Efficient Perovskite Solar Cells Made by Using a Vapor‐Assisted Hot Crystallization Method in Air
Perovskite solar cells (PSCs) achieve remarkable progress in recent years. However, their commercialization remains hindered by conventional fabrication processes that require antisolvent and prolonged annealing, which compromises scalability and cost-effectiveness. In this study, a vapor-assisted hot crystallization method is proposed, in which a vapor atmosphere is applied during the crystallization process to improve quality of perovskite films. The crystallization and annealing process takes less than 3 min, which is much faster than the antisolvent spin-coating method. In addition, the method can be performed in ambient air without using antisolvent. Systematic characterization demonstrates that solvent vapor atmospheres enhance crystallinity, suppress defect formation, and promote denser growth at grain boundaries. Through synergistic modulation of vapor compositions, large-domain, uniform, and pinhole-free perovskite films are obtained. A power conversion efficiency (PCE) of 23.72% is achieved, which is the highest PCE for perovskite solar cells made by using hot-crystallization method.
Authors
- Ke Jin (ORCID: https://orcid.org/0000-0001-7697-0466)
- Chenyi Yi (ORCID: https://orcid.org/0000-0001-6383-7383)
- Zuo Xiao (ORCID: https://orcid.org/0000-0003-3705-7716)
- Liming Ding (ORCID: https://orcid.org/0000-0001-6437-9150)
- Chuantian Zuo (ORCID: https://orcid.org/0000-0003-4327-0855)
- Lixiu Zhang (ORCID: https://orcid.org/0009-0008-5573-5860)
- Keyou Yan (ORCID: https://orcid.org/0000-0003-4380-7325)
- Qinye Bao (ORCID: https://orcid.org/0000-0003-2122-4698)
- Di Wei (ORCID: https://orcid.org/0000-0003-2670-6362)
- Yong Ding (ORCID: https://orcid.org/0000-0002-4921-0979)
- Hua Dong (ORCID: https://orcid.org/0000-0001-9362-2236)
- Jingjing Chang (ORCID: https://orcid.org/0000-0003-3773-182X)
- Congcong Wu
- Lingjie Lv
Institutions
- Guangdong University of Technology (CN)
- Xidian University (CN)
- Hohai University (CN)
- Chinese Academy of Sciences (CN)
- Beijing Institute of Nanoenergy and Nanosystems (CN)
- National Center for Nanoscience and Technology (CN)
- University of Chinese Academy of Sciences (CN)
- East China Normal University (CN)
- Hubei University (CN)
- Xi'an Jiaotong University (CN)
- South China University of Technology (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Small
- Published
- 2025-08-04
- DOI
- https://doi.org/10.1002/smll.202506937
- Citations
- 3
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- Natural Science Foundation of Beijing Municipality
- National Key Research and Development Program of China