TY  - JOUR
AU  - Maschwitz, Timo
AU  - Merten, Lena
AU  - Ünlü, Feray
AU  - Majewski, Martin
AU  - Haddadi Barzoki, Fatemeh
AU  - Wu, Zijin
AU  - Öz, Seren Dilara
AU  - Kreusel, Cedric
AU  - Theisen, Manuel
AU  - Wang, Pang
AU  - Schiffer, Maximilian
AU  - Boccarella, Gianluca
AU  - Marioth, Gregor
AU  - Weidner, Henrik
AU  - Schultheis, Sarah
AU  - Schieferstein, Tim
AU  - Gidaszewski, Dawid
AU  - Julliev, Zavkiddin
AU  - Kneschaurek, Ekaterina
AU  - Munteanu, Valentin
AU  - Zaluzhnyy, Ivan
AU  - Bertram, Florian
AU  - Jaffrès, Anaël
AU  - He, Junjie
AU  - Ashurov, Nigmat
AU  - Stolterfoht, Martin
AU  - Wolff, Christian M.
AU  - Unger, Eva
AU  - Olthof, Selina
AU  - Brocks, Geert
AU  - Tao, Shuxia
AU  - Grüninger, Helen
AU  - Ronsin, Olivier J. J.
AU  - Harting, Jens
AU  - Kotthaus, Andreas F.
AU  - Kirsch, Stefan F.
AU  - Mathur, Sanjay
AU  - Hinderhofer, Alexander
AU  - Schreiber, Frank
AU  - Riedl, Thomas
AU  - Brinkmann, Kai Oliver
TI  - How crystallization additives govern halide perovskite grain growth
JO  - Nature Communications
VL  - 16
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Springer Nature
M1  - PUBDB-2025-05146
SP  - 9894
PY  - 2025
N1  - cc-byproject hinzufügen: 01DP20008
AB  - The preparation of perovskite solar cells from the liquid phase is a cornerstone of their immense potential. However, a clear relationship between the precursor ink and the formation of the resulting perovskite is missing. Established theories, such as heterogeneous nucleation and lead complex colloid formation, often prove unreliable, which has led to an overreliance on heuristics. Most high-performing perovskites use additives to control crystallization. Their role during crystallization is, however, elusive. Here, we provide evidence that typical crystallization additives do not predominantly impact the nucleation phase but rather facilitate coarsening grain growth by increasing ion mobility across grain boundaries. Drawing from the insights of our broad, interdisciplinary study that combines ex and in situ characterization methods, devices, simulations, and density function theory calculation, we propose a concept that proves valid for various additives and perovskite formulations. Moreover, we establish a direct link between additive engineering and perovskite post-processing, offering a unified framework for advancing material design and process engineering.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1038/s41467-025-65484-7
UR  - https://bib-pubdb1.desy.de/record/641735
ER  -