Visible Light‐Triggered Self‐Welding Perovskite Solar Cells and Modules
Flexible perovskite solar cells (F-PSCs) are highly promising for both stationary and mobile applications because of their advantageous features, including mechanical flexibility, their lightweight and thin nature, and cost-effectiveness. However, a number of drawbacks, such as mechanical instability, make their practical application difficult. Here, self-welding dynamic diselenide that is triggered by visible light into the structure of F-PSCs to improve their long-term stability by repairing cracks and defects in the absorber layer is incorporated. The diselenide confers the flexibility and self-welding properties to the Cs<sub>0.05</sub>MA<sub>0.05</sub>FA<sub>0.9</sub>PbI<sub>3</sub> perovskite layer, enabling optimized F-PSC devices to achieve a power conversion efficiency of 24.85% while retaining ca. 92% of their initial efficiency after undergoing 15 000 bending cycles at a curvature radius of 3 mm. The corresponding flexible large-scale module with an active area of 15.82 cm<sup>2</sup> achieved a record PCE of 21.65%.
Authors
- Yan Shen (ORCID: https://orcid.org/0000-0002-8045-6926)
- Bin Ding (ORCID: https://orcid.org/0000-0003-1499-2154)
- Xiongjie Li (ORCID: https://orcid.org/0000-0003-3193-8643)
- Mingkui Wang (ORCID: https://orcid.org/0000-0002-4516-2500)
- Paul J. Dyson (ORCID: https://orcid.org/0000-0003-3117-3249)
- Zhirong Liu (ORCID: https://orcid.org/0000-0001-5070-8048)
- Yong Ding (ORCID: https://orcid.org/0000-0002-4921-0979)
- Mohammad Khaja Nazeeruddin (ORCID: https://orcid.org/0000-0001-5955-4786)
- Hongliang Dong (ORCID: https://orcid.org/0000-0002-6820-9105)
- Zhiguo Zhang (ORCID: https://orcid.org/0000-0001-7825-4877)
- Junyi Huang (ORCID: https://orcid.org/0009-0002-8240-422X)
- Haixuan Yu (ORCID: https://orcid.org/0000-0001-5382-5792)
- Letian Dai (ORCID: https://orcid.org/0000-0002-4518-2368)
Institutions
- North China Electric Power University (CN)
- Wuhan National Laboratory for Optoelectronics (CN)
- Center for High Pressure Science and Technology Advanced Research (CN)
- Huazhong University of Science and Technology (CN)
- École Polytechnique Fédérale de Lausanne (CH)
Publication Details
- Journal
- Advanced Materials
- Published
- 2024-11-20
- DOI
- https://doi.org/10.1002/adma.202410338
- Citations
- 26
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 5.43
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- National Key Research and Development Program of China