Zwitterionic side chain-modified conjugated polymers with greatly enhanced ambipolar charge-transport mobilities

Li-Na Liu; Maria Khlil; Jia Li; Zi-Wen Xu; Guanghui Xie; Jingjing Li; Xike Gao; Hongxiang Li; Jianhua Yao; Wei-Shi Li

doi:10.1039/d1cc04617a

Zwitterionic side chain-modified conjugated polymers with greatly enhanced ambipolar charge-transport mobilities

Chem Commun (Camb). 2021 Oct 26;57(85):11181-11184. doi: 10.1039/d1cc04617a.

Authors

Li-Na Liu^{1

2}, Maria Khlil¹, Jia Li³, Zi-Wen Xu¹, Guanghui Xie², Jingjing Li², Xike Gao¹, Hongxiang Li¹, Jianhua Yao^{2

3}, Wei-Shi Li^{1

2}

Affiliations

¹ Key Laboratory of Synthetic and Self-assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China. [email protected].
² Engineering Research Center of Zhengzhou for High Performance Organic Functional Materials, Zhengzhou Institute of Technology, 6 Yingcai Street, Huiji District, Zhengzhou, Henan 450044, P. R. China. [email protected].
³ CAS Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.

PMID: 34618880
DOI: 10.1039/d1cc04617a

Abstract

A small amount of the 3-(hexyldimethylammonio)propane-1-sulfonate zwitterionic side chain was integrated into a diketopyrrolopyrrole ambipolar polymer to modulate its field-effect carrier-transport characteristics. It was found that such a modification can strengthen the interchain interaction, promote crystallization, and thus improve the hole and electron mobilities by 3.9- and 8.2-fold, respectively.