Tuning structural isomers of phenylenediammonium to afford efficient and stable perovskite solar cells and modules [* Cross-Reference *]

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Liu, Cheng; Yang, Yi; Rakstys, Kasparas; Mahata, Arup; Franckevicius, Marius; Mosconi, Edoardo; Skackauskaite, Raminta; Ding, Bin; Brooks, Keith G.; Usiobo, Onovbaramwen Jennifer; Audinot, Jean Nicolas; Kanda, Hiroyuki; Driukas, Simonas; Kavaliauskaite, Gabriele; Gulbinas, Vidmantas; Dessimoz, Marc; Getautis, Vytautas; De Angelis, Filippo; Ding, Yong; Dai, Songyuan; Dyson, Paul J.; Nazeeruddin, Mohammad Khaja, 2026, "Tuning structural isomers of phenylenediammonium to afford efficient and stable perovskite solar cells and modules [* Cross-Reference *]", https://lore.list.lu/citation?persistentId=perma:LIST.IL4KDB, LIST Open Repository, V1
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Description
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 (PDEAI2) 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 h). Importantly, a record efficiency of 21.4% for the perovskite module with an active area of 26 cm2 was achieved. (2021-12-01)
***This entry has been automatically imported via Infodoc(ASO) CSV by LIST harvest scripts. Please refer to https://doi.org/10.1038/s41467-021-26754-2 for the original and latest version of the dataset and data downloads*** (2026-06-12)
Subject Physics
Keyword Organic halide salt, perovskite solar cells, halide salt passivation, Organic halide, solar cells
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