Thermal‐Triggered Sustainable Defect Passivation for Stable Inverted Perovskite Solar Cells
The defect is of great importance for perovskite solar cells (PSCs). During device aging, the already well‐passivated perovskite can still generate new defects. Traditional passivating approaches are unable to well passivate these newly generated defects, thus affecting device performance. Herein, a thermal‐triggered sustainable defect passivation strategy is proposed by employing a heat‐induced molten passivator of perfluorobutylsulphonamide (PBSA). PBSA will change to liquid after heat treatment, flowing to the generation sites of new defects and passivate them, thus inducing degraded efficiency recover and enhancing device stability. Resulting PSCs with PBSA exhibit high efficiency of 24.34% with good stability, retaining >90% of initial efficiency after ultraviolet aging for 500 h.
Authors
- Qihao Weng (ORCID: https://orcid.org/0000-0002-2498-0934)
- Wen J. Li (ORCID: https://orcid.org/0000-0001-9616-6213)
- Zhengbo Cui
- Junfeng Fang (ORCID: https://orcid.org/0000-0003-2094-8678)
- Wenxiao Zhang (ORCID: https://orcid.org/0000-0001-7052-5011)
- Yunfei Li (ORCID: https://orcid.org/0000-0003-1641-0234)
- Xiaodong Li (ORCID: https://orcid.org/0000-0003-0184-008X)
- Jianhong Xu
- Ting Shu (ORCID: https://orcid.org/0000-0001-9513-3719)
- Yueying Mao
- Tengyi You
- Bo Feng (ORCID: https://orcid.org/0009-0003-1437-5946)
Institutions
- East China Normal University (CN)
Publication Details
- Journal
- Solar RRL
- Published
- 2024-12-20
- DOI
- https://doi.org/10.1002/solr.202400688
- Citations
- 1
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- Natural Science Foundation of Shanghai
- National Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities
- National Science Fund for Distinguished Young Scholars