Stabilization of highly efficient perovskite solar cells with a tailored supramolecular interface
The presence of defects at the interface between the perovskite film and the carrier transport layer poses significant challenges to the performance and stability of perovskite solar cells (PSCs). Addressing this issue, we introduce a dual host-guest (DHG) complexation strategy to modulate both the bulk and interfacial properties of FAPbI<sub>3</sub>-rich PSCs. Through NMR spectroscopy, a synergistic effect of the dual treatment is observed. Additionally, electro-optical characterizations demonstrate that the DHG strategy not only passivates defects but also enhances carrier extraction and transport. Remarkably, employing the DHG strategy yields PSCs with power conversion efficiencies (PCE) of 25.89% (certified at 25.53%). Furthermore, these DHG-modified PSCs exhibit enhanced operational stability, retaining over 96.6% of their initial PCE of 25.55% after 1050 hours of continuous operation under one-sun illumination, which was the highest initial value in the recently reported articles. This work establishes a promising pathway for stabilizing high-efficiency perovskite photovoltaics through supramolecular engineering, marking a significant advancement in the field.
Authors
- Michael A. Hope (ORCID: https://orcid.org/0000-0002-4742-9336)
- Jiashang Zhao
- Anurag Krishna (ORCID: https://orcid.org/0000-0001-7255-7412)
- Chenxu Zhao (ORCID: https://orcid.org/0009-0004-9128-5757)
- Jia Xu (ORCID: https://orcid.org/0000-0001-6991-9013)
- Thibaut Gallet (ORCID: https://orcid.org/0000-0001-8494-3206)
- Shaik M. Zakeeruddin (ORCID: https://orcid.org/0000-0003-0655-4744)
- Jianxi Yao (ORCID: https://orcid.org/0000-0002-5472-9337)
- Lyndon Emsley (ORCID: https://orcid.org/0000-0003-1360-2572)
- Masaud Almalki (ORCID: https://orcid.org/0000-0003-3238-8866)
- Tom J. Savenije (ORCID: https://orcid.org/0000-0003-1435-9885)
- Zhiwen Zhou (ORCID: https://orcid.org/0000-0003-1463-9617)
- Yingguo Yang (ORCID: https://orcid.org/0000-0002-1749-2799)
- Alex Redinger (ORCID: https://orcid.org/0000-0002-2958-3102)
- Felix T. Eickemeyer (ORCID: https://orcid.org/0000-0003-0855-9944)
- Aditya Mishra (ORCID: https://orcid.org/0000-0001-8515-5578)
- Hong Zhang (ORCID: https://orcid.org/0000-0002-5321-0680)
- Michaël Grätzel (ORCID: https://orcid.org/0000-0002-0068-0195)
Institutions
- King Abdulaziz City for Science and Technology (SA)
- North China Electric Power University (CN)
- Chinese University of Hong Kong (HK)
- University of Luxembourg (LU)
- Fudan University (CN)
- Shanghai Fudan Microelectronics (China) (CN)
- École Polytechnique Fédérale de Lausanne (CH)
- Delft University of Technology (NL)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-08-20
- DOI
- https://doi.org/10.1038/s41467-024-51550-z
- Citations
- 39
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 8.14
Funders
- Graphene Flagship
- European Commission
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- National Natural Science Foundation of China
- China Scholarship Council
- King Abdulaziz City for Science and Technology
- Horizon 2020 Framework Programme
- Fundamental Research Funds for the Central Universities