Universal Design and Efficient Synthesis for High Ambipolar Mobility Emissive Conjugated Polymers

Yihan Zhang; Chenhui Xu; Pu Wang; Can Gao; Wenhao Li; Zhenjie Ni; Yang Han; Yan Zhao; Yanhou Geng; Zhaohui Wang; Wenping Hu; Huanli Dong

doi:10.1002/anie.202319997

Universal Design and Efficient Synthesis for High Ambipolar Mobility Emissive Conjugated Polymers

Angew Chem Int Ed Engl. 2024 May 6;63(19):e202319997. doi: 10.1002/anie.202319997. Epub 2024 Apr 8.

Authors

Yihan Zhang^{1

2

3}, Chenhui Xu⁴, Pu Wang^{1

3}, Can Gao¹, Wenhao Li⁵, Zhenjie Ni³, Yang Han⁴, Yan Zhao⁵, Yanhou Geng⁴, Zhaohui Wang⁶, Wenping Hu^{4

7}, Huanli Dong¹

Affiliations

¹ Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
² 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.
³ Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049, China.
⁴ Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
⁵ Laboratory of Molecular Materials and Devices, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China.
⁶ Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China.
⁷ Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, 350207, China.

PMID: 38499464
DOI: 10.1002/anie.202319997

Abstract

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^-2 cm² V^-1 s^-1, and can be used in multifunctional optoelectronic devices. This work opens a new avenue for developing HAME-CPs by efficient synthesis and rational design.

Keywords: Conjugated polymer; High solid-state emission; High-ambipolar mobility; Microwave assisted C−H activation; Polymer light emitting transistor.

Abstract

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