Ecole Polytechnique Federale De Lausanne

Aalto University Foundation Sr

Aalto University Foundation

Solaronix S.a

Syed Ghufran Hashmi

Michael Graetzel

Shaik Mohammed Zakeeruddin

David Martineau

Xiong Li

Merve Ozkan

The present invention relates to a double sided solar cell assembly, including at least one carbon-based perovskite solar cell unit, which has been included in a sandwich structure together with a second solar cell unit, which is a dye-sensitized photoelectrode.

Double sided solar cell assembly

The present invention provides a method for depositing an organic-inorganic perovskite, the method comprising the step of depositing a perovskite precursor solution comprising one or more organic cation, wherein said precursor solution preferably deposited by inkjet printing. The method is particularly useful in the manufacture of perovskite solar cells. For depositing the perovskite, a perovskite precursor solution or ink is preferably used, which comprises an organic cation carrying an anchoring group, such as 5-ammonium valeric acid. Surprisingly, the presence of the latter compound renders the precursor solutions stable and suitable for inkjet printing.

Method for inkjet printing an organic-inorganic perovskite

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Espoo, Finland

Syed Ghufran Hashmi