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Review Article

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

Xin Zhang1,2Hong Zhang2( )Shilin Li3Linge Xiao2Siwen Zhang1,2Bing Han4( )Jiajie Kang1( )Huiqiong Zhou2( )
China School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
School of Chemistry, Beihang University, Beijing 100191, China
The Department of Thoraciccardio Surgery, PLA Rocket Force Characteristic Medical Center, Beijing 100088, China
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Graphical Abstract

In this review, we discuss the technique of blade-coating, including the influence of blading speed, substrate temperature, and other technological innovation. Besides, we also summarize the recent progress of blade-coating in organic solar cells form several aspects.


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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Nano Research
Pages 11571-11588
Cite this article:
Zhang X, Zhang H, Li S, et al. Development and application of blade-coating technique in organic solar cells. Nano Research, 2023, 16(9): 11571-11588.
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Received: 24 October 2022
Revised: 25 November 2022
Accepted: 18 December 2022
Published: 26 March 2023
© Tsinghua University Press 2023