Double-Cable Conjugated Polymers with Pendent Near-Infrared Electron Acceptors for Single-Component Organic Solar Cells

Shijie Liang; Baiqiao Liu; Safakath Karuthedath; Jing Wang; Yakun He; Wen Liang Tan; Hao Li; Yunhua Xu; Ning Li; Jianhui Hou; Zheng Tang; Frédéric Laquai; Christopher R McNeill; Christoph J Brabec; Weiwei Li

doi:10.1002/anie.202209316

Double-Cable Conjugated Polymers with Pendent Near-Infrared Electron Acceptors for Single-Component Organic Solar Cells

Angew Chem Int Ed Engl. 2022 Aug 26;61(35):e202209316. doi: 10.1002/anie.202209316. Epub 2022 Jul 18.

Authors

Shijie Liang¹, Baiqiao Liu^{1

2}, Safakath Karuthedath³, Jing Wang⁴, Yakun He⁵, Wen Liang Tan⁶, Hao Li⁷, Yunhua Xu², Ning Li^{5

8

9}, Jianhui Hou⁷, Zheng Tang⁴, Frédéric Laquai³, Christopher R McNeill⁶, Christoph J Brabec^{5

8}, Weiwei Li¹

Affiliations

¹ Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.
² Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing, 100044, P. R. China.
³ KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), Material Science and Engineering Program (MSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia.
⁴ Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, P. R. China.
⁵ Institute of Materials for Electronics and Energy Technology (i-MEET), Friedrich-Alexander-Universität Erlangen-Nürnberg, Martensstrasse 7, 91058, Erlangen, Germany.
⁶ Department of Materials Science and Engineering, Monash University, Wellington Road, Clayton, Victoria, 3800, Australia.
⁷ State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.
⁸ Helmholtz-Institute Erlangen-Nürnberg (HI ERN), Immerwahrstraße 2, 91058, Erlangen, Germany.
⁹ State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, School of Materials Science and Engineering, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, P. R. China.

PMID: 35785422
DOI: 10.1002/anie.202209316

Abstract

Double-cable conjugated polymers with near-infrared (NIR) electron acceptors are synthesized for use in single-component organic solar cells (SCOSCs). Through the development of a judicious synthetic pathway, the highly sensitive nature of the 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile (IC)-based electron acceptors in basic and protonic solvents is overcome. In addition, an asymmetric design motif is adopted to optimize the packing of donor and acceptor segments, enhancing charge separation efficiency. As such, the new double-cable polymers are successfully applied in SCOSCs, providing an efficiency of over 10 % with a broad photo response from 300 to 850 nm and exhibiting excellent thermal/light stability. These results demonstrate the powerful design of NIR-acceptor-based double-cable polymers and will enable SCOSCs to enter a new stage.

Keywords: Double-Cable Conjugated Polymers; Electron Acceptors; Near Infrared; Single Component; Solar Cells.

Abstract

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