Efficient inverted perovskite solar cells by slot die coating
Jinzhao Li a, Eva Unger a b, Janardan Dagar a
a HySPRINT Innovation Lab, Department Solution-Processing of Hybrid Materials and Devices, Helmholtz Zentrum Berlin, Berlin, Germany.
b Chemical Physics and Nano Lund, Lund University, P.O. Box 124, Lund 22100, Sweden
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
València, Spain, 2022 May 19th - 25th
Organizers: Pablo Docampo, Eva Unger and Elizabeth Gibson
Contributed talk, Jinzhao Li, presentation 171
DOI: https://doi.org/10.29363/nanoge.hopv.2022.171
Publication date: 20th April 2022

Metal-halide perovskite (MHP) solar cells are continuing to break efficiency records for solution-processed solar cell devices. With over 25% power conversion efficiency, MHP solar cell are the best solution-processed devices to date. Having reached performance on par with other thin-film devices in laboratory-scale test devices, scaling MHP-based solar cells to a larger area is one of the technologically most important steps. Meantime, it requires the development and optimization of scalable process technologies, especially in ink formulations that enable reproducible coating results. A variety of scalable fabrication techniques have been successfully utilized for the deposition of MHP materials. Notably, slot-die coating is considered as one of the most promising deposition techniques in the fabrication of functional coating and solution-processed optoelectronics as uniform and compact thin-films can be processed on both rigid and flexible substrates. In this work, we demonstrated the ink optimization enable slot die coating efficient inverted perovskite solar cells.[1]




J.Z.L. acknowledges funding from the Chinese Scholarship Council (CSC, grant No. CSC201908120116) and HyPerCells joint Graduate School. E.U. and her team acknowledge funding from the German Ministry of Education and Research (BMBF) for the Young Investigator Group Hybrid Materials Formation and Scaling (HyPerFORME) within the program “NanoMatFutur” (grant no. 03XP0091) and the SNaPSHoTs project (grant no. 01IO1806).Lab infrastructure in the Helmholtz Innovation Lab was supported by the Helmholtz Energy Materials Foundry (HEMF) and the PEROSEED (ZT-0024) project, as well as the support of the allocation of synchrotron radiation beamtime at myspot & KMC-2 (BESSY II, HZB, Germany) is gratefully acknowledged. Germany is gratefully acknowledged.

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