Tuning structural isomers of phenylenediammonium to afford efficient and stable perovskite solar cells and modules

Cheng Liu, Yi Yang, Kasparas Rakstys (), Arup Mahata, Marius Franckevicius, Edoardo Mosconi, Raminta Skackauskaite, Bin Ding, Keith G. Brooks, Onovbaramwen Jennifer Usiobo, Jean-Nicolas Audinot, Hiroyuki Kanda, Simonas Driukas, Gabriele Kavaliauskaite, Vidmantas Gulbinas, Marc Dessimoz, Vytautas Getautis, Filippo Angelis, Yong Ding (), Songyuan Dai (), Paul J. Dyson () and Mohammad Khaja Nazeeruddin ()
Additional contact information
Cheng Liu: North China Electric Power University
Yi Yang: North China Electric Power University
Kasparas Rakstys: Kaunas University of Technology
Arup Mahata: Istituto Italiano di Tecnologia
Marius Franckevicius: Center of Physical Sciences and Technology
Edoardo Mosconi: Istituto CNR di Scienze e Tecnologie Chimiche “Giulio Natta” (CNR-SCITEC)
Raminta Skackauskaite: Kaunas University of Technology
Bin Ding: EPFL VALAIS
Keith G. Brooks: EPFL VALAIS
Onovbaramwen Jennifer Usiobo: Luxembourg Institute of Science and Technology (LIST)
Jean-Nicolas Audinot: Luxembourg Institute of Science and Technology (LIST)
Hiroyuki Kanda: EPFL VALAIS
Simonas Driukas: Center of Physical Sciences and Technology
Gabriele Kavaliauskaite: Center of Physical Sciences and Technology
Vidmantas Gulbinas: Center of Physical Sciences and Technology
Marc Dessimoz: EPFL VALAIS
Vytautas Getautis: Kaunas University of Technology
Filippo Angelis: Istituto Italiano di Tecnologia
Yong Ding: North China Electric Power University
Songyuan Dai: North China Electric Power University
Paul J. Dyson: EPFL VALAIS
Mohammad Khaja Nazeeruddin: EPFL VALAIS

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: 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 (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.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26754-2

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DOI: 10.1038/s41467-021-26754-2

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