TY  - JOUR
AU  - Qiu, Shudi
AU  - Majewski, Martin
AU  - Dong, Lirong
AU  - Distler, Andreas
AU  - Li, Chaohui
AU  - Forberich, Karen
AU  - Tian, Jingjing
AU  - Hemasiri, Naveen Harindu
AU  - Liu, Chao
AU  - Zhang, Jiyun
AU  - Yang, Fu
AU  - Le Corre, Vincent M.
AU  - Bibrack, Max
AU  - Basu, Robin
AU  - Barabash, Anastasia
AU  - Harting, Jens
AU  - Ronsin, Olivier J. J.
AU  - Du, Tian
AU  - Egelhaaf, Hans-Joachim
AU  - Brabec, Christoph J.
TI  - Over one-micron-thick void-free perovskite layers enable highly efficient and fully printed solar cells
JO  - Energy & environmental science
VL  - 18
IS  - 12
SN  - 1754-5692
CY  - Cambridge
PB  - RSC Publ.
M1  - FZJ-2026-00893
SP  - 5926 - 5939
PY  - 2025
AB  - Commercialization of perovskite photovoltaics hinges on the successful transition from laboratory-scale fabrication to industrial-scale manufacturing. A key challenge in fully printed perovskite solar cells with non-reflecting back electrodes is the deposition of high-quality, over-one-micron-thick perovskite layers to minimize photocurrent losses from incomplete light absorption. However, the formation of voids at the substrate/perovskite interface impedes the fabrication of such layers. Here, phase-field simulations reveal that the bottom voids originate from trapped residual solvents, driven by nanocrystal aggregation at the liquid–vapor interface during drying. Guided by these insights, we introduce a two-dimensional (2D) perovskite layer-assisted growth strategy to promote heterogeneous nucleation at the substrate, accelerating 3D perovskite crystallization and preventing solvent entrapment. This strategy enables the formation of highly crystalline, monolithic perovskite films exceeding one micrometer in thickness. The resulting void-free films maximize photocurrent extraction, achieving power conversion efficiencies of 19.9% on rigid substrates and 17.5% on flexible substrates in fully printed perovskite solar cells with non-reflecting carbon electrodes.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001491497500001
DO  - DOI:10.1039/D5EE01722J
UR  - https://juser.fz-juelich.de/record/1052276
ER  -