Towards a More Sustainable Processing of Metal Halide Perovskites
Yana Vaynzof a b
a Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden), Helmholtzstraße, 20, Dresden, Germany
b Technical University of Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV26)
Uppsala, Sweden, 2026 May 18th - 20th
Organizers: Gerrit Boschloo, Ellen Moons, Feng Gao and Anders Hagfeldt
Invited Speaker, Yana Vaynzof, presentation 032
Publication date: 11th March 2026

In recent years, remarkable progress has been made in the field of metal halide perovskite solar cells, resulting in power conversion efficiencies (PCE) that surpass 27%. As the vast majority of research efforts are dedicated to their processing from solution, the use of the highly toxic, yet ubiquitously used, dimethylformamide (DMF) for the processing of perovskite represents a major hurdle for their adaptation in industrial applications on the large-scale. In the first part of this talk, I will propose a strategy for selecting green solvent alternatives to DMF that enable a more sustainable processing of perovskite based solar cells. To validate the proposed selection strategy, I will demonstrate the ability of multiple green solvents to be used to fabricate efficient perovskite solar cells. In the second part of the talk, I will introduce novel strategies for a solvent-free fabrication of perovskites by vapor deposition, focusing on addressing the current challenges of this deposition method.

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