Perfluoroarene‐Based Tin Halide Perovskite Photovoltaics
Hybrid halide perovskites are among the most promising candidates for next‐generation photovoltaics. The most investigated perovskite solar cells are lead based, which poses environmental concerns, making finding sustainable alternatives a pressing issue. Tin‐based halide perovskites are attracting interest as an alternative. However, their application in photovoltaics is hindered by the high concentration of defects and sensitivity to oxidation, compromising their performance and stability. Herein, perfluoroarene organic cations, namely 2‐(perfluorophenyl)methylammonium (F‐BNA) and 1,4‐(perfluorophenyl)dimethylammonium (F‐PDMA), are applied to form layered (2D) Ruddlesden–Popper and Dion–Jacobson tin‐based perovskites, respectively. Following a detailed structural and optoelectronic characterization, the perfluoroarenes are applied to formamidinium (FA)‐based FASnI 3 perovskite solar cells and an effective solvent is identified for their processing, 2‐pentanol. While F‐PDMA forms a 2D/3D heterostructure, F‐BNA remains assembled as a molecular interlayer, demonstrating higher photovoltaic performance with limited operational stability. This challenges the conventional role of mixed‐dimensional heterostructures in tin perovskite photovoltaics and opens new perspectives for advanced material design and device engineering.
Authors
- Frank Schreiber (ORCID: https://orcid.org/0000-0003-3659-6718)
- Ji‐Youn Seo (ORCID: https://orcid.org/0000-0002-0473-1279)
- Muhammad Okash Ur Rehman
- Antonio Abate (ORCID: https://orcid.org/0000-0002-3012-3541)
- Weifan Luo (ORCID: https://orcid.org/0009-0000-2485-7592)
- Ghewa AlSabeh (ORCID: https://orcid.org/0000-0003-2849-8827)
- Alexander Hinderhofer (ORCID: https://orcid.org/0000-0001-8152-6386)
- Debendra Prasad Panda (ORCID: https://orcid.org/0000-0003-1959-4868)
- Paul Zimmermann (ORCID: https://orcid.org/0009-0001-5100-1412)
- Jovana V. Milić (ORCID: https://orcid.org/0000-0002-9965-3460)
- Dmitry Chernyshov (ORCID: https://orcid.org/0000-0001-7738-9358)
- Mingwei Zhu (ORCID: https://orcid.org/0000-0002-1394-8664)
- Yana Vaynzof (ORCID: https://orcid.org/0000-0002-0783-0707)
- Fisun Koç (ORCID: https://orcid.org/0000-0002-5978-9232)
- Jong‐Min Kim (ORCID: https://orcid.org/0000-0001-9206-0382)
- Shivam Singh (ORCID: https://orcid.org/0000-0001-8631-6898)
- Gye Woon Choi (ORCID: https://orcid.org/0009-0004-6363-3398)
- Alejandra Maria Castro Chong
Institutions
- University of Fribourg (CH)
- Bielefeld University (DE)
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- European Synchrotron Radiation Facility (FR)
- Leibniz Institute for Solid State and Materials Research (DE)
- Adolphe Merkle Institute (CH)
- Pusan National University (KR)
- École Polytechnique Fédérale de Lausanne (CH)
- University of Naples Federico II (IT)
- Technische Universität Dresden (DE)
- University of Tübingen (DE)
Publication Details
- Journal
- Advanced Energy and Sustainability Research
- Published
- 2025-04-30
- DOI
- https://doi.org/10.1002/aesr.202500028
- Citations
- 3
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- National Science Foundation
- European Commission
- National Research Foundation
- European Synchrotron Radiation Facility
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Bundesministerium für Bildung und Forschung
- Ministry of Education
- National Research Foundation of Korea
- China Scholarship Council
- Université de Fribourg
- Leibniz-Gemeinschaft