Zhang Yihan, Xu Chenhui, Wang Pu, Gao Can, Li Wenhao, Ni Zhenjie, Han Yang, Zhao Yan, Geng Yanhou, Wang Zhaohui, Hu Wenping, Dong Huanli
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China.
Angew Chem Int Ed Engl. 2024 May 6;63(19):e202319997. doi: 10.1002/anie.202319997. Epub 2024 Apr 8.
High ambipolar mobility emissive conjugated polymers (HAME-CPs) are perfect candidates for organic optoelectronic devices, such as polymer light emitting transistors. However, due to intrinsic trade-off relationship between high ambipolar mobility and strong solid-state luminescence, the development of HAME-CPs suffers from high structural and synthetic complexity. Herein, a universal design principle and simple synthetic approach for HAME-CPs are developed. A series of simple non-fused polymers composed of charge transfer units, π bridges and emissive units are synthesized via a two-step microwave assisted C-H arylation and direct arylation polymerization protocol with high total yields up to 61 %. The synthetic protocol is verified valid among 7 monomers and 8 polymers. Most importantly, all 8 conjugated polymers have strong solid-state emission with high photoluminescence quantum yields up to 24 %. Furthermore, 4 polymers exhibit high ambipolar field effect mobility up to 10 cm V s, and can be used in multifunctional optoelectronic devices. This work opens a new avenue for developing HAME-CPs by efficient synthesis and rational design.
高双极性迁移率发光共轭聚合物（HAME-CPs）是有机光电器件（如聚合物发光晶体管）的理想候选材料。然而，由于高双极性迁移率与强固态发光之间存在内在的权衡关系，HAME-CPs的发展面临着高度的结构和合成复杂性。在此，我们开发了一种用于HAME-CPs的通用设计原则和简单合成方法。通过两步微波辅助C-H芳基化和直接芳基化聚合协议，合成了一系列由电荷转移单元、π桥和发光单元组成的简单非稠合聚合物，总产率高达61%。该合成方案在7种单体和8种聚合物中得到验证。最重要的是，所有8种共轭聚合物都具有很强的固态发射，光致发光量子产率高达24%。此外，4种聚合物表现出高达10 cm² V⁻¹ s⁻¹的高双极性场效应迁移率，可用于多功能光电器件。这项工作通过高效合成和合理设计为开发HAME-CPs开辟了一条新途径。
