Reducing the MAPbI3 microstrain by fast crystallization
<h2>Summary</h2> Control over perovskite crystal growth, resulting in thin film morphology, has been at the very foundation of the evolution of perovskite photovoltaics (PVs). Methylammonium lead triiodide (MAPbI<sub>3</sub>) perovskite has been the workhorse material for this class of semiconductors, offering good efficiency with a relatively simple composition, which attracts industrial scale production. Despite that, instability has hampered their further exploitation. In this work, we explored the effect of different types and timing of the antisolvents on MAPbI<sub>3</sub> perovskite crystallization. This approach enabled control of the crystalline microstrain while reducing unwanted trap density. This effect impacted device performances, enabling the achievement of MAPbI<sub>3</sub> solar cell with power conversion efficiency (PCE) approaching 22%. Importantly, we demonstrated that <i>an efficient</i> <i>MAPbI</i><sub>3</sub> <i>perovskite solar cell is also a stable one</i>. Our solar cells showed an efficiency loss of only 10% after 900 h at 85°C, putting MA-based PSCs back among promising PV technologies.
Authors
- Valentina Larini
- Beatriz Martín‐García (ORCID: https://orcid.org/0000-0001-7065-856X)
- Francesco Toniolo
- Matteo Degani (ORCID: https://orcid.org/0000-0001-7422-331X)
- Sergio Marras (ORCID: https://orcid.org/0000-0002-6968-7491)
- Bruno Ehrler (ORCID: https://orcid.org/0000-0002-5307-3241)
- Giulia Grancini (ORCID: https://orcid.org/0000-0001-8704-4222)
- Silvia Cavalli (ORCID: https://orcid.org/0000-0002-8435-1785)
- Fabiola Faini (ORCID: https://orcid.org/0000-0002-5653-6256)
- Luis E. Hueso (ORCID: https://orcid.org/0000-0002-7918-8047)
- Giovanni Pica (ORCID: https://orcid.org/0000-0003-1024-0342)
- M. Schmidt (ORCID: https://orcid.org/0000-0003-3092-6149)
- Riccardo Pallotta (ORCID: https://orcid.org/0009-0007-6033-8280)
- Samuele Mattioni
Institutions
- Ikerbasque (ES)
- University of the Basque Country (ES)
- University of Pavia (IT)
- Institute for Atomic and Molecular Physics (NL)
- Italian Institute of Technology (IT)
- CIC nanoGUNE (ES)
Publication Details
- Journal
- Joule
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1016/j.joule.2025.101964
- Citations
- 12
- Primary Topic
- Perovskite Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 8.77
Funders
- Dipartimenti di Eccellenza
- European Commission
- Fondazione Cariplo
- Eusko Jaurlaritza
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Università degli Studi di Pavia
- Regione Lombardia
- HORIZON EUROPE Framework Programme
- European Regional Development Fund
- Agencia Estatal de Investigación