期刊
ADVANCED MATERIALS
卷 34, 期 22, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202104325
关键词
acceptor modulation strategy; electron transport; electron-withdrawing group; mobility; organic field-effect transistors
类别
资金
- National Key R&D Program of China [2018YFA0703200]
- National Natural Science Foundation of China [61890940, 91833304, 91833306, 21922511, 21633012, 51873216]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB30000000]
- CAS Key Research Program of Frontier Sciences [QYZDYSSW-SLH029]
This review summarizes strategies to improve electron transport in semiconducting polymers through acceptor modulation, including using various acceptor types and introducing strong electron-withdrawing groups. The relationships between molecular structure, thin film morphology, processing conditions, and device performances are comprehensively discussed.
High-performance ambipolar and electronic type semiconducting polymers are essential for fabricating various organic optoelectronic devices and complementary circuits. This review summarizes the strategies of improving the electron transport of semiconducting polymers via acceptor modulation strategies, which include the use of single, dual, triple, multiple, and all acceptors as well as the fusion of multiple identical acceptors to obtain new heterocyclic acceptors. To further improve the electron transport of semiconducting polymers, the introduction of strong electron-withdrawing groups can enhance the electron-withdrawing ability of donors and acceptors, thereby facilitating electron injection and suppressing hole accumulation. In addition, the relationships between the molecular structure, frontier molecular orbital energy levels, thin film morphology, microstructure, processing conditions, and device performances are also comprehensively discussed. Finally, the challenges encountered in this research area are proposed and the future outlook is presented.
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