Scalable preparation of perovskite films with homogeneous structure via immobilizing strategy for high-performance solar modules
Scalable fabrication of perovskite films with homogeneous structure remains a critical challenge in bridging power conversion efficiency gap between solar modules and laboratory-scale cells. To address this, we propose a slot-die coating strategy with pyrrodiazole additives in the perovskite precursor solution to simultaneously immobilize lead iodide and formamidinium iodide. This approach enhances wet film stability by suppressing colloidal aggregation, retards the crystal growth process, and ensures a consistent growth rate across the films. These effects promote the formation of large, monolithic grains, enabling large-area perovskite films with homogeneous structure, excellent uniformity, and low defect density under ambient conditions. Using this strategy, we achieved 10 cm × 10 cm inverted perovskite solar modules with a certified efficiency of 20.3%, along with good working stability and excellent application demonstration, showcasing its great potential for industrialization.
Authors
- Hualin Zheng (ORCID: https://orcid.org/0000-0003-1567-9987)
- Thierry Pauporté (ORCID: https://orcid.org/0000-0001-5906-8075)
- Shihao Yuan (ORCID: https://orcid.org/0009-0002-3441-4925)
- Daming Zheng (ORCID: https://orcid.org/0000-0002-6939-5675)
- Xiaobo Li (ORCID: https://orcid.org/0009-0006-3001-8166)
- Peng Zhang (ORCID: https://orcid.org/0000-0002-1792-3130)
- Yafei Wang (ORCID: https://orcid.org/0000-0001-6984-6918)
- Ting Zhang (ORCID: https://orcid.org/0000-0001-6385-6963)
- Lei Wang (ORCID: https://orcid.org/0000-0002-8670-9410)
- Qian Feng (ORCID: https://orcid.org/0000-0002-5152-8599)
- Shibin Li (ORCID: https://orcid.org/0000-0002-0591-5491)
- Zecheng Diao
Institutions
- Centre National de la Recherche Scientifique (FR)
- Chimie ParisTech - PSL (FR)
- University of Electronic Science and Technology of China (CN)
- Université Paris Sciences et Lettres (FR)
- Guangzhou University (CN)
- Institut de Recherche de Chimie Paris (FR)
- China Jiliang University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-02-28
- DOI
- https://doi.org/10.1038/s41467-025-57303-w
- Citations
- 42
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 30.68
Funders
- National Natural Science Foundation of China