Enhanced Interlayer Interactions in Tin Halide Perovskite Solar Cells with a Fluorinated Fullerene Derivative
Lead-free tin halide perovskite solar cells (TPSCs) have recently made significant progress in power conversion efficiency (PCE). However, the presence of mismatched energy levels and weak interlayer interactions between the electron transport materials (ETMs) and tin perovskites has limited the achievable PCE. Here, a new fluorinated fullerene derivative, C<sub>60</sub>-FTPA (F12), was designed and synthesized to construct a binary ETM with C<sub>60</sub>-ETPA (F6) reported in our group, resulting in a reduction in defects and improved molecular structure ordering. Furthermore, the binary ETM exhibited a stronger interaction with the tin perovskite and delivered a PCE up to 11.93%.
Authors
- Feng Hao
- Liming Ding (ORCID: https://orcid.org/0000-0001-6437-9150)
- Miao Zhang (ORCID: https://orcid.org/0000-0003-4961-2545)
- Jie Luo
- Cheng Wu (ORCID: https://orcid.org/0000-0001-8948-3616)
- Mingyu Yin
Institutions
- University of Electronic Science and Technology of China (CN)
- Center for NanoScience (DE)
- National Center for Nanoscience and Technology (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry Letters
- Published
- 2025-01-27
- DOI
- https://doi.org/10.1021/acs.jpclett.4c03710
- Citations
- 4
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.92
Funders
- National Key Research and Development Program of China
- National Ten Thousand Talent Program