Heat‐Triggered Dynamic Self‐Healing Framework for Variable‐Temperature Stable Perovskite Solar Cells
Metal halide perovskite solar cells (PSCs) are promising as the next-generation photovoltaic technology. However, the inferior stability under various temperatures remains a significant obstacle to commercialization. Here, a heat-triggered dynamic self-healing framework (HDSF) is implemented to repair defects at grain boundaries caused by thermal variability, enhancing PSCs' temperature stability. HDSF, distributed at the grain boundaries and surface of the perovskite film, stabilizes the perovskite lattice and releases the perovskite crystal stress through the dynamic exchange reaction of sulfide bonds. The resultant PSCs achieved a power-conversion efficiency (PCE) of 26.32% (certified 25.84%) with elevated temperature stability, retaining 88.7% of the initial PCE after 1000 h at 85 °C. In a variable temperature cycling test (between -40 and 80 °C), the HDSF-treated device retained 87.6% of its initial PCE at -40 °C and 92.6% at 80 °C after 160 thermal cycles. This heat-triggered dynamic self-healing strategy could significantly enhance the reliability of PSCs in application scenarios.
Authors
- Zhenhuang Su (ORCID: https://orcid.org/0000-0003-0026-2601)
- Feng Yang
- Antonio Abate (ORCID: https://orcid.org/0000-0002-3012-3541)
- Mahmoud H. Aldamasy (ORCID: https://orcid.org/0000-0003-3331-5570)
- Yonggang Yang (ORCID: https://orcid.org/0000-0003-0819-7648)
- Guixiang Li (ORCID: https://orcid.org/0000-0002-8730-0713)
- Meng Ke Li (ORCID: https://orcid.org/0000-0003-0360-7791)
- Luyao Wang (ORCID: https://orcid.org/0000-0003-0917-1749)
- Chaochao Qin (ORCID: https://orcid.org/0000-0002-3665-6111)
- Lin‐Long Deng (ORCID: https://orcid.org/0000-0002-8588-1825)
- Hairui Liu (ORCID: https://orcid.org/0000-0001-5923-1821)
- Yufang Liu (ORCID: https://orcid.org/0000-0003-1896-8864)
- Zuhong Zhang
- Ying Tang (ORCID: https://orcid.org/0000-0001-6628-8666)
Institutions
- Henan University (CN)
- Xiamen University (CN)
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- Henan Academy of Sciences (CN)
- Shanghai Advanced Research Institute (CN)
- Institute of Physics (CN)
- Henan Normal University (CN)
- Southeast University (CN)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-05-09
- DOI
- https://doi.org/10.1002/adma.202420378
- Citations
- 15
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 10.96
Funders
- Henan Normal University
- Salt Science Research Foundation
- National Natural Science Foundation of China
- Henan University
- Natural Science Foundation of Henan Province