Volume 135, Issue 22 e202302462
Forschungsartikel

Molecular Dipole Engineering of Carbonyl Additives for Efficient and Stable Perovskite Solar Cells

Xiaoqing Jiang

Corresponding Author

Xiaoqing Jiang

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

These authors contributed equally to this work.

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Bingqian Zhang

Bingqian Zhang

Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 China

College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

These authors contributed equally to this work.

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Guangyue Yang

Guangyue Yang

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

These authors contributed equally to this work.

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Zhongmin Zhou

Corresponding Author

Zhongmin Zhou

College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

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Xin Guo

Xin Guo

State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian, 116023 China

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Fengshan Zhang

Fengshan Zhang

Shan Dong Hua Tai Paper Industry Shareholding Co., Ltd., Dongying, 257335 China

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Shitao Yu

Shitao Yu

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

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Shiwei Liu

Corresponding Author

Shiwei Liu

College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China

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Shuping Pang

Corresponding Author

Shuping Pang

Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101 China

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First published: 27 March 2023
Citations: 3

Abstract

Carbonyl functional materials as additives are extensively applied to reduce the defects density of the perovskite film. However, there is still a lack of comprehensive understanding for the effect of carbonyl additives to improve device performance. In this work, we systematically study the effect of carbonyl additive molecules on the passivation of defects in perovskite films. After a comprehensive investigation, the results confirm the importance of molecular dipole in amplifying the passivation effect of additive molecules. The additive with strong molecular dipole possesses the advantages of enhancing the efficiency and stability of perovskite solar cells (PSCs). After optimization, the companion efficiency of PSCs is 23.20 %, and it can maintain long-term stability under harsh conditions. Additionally, a large-area solar cell module-modified DLBA was 20.18 % (14 cm2). This work provides an important reference for the selection and designing of efficient carbonyl additives.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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