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Wu L, Li G, Prashanthan K, Musiienko A, Li J, Gries TW, Zhang H, Köbler H, Janasik P, Appiah ANS, Paramasivam G, Sun T, Li M, Marongiu D, Saba M, Abate A. Stabilization of Inorganic Perovskite Solar Cells with a 2D Dion-Jacobson Passivating Layer. Adv Mater 2023; 35:e2304150. [PMID: 37463023 DOI: 10.1002/adma.202304150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/13/2023] [Indexed: 09/21/2023]
Abstract
Inorganic metal halide perovskites such as CsPbI3 are promising for high-performance, reproducible, and robust solar cells. However, inorganic perovskites are sensitive to humidity, which causes the transformation from the black phase to the yellow δ, non-perovskite phase. Such phase instability has been a significant challenge to long-term operational stability. Here, a surface dimensionality reduction strategy is reported, using 2-(4-aminophenyl)ethylamine cation to construct a Dion-Jacobson 2D phase that covers the surface of the 3D inorganic perovskite structure. The Dion-Jacobson layer mainly grows at the grain boundaries of the perovskite, effectively passivating surface defects and providing favourable interfacial charge transfer. The resulting inorganic perovskite films exhibit excellent humidity resistance when submerged in an aqueous solution (isopropanol:water = 4:1 v/v) and exposed to a 50% humidity air atmosphere. The Dion-Jacobson 2D/3D inorganic perovskite solar cell (PSC) achieves a power conversion efficiency (PCE) of 19.5% with a Voc of 1.197 eV. It retains 83% of its initial PCE after 1260 h of maximum power point tracking under 1.2 sun illumination. The work demonstrates an effective way for stabilizing efficient inorganic perovskite solar cells.
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Affiliation(s)
- Luyan Wu
- Dipartimento di Fisica, Università degli Studi di Cagliari, Monserrato (CA), I-09042, Italy
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Guixiang Li
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
- Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
| | - Karunanantharajah Prashanthan
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Physics, University of Jaffna, Jaffna, 40000, Sri Lanka
| | - Artem Musiienko
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Jinzhao Li
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Thomas W Gries
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Hao Zhang
- Laboratoire Ondes et Matière d'Aquitaine, Université de Bordeaux & CNRS, Talence, 33405, France
| | - Hans Köbler
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Patryk Janasik
- Department of Chemistry, Silesian University of Technology, Strzody 9, Gliwice, 44-100, Poland
| | - Augustine N S Appiah
- Department of Chemistry, Silesian University of Technology, Strzody 9, Gliwice, 44-100, Poland
| | - Gopinath Paramasivam
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Tianxiao Sun
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Meng Li
- Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, P. R. China
| | - Daniela Marongiu
- Dipartimento di Fisica, Università degli Studi di Cagliari, Monserrato (CA), I-09042, Italy
| | - Michele Saba
- Dipartimento di Fisica, Università degli Studi di Cagliari, Monserrato (CA), I-09042, Italy
| | - Antonio Abate
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
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