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Ma S, Wang J, Feng K, Zhang H, Wu Z, Wang Y, Liu B, Li Y, An M, Gonzalez-Nuñez R, Ponce Ortiz R, Woo HY, Guo X. n-Type Polymer Semiconductors Based on Dithienylpyrazinediimide. ACS Appl Mater Interfaces 2023; 15:1639-1651. [PMID: 36571844 DOI: 10.1021/acsami.2c17969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The development of n-type organic semiconductors critically relies on the design and synthesis of highly electron-deficient building blocks with good solubility and small steric hindrance. We report here a strongly electron-deficient dithienylpyrazinediimide (TPDI) and its n-type semiconducting polymers. The pyrazine substitution leads to the resulting polymers with much lower-lying lowest unoccupied molecular orbital (LUMO) levels and improved backbone planarity compared to the reported dithienylbenzodiimide (TBDI)- and fluorinated dithienylbenzodiimide (TFBDI)-based polymer analogues, thus yielding n-type transport character with an electron mobility up to 0.44 cm2 V-1 s-1 in organic thin-film transistors. These results demonstrate that dithienylpyrazinediimide is a highly promising electron-deficient building block for constructing high-performance n-type polymers and the incorporation of pyrazine into imide-functionalized (hetero)arenes is an effective strategy to develop n-type polymers with deep-lying frontier molecular orbital (FMO) levels for organic optoelectronic devices.
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Affiliation(s)
- Suxiang Ma
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Junwei Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Kui Feng
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Hao Zhang
- Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Ziang Wu
- Department of Chemistry, Korea University, Seoul 136-713, South Korea
| | - Yimei Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Bin Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Yongchun Li
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Mingwei An
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
| | - Raúl Gonzalez-Nuñez
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, Málaga 29071, Spain
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, Málaga 29071, Spain
| | - Han Young Woo
- Department of Chemistry, Korea University, Seoul 136-713, South Korea
| | - Xugang Guo
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, Guangdong, China
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