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Article | Open Access

Methylamine-complexed liquefaction perovskite precursor for high-performance printable carbon-based solar cells

Jie Shenga, Wu Shaoa, Huidong Zhanga,b, Jingshan Hea, Yuanbo Wanga, Tian Dinga, Jingwen Hea, Ronghao Cena, Zhihao Denga, Yufei Fua, Yongzhen Wua,b, Wenjun Wua( ), Wei-Hong Zhua,b
Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
Center of Photosensitive Chemicals Engineering, East China University of Science and Technology, Shanghai, 200237, China
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HIGHLIGHTS

• This study investigates the application of methylamine-complexed liquefaction as a novel technique for fabricating mesoscopic perovskite solar cells.

• The fabricated mesoscopic perovskite solar cells exhibit enhanced performance, achieving a power conversion efficiency of 16.73%, an improvement over the previous 15.48%.

• The research explores the mechanism of perovskite crystallization during the methylamine-complexed liquefaction process.

• This innovative approach offers a promising and sustainable solution for the future of solar cell fabrication.

Abstract

To address the environmental impact of solution-based perovskite solar cell fabrication, solvent-free approaches have gained prominence. This study innovatively introduces a methylamine-assisted precursor liquefaction technique for printable mesoscopic perovskite solar cells (p-MPSCs). This innovative method achieves superior crystal quality and enhanced charge carrier transport, significantly boosting device performance. Furthermore, comprehensive investigations are conducted to elucidate the crystallization mechanism of perovskite. Through meticulous process optimization, we achieve a remarkable power conversion efficiency (PCE) of 16.73%, surpassing the 15.48% PCE of the solution-based method. This approach offers a promising avenue for producing environmentally friendly and sustainable p-MPSCs, contributing to the development of more efficient de-solvation strategies.

Graphical Abstract

Keywords

Phase transitionPrintable carbon-based perovskite solar cellsDe-solvationCrystal qualityCharge carrier

References

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Green Chemical Engineering
Volume 7 Issue 4,
December 2026
Pages 380-388
DOI: 10.1016/j.gce.2024.12.002

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Cite this article:
Sheng J, Shao W, Zhang H, et al. Methylamine-complexed liquefaction perovskite precursor for high-performance printable carbon-based solar cells. Green Chemical Engineering, 2026, 7(4): 380-388. https://doi.org/10.1016/j.gce.2024.12.002

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Received: 29 October 2024
Revised: 15 December 2024
Accepted: 26 December 2024
Published: 26 December 2024
© 2024 Institute of Process Engineering, Chinese Academy of Sciences.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).