Functionalized Phenyl Methanaminium Salts Provide Highly Stable Perovskite Solar Cells
One of the leading approaches to enhancing the performance and stability of perovskite solar cells (PSCs) involves passivating the perovskite surface and grain boundaries with large ammonium salts. Here, we report the synthesis of furan-, thiophene-, and selenophene-functionalized phenyl methanaminium iodide salts (<b>FPMAI</b>, <b>TPMAI</b>, and <b>SPMAI</b>) and their application as passivating agents on 3D [(Cs<sub>0.04</sub>FA<sub>0.85</sub>MA<sub>0.11</sub>)Pb(I<sub>0.96</sub>Br<sub>0.01</sub>Cl<sub>0.03</sub>)<sub>3</sub>] perovskite. The <b>TPMAI</b>-passivated PSCs performed the best and achieved a power conversion efficiency (PCE) of 23.15% compared to the reference (without a passivating agent) at 20.91%. Efficiencies reduced to 98 and 54% of the initial value after 1250 h of continuous illumination for <b>TPMAI</b>-treated PSCs and the reference, respectively. DFT calculations revealed that <b>TPMAI</b> offers superior passivation, disfavoring iodine vacancy formation. Our findings highlight the potential of functionalized PMAI salts as passivation agents for improved efficiency and stability in PSCs.
Authors
- Esra Bag Celik
- Andreas Züttel (ORCID: https://orcid.org/0000-0002-5708-1855)
- Görkem Günbaş (ORCID: https://orcid.org/0000-0003-2279-3032)
- Selçuk Yerci (ORCID: https://orcid.org/0000-0003-0599-588X)
- Olga A. Syzgantseva (ORCID: https://orcid.org/0000-0002-0270-4621)
- Zeynep Gözükara Karabağ
- Mustafa Yaşa (ORCID: https://orcid.org/0000-0002-2531-4482)
- Paul J. Dyson (ORCID: https://orcid.org/0000-0003-3117-3249)
- Toppare Levent
- Liping Zhong (ORCID: https://orcid.org/0000-0002-2721-9585)
- Maria A. Syzgantseva (ORCID: https://orcid.org/0000-0001-8070-104X)
- Mohammad Khaja Nazeeruddin (ORCID: https://orcid.org/0000-0001-5955-4786)
- Xiaoxin Gao (ORCID: https://orcid.org/0009-0006-3865-620X)
- Ummugulsum Gunes (ORCID: https://orcid.org/0000-0002-8621-1647)
Institutions
- D. Mendeleyev University of Chemical Technology of Russia (RU)
- Lomonosov Moscow State University (RU)
- Middle East Technical University (TR)
- Moscow State University (TJ)
- PRG S&Tech (South Korea)
- École Polytechnique Fédérale de Lausanne (CH)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2025-03-17
- DOI
- https://doi.org/10.1021/acsami.5c00985
- Citations
- 5
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 3.65
Funders
- Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
- HORIZON EUROPE Framework Programme