Perfluoroalkylsulfonyl ammonium for humidity- resistant printing high-performance phase-pure FAPbI3 perovskite solar cells and modules

Chen X, Yang F, Yuan L, Huang S, Gu H, Wu X, Shen Y, Chen Y, Li N, Egelhaaf HJ, Brabec C, Zhang R, Gao F, Li Y, Li Y (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Joule Elsevier

DOI: 10.1016/j.joule.2024.05.018

Abstract

High-quality phase-pure formamidinium lead triiodide (FAPbI3) perovskite film needs to be fabricated under strict control of the surrounding atmosphere, which becomes more rigorous when large-area FAPbI3 film is involved, leading to high-performance FAPbI3 perovskite solar cells and modules predominantly carried out in an inert gas-filled atmosphere. In this work, we propose a scalable printing strategy for the large-area high-quality phase-pure FAPbI3 film under a high-humidity atmosphere (up to 75% ± 5% relative humidity) by regulating the perovskite precursor ink with a functional perfluoroalkylsulfonyl quaternary ammonium iodide. This approach decreases the energy barriers of cubic phase formation and heterogeneous nucleation, thereby regulating the FAPbI3 crystallization. The printed photovoltaic small-area cells and large-area modules achieved remarkable power conversion efficiencies of 24.37% and 22.00%, respectively. Specifically, the unencapsulated device exhibits superior operational stability with T90 > 1,060 h, ambient stability with T90 > 2,020 h, and thermal stability with T90 > 2,350 h.

Authors with CRIS profile

Hans-Joachim Egelhaaf Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Involved external institutions

Linköpings universitet / Linköping University SE Sweden (SE) Soochow University, Suzhou / 苏州大学 CN China (CN) Suzhou Sunwell New Energy Co. CN China (CN) South China University of Technology (SCUT) / 华南理工大学 CN China (CN)

How to cite

APA:

Chen, X., Yang, F., Yuan, L., Huang, S., Gu, H., Wu, X.,... Li, Y. (2024). Perfluoroalkylsulfonyl ammonium for humidity- resistant printing high-performance phase-pure FAPbI3 perovskite solar cells and modules. Joule. https://doi.org/10.1016/j.joule.2024.05.018

MLA:

Chen, Xining, et al. "Perfluoroalkylsulfonyl ammonium for humidity- resistant printing high-performance phase-pure FAPbI3 perovskite solar cells and modules." Joule (2024).

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