhAs with strong electron-withdrawing groups for devising n-type polymers | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Electron-Deficient Building Blocks | |
| 650 | 4 | |a Imide-Functionalized Polymers | |
| 650 | 4 | |a Organic Thin-Film Transistors | |
| 650 | 4 | |a Polycyclic Aromatic Hydrocarbons | |
| 650 | 4 | |a n-Type Polymers | |
| 700 | 1 | |a Li, Jianfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiage |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Wanli |e verfasserin |4 aut | |
| 700 | 1 | |a Jeong, Sang Young |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Enmin |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Bin |e verfasserin |4 aut | |
| 700 | 1 | |a Woo, Han Young |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Zhicai |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Xugang |e verfasserin |4 aut | |
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