Crystallization Modulation of Wide-Bandgap Perovskites on Textured Silicon for Tandem Solar Cells
Despite the rapid progress of monolithic perovskite-silicon tandem solar cells on planar and nanotextured silicon subcells, achieving high-performance tandem devices directly adopting commercially compatible crystalline silicon cells remains difficult because of the hardly controllable fabrication of wide-bandgap perovskite films on top. Herein, we developed a facile crystallization modulation strategy for the vapor–solution hybrid two-step deposited wide-bandgap perovskites on fully textured crystalline silicon substrates. We comprehensively investigate the conversion process of thermally evaporated inorganic frameworks to the desired perovskite phase under different humid air conditions, and successfully disassemble the moisture- and thermal-induced complex effects on the crystallization and degradation of perovskite films. With a carefully modulated sequential annealing process in ambient, we obtain high-quality wide-bandgap perovskite films conformally grown on fully textured silicon substrates with reduced defects and homogeneous composition distribution, enabling the achievement of perovskite-silicon tandems with a certified PCE of 31.4%, which is among the best-performing tandem devices utilizing commercial silicon subcells.
Authors
- Zhiliang Kang (ORCID: https://orcid.org/0009-0002-9660-8186)
- Lei Hao (ORCID: https://orcid.org/0000-0003-4647-1601)
- Sai Bai (ORCID: https://orcid.org/0000-0001-7623-686X)
- Bo Yang (ORCID: https://orcid.org/0000-0003-0149-8683)
- Songlin Liu (ORCID: https://orcid.org/0009-0008-8127-8157)
- Guoqiang Xing (ORCID: https://orcid.org/0000-0003-1157-6323)
- Jiawei Zhang (ORCID: https://orcid.org/0000-0002-0010-9933)
- Ying Guo (ORCID: https://orcid.org/0009-0008-5487-6303)
- Yuchao Hu (ORCID: https://orcid.org/0000-0001-5465-2491)
- Chenglin Ma (ORCID: https://orcid.org/0009-0008-9571-6007)
- Lin Wu (ORCID: https://orcid.org/0000-0002-3646-796X)
- Jiawen Li (ORCID: https://orcid.org/0000-0003-3950-6212)
- Yifeng Zhang (ORCID: https://orcid.org/0000-0002-2832-2277)
- Wei Ran (ORCID: https://orcid.org/0000-0002-1236-9740)
- Long Wei (ORCID: https://orcid.org/0000-0002-7138-6532)
- Yanchao Xu (ORCID: https://orcid.org/0000-0002-4723-3915)
- Dexiang Zhang (ORCID: https://orcid.org/0000-0001-6218-7251)
- Chunyang Yin (ORCID: https://orcid.org/0000-0001-5220-9779)
- Lan Wang (ORCID: https://orcid.org/0000-0003-4032-0968)
- Quan Liu
- Zhenming Zhang (ORCID: https://orcid.org/0000-0002-5424-6351)
- Yu Chen (ORCID: https://orcid.org/0000-0003-3610-594X)
Institutions
- University of Electronic Science and Technology of China (CN)
- National Institute of Measurement and Testing Technology (CN)
- Ministry of Education (IR)
- National Engineering Research Center of Electromagnetic Radiation Control Materials (CN)
- Chengdu Tool Research Institute (China) (CN)
- State Key Laboratory of Electronic Thin Films and Integrated Devices
Publication Details
- Journal
- ACS Energy Letters
- Published
- 2025-08-11
- DOI
- https://doi.org/10.1021/acsenergylett.5c01244
- Citations
- 5
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 3.65
Funders
- National Natural Science Foundation of China
- Department of Science and Technology of Sichuan Province