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Printable and stable all-polymer solar cells based on non-conjugated polymer acceptors with excellent mechanical robustness

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Abstract

All-polymer solar cells (all-PSCs) trigger enormous commercial applications, and great progress has been made in recent years. However, from small-area devices to large-area modules, the poor adaption of the materials for printing methods and the large efficiency loss are still great challenges. Herein, three novel non-conjugated polymer acceptors (PTH-Y, PTClm-Y and PTClo-Y) are developed for all-PSCs. It can be found that non-conjugated polymer acceptors can effectively minimize the technique and efficiency gaps between small-area spin-coating and large-area blade-printing method, which can facilitate the preparation of large-area flexible device. By directly inheriting the spin-coating condition, the blade-coating processed device based on PTClo-Y achieves an impressive power conversion efficiency (PCE) of 12.42%, comparable to the spin-coating processed one (12.74%). Such a non-conjugated polymer system also can well tolerate large-scale preparation and flexible substrate. Notable PCE of 11.94% for large-area rigid device and 11.56% for large-area flexible device are obtained, which is the highest value for large-area flexible all-PSCs fabricated by blade-coating. In addition, the non-conjugated PTClo-Y-based devices show excellent thermal stability and mechanical robustness. These results demonstrate that the non-conjugated polymer acceptors are potential candidates for the fabrication of highly-efficient, large-area and robust flexible all-PSCs by printing methods.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (51673092, 51973087, 21762029, 51833004, 51425304).

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  1. These authors contributed equally to this work.

Authors and Affiliations

  1. College of Chemistry/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, Nanchang, 330031, China

    Dong Chen, Siqi Liu, Xiaotian Hu, Feiyan Wu, Jiabin Liu, Lie Chen & Yiwang Chen

  2. Institute of Advanced Scientific Research (iASR), Key Laboratory of Functional Organic Small Molecules for Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China

    Yiwang Chen

  3. Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China

    Kangkang Zhou & Long Ye

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  1. Dong Chen
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  2. Siqi Liu
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  3. Xiaotian Hu
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  4. Feiyan Wu
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  7. Long Ye
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  8. Lie Chen
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Correspondence to Lie Chen or Yiwang Chen.

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Supporting information The supporting information is available online at http://chem.scichina.com and http://link.springer.com/journal/11426. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.

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11426_2021_1094_MOESM1_ESM.pdf

Printable and Stable All-Polymer Solar Cells Based on Non-Conjugated Polymer Acceptors with Excellent Mechanical Robustness

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Chen, D., Liu, S., Hu, X. et al. Printable and stable all-polymer solar cells based on non-conjugated polymer acceptors with excellent mechanical robustness. Sci. China Chem. 65, 182–189 (2022). https://doi.org/10.1007/s11426-021-1094-y

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  • DOI: https://doi.org/10.1007/s11426-021-1094-y

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