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Development and application of blade-coating technique in organic solar cells

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Abstract

Due to the characteristics of lower material waste, higher crystallinity, roll-to-roll compatibility, and high-throughput continuous processing, blade-coating has been widely applied in the preparation of large-area organic solar cells. In this paper, the technique of blade-coating is introduced, including the effects of blading speed, substrate temperature, and other technological innovations during the process of blade-coating. Besides, the recent progress of blade-coating in organic solar cells is summarized and the active layer prepared by a blade-coating method is introduced in detail, including materials, processing methods, solvents, and additives. The interface layer and electrodes prepared by the blade-coating method are also discussed. Finally, some perspectives on the blade-coating method are proposed. In the foreseeable future, blade-coating will become the core of batch production of large-area organic solar cells, so as to make organic solar cells more competitive.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 21922505 and 52273245) and the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDB36000000).

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Authors and Affiliations

  1. China School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, 100083, China

    Xin Zhang, Siwen Zhang & Jiajie Kang

  2. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China

    Xin Zhang, Hong Zhang, Linge Xiao, Siwen Zhang & Huiqiong Zhou

  3. School of Chemistry, Beihang University, Beijing, 100191, China

    Shilin Li

  4. The Department of Thoraciccardio Surgery, PLA Rocket Force Characteristic Medical Center, Beijing, 100088, China

    Bing Han

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  1. Xin Zhang
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Correspondence to Hong Zhang, Bing Han, Jiajie Kang or Huiqiong Zhou.

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Zhang, X., Zhang, H., Li, S. et al. Development and application of blade-coating technique in organic solar cells. Nano Res. 16, 11571–11588 (2023). https://doi.org/10.1007/s12274-023-5425-9

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