Tuning the Structural Isomers of Phenylenediammonium Cations to Afford Efficient and Stable Perovskite Solar Cells and Modules [* Cross-Reference *]

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Cheng Liu; Yi Yang; Kasparas Rakštys; Arup Mahata; Marius Franckevičius; Edoardo Mosconi; Raminta Skackauskaite; Bin Ding; Onovbaramwen Jennifer Usiobo; Jean‐Nicolas Audinot; Hiroyuki Kanda; Simonas Driukas; Gabrielė Kavaliauskaitė; Vidmantas Gulbinas; Marc Dessimoz; Vytautas Getautis; Filippo De Angelis; Yong Ding; Songyuan Dai; Paul J. Dyson; Mohammad Khaja Nazeeruddin, 2026, "Tuning the Structural Isomers of Phenylenediammonium Cations to Afford Efficient and Stable Perovskite Solar Cells and Modules [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.IBPTFS, LIST Open Repository, V1

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Description	Abstract Organic halide salt passivation is considered to be an essential strategy to reduce defects in state-of-the-art perovskite solar cells (PSCs). This strategy, however, suffers from the inevitable formation of in-plane favored two-dimensional (2D) perovskite layers with impaired charge transport, especially under thermal conditions, impeding photovoltaic performance and device scale-up. To overcome this limitation, we studied the energy barrier of 2D perovskite formation from ortho- , meta- and para- isomers of (phenylene)di(ethylammonium) iodide (PDEAI 2 ) that were designed for tailored defect passivation. Treatment with the most sterically hindered ortho -isomer not only prevents the formation of surficial 2D perovskite film, even at elevated temperatures, but also maximizes the passivation effect on both shallow- and deep-level defects. The ensuing PSCs achieve an efficiency of 23.9% with long-term operational stability (over 1000 hours). Importantly, a record efficiency of 21.4% for the perovskite module with an active area of 26 cm 2 was achieved. (2021-07-21) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.21203/rs.3.rs-711763/v1 for the original and latest version of the publication* (2026-07-01)
Subject	Engineering; Physics
Keyword	Passivation, Perovskite (structure), Halide, Materials science, Iodide, Energy conversion efficiency, Photovoltaic system, Salt (chemistry), Thermal stability, Optoelectronics, Steric effects, Chemical engineering, Nanotechnology, Inorganic chemistry, Chemistry, Layer (electronics), Physical chemistry, Organic chemistry, Electrical engineering
License/Data Use Agreement	CC BY 4.0


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Persistent Identifier	perma:LIST.IBPTFS
Publication Date	2026-07-06
Title	Tuning the Structural Isomers of Phenylenediammonium Cations to Afford Efficient and Stable Perovskite Solar Cells and Modules [* Cross-Reference *]
Other Identifier	https://doi.org/10.21203/rs.3.rs-711763/v1 OpenAlex ID: https://openalex.org/W4205587371
Author	Cheng Liu (North China Electric Power University) - ORCID: https://orcid.org/0000-0002-3509-951X Yi Yang (North China Electric Power University) - ORCID: https://orcid.org/0000-0002-7775-6856 Kasparas Rakštys (Kaunas University of Technology) - ORCID: https://orcid.org/0000-0001-8016-9567 Arup Mahata (Italian Institute of Technology) - ORCID: https://orcid.org/0000-0002-4995-3326 Marius Franckevičius (Center for Physical Sciences and Technology) - ORCID: https://orcid.org/0000-0001-8020-7201 Edoardo Mosconi - ORCID: https://orcid.org/0000-0001-5075-6664 Raminta Skackauskaite (Kaunas University of Technology) Bin Ding - ORCID: https://orcid.org/0000-0001-6798-0646 Onovbaramwen Jennifer Usiobo (Luxembourg Institute of Science and Technology) Jean‐Nicolas Audinot (Luxembourg Institute of Science and Technology) - ORCID: https://orcid.org/0000-0002-4966-7653 Hiroyuki Kanda - ORCID: https://orcid.org/0000-0002-0327-8775 Simonas Driukas Gabrielė Kavaliauskaitė - ORCID: https://orcid.org/0000-0002-9894-7029 Vidmantas Gulbinas (Center for Physical Sciences and Technology) - ORCID: https://orcid.org/0000-0002-9528-0230 Marc Dessimoz Vytautas Getautis (Kaunas University of Technology) - ORCID: https://orcid.org/0000-0001-7695-4677 Filippo De Angelis - ORCID: https://orcid.org/0000-0003-3833-1975 Yong Ding (North China Electric Power University) - ORCID: https://orcid.org/0000-0002-4921-0979 Songyuan Dai (Chinese Academy of Sciences, Hefei Institutes of Physical Science) - ORCID: https://orcid.org/0000-0001-5710-9208 Paul J. Dyson (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0003-3117-3249 Mohammad Khaja Nazeeruddin (École Polytechnique Fédérale de Lausanne) - ORCID: https://orcid.org/0000-0001-5955-4786
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Description	Abstract Organic halide salt passivation is considered to be an essential strategy to reduce defects in state-of-the-art perovskite solar cells (PSCs). This strategy, however, suffers from the inevitable formation of in-plane favored two-dimensional (2D) perovskite layers with impaired charge transport, especially under thermal conditions, impeding photovoltaic performance and device scale-up. To overcome this limitation, we studied the energy barrier of 2D perovskite formation from ortho- , meta- and para- isomers of (phenylene)di(ethylammonium) iodide (PDEAI 2 ) that were designed for tailored defect passivation. Treatment with the most sterically hindered ortho -isomer not only prevents the formation of surficial 2D perovskite film, even at elevated temperatures, but also maximizes the passivation effect on both shallow- and deep-level defects. The ensuing PSCs achieve an efficiency of 23.9% with long-term operational stability (over 1000 hours). Importantly, a record efficiency of 21.4% for the perovskite module with an active area of 26 cm 2 was achieved. (2021-07-21) *This entry has been automatically imported via OpenAlex by LIST harvest scripts. Please refer to https://doi.org/10.21203/rs.3.rs-711763/v1 for the original and latest version of the publication* (2026-07-01)
Subject	Engineering; Physics
Keyword	Passivation Perovskite (structure) Halide Materials science Iodide Energy conversion efficiency Photovoltaic system Salt (chemistry) Thermal stability Optoelectronics Steric effects Chemical engineering Nanotechnology Inorganic chemistry Chemistry Layer (electronics) Physical chemistry Organic chemistry Electrical engineering
Topic Classification	Perovskite Materials and Applications Conducting polymers and applications Organic Electronics and Photovoltaics
Deposit Date	2021-07-21
Data Type	Preprint
Data Source	Research Square

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