Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.346
Publication date: 18th December 2023
In recent years, remarkable progress has been made in the field of perovskite solar cells, resulting in power conversion efficiencies (PCE) surpassing 26%. The vast majority of research efforts are dedicated to the processing of perovskites from solution, often from highly toxic solvents.[1] While this is manageable for lab-scale fabrication, the use of such solvents raises considerable concerns regarding the possibility to fabricate perovskite devices on the mass scale. In this talk, I will present a strategy towards the selection of more sustainable solvent alternatives for the deposition of perovskite layers. The strategy is based on the utilization of Hansen solubility parameter space for the prediction of suitable solvents and solvent-antisolvent systems.[2] I will also present alternative deposition methods which are solvent free, and can be more easily scaled up in a sustainable manner.[3]
[1] “Sustainability in Perovskite Solar Cells”, K. P. Goetz, A. D. Taylor, Y. J. Hofstetter and Y. Vaynzof,
ACS Appl. Mater. Interfaces 13, 1, 1 (2021).
[2] “Solvent–antisolvent interactions in metal halide perovskites”, J. R. Bautista-Quijano, O. Telschow, F. Paulus, Y. Vaynzof, Chem. Comm. 59 (71), 10588-10603 (2023).
[3] “The Future of Perovskite Photovoltaics – Thermal Evaporation or Solution Processing?”, Y. Vaynzof,
Adv. Energy Mater. 10, 48, 2003073 (2020).
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