Ecole Polytechnique Federale De Lausanne

Universitat De Valéncia

Saule S. A.

Ecole Polytechnique Féderale De Lausanne (epfl)

Saule Sp. Z.o.o

Saule Spolka Akcyjna

Olga Malinkiewicz

Michael Graetzel

Mohammad Khaja Nazeeruddin

Artur Kupczunas

Hendrik Jan Bolink

Alejandra Soriano Portillo

Kasjan Misztal

Konrad Wojciechowski

Zbigniew Miara

Juan Pablo Prieto Ruiz

Barbara Wilk

A method for obtaining a salt with a general formula: RNI, wherein: RN is an organic cation (RN), R represents substituents (R—) independently selected from a group consisting of organic substituents: R—, R—, R— and hydrogen (H—), x is a number of the substituents R— directly linked with the nitrogen (N) atom in the organic cation RN, wherein x is 3 or 4, I is an iodide anion (I). The method comprises: preparing a reaction mixture comprising the steps of: synthesizing hydrogen iodide (HI) in situ by mixing molecular iodine (I) with formic acid (COOH) in a molar ratio of molecular iodine (I): formic acid (COOH) of no less than 1.01:1, in a solvent medium, introducing into the solvent medium a compound being a donor of organic cation RNin an amount providing the molar ratio of the donor of organic cation RN: molecular iodine (I) of no less than 1.01:1, and maintaining the reaction mixture at a temperature of not less than 20° C. for the time necessary to obtain the reaction product being the salt with the general formula RNI. The obtained product is a substrate for synthesis of perovskites.

Method for synthesis of organic iodides, a perovskite-forming composition comprising an organic iodide and a photovoltaic cell with a perovskite layer obtained therefrom

The present invention relates to a method for producing a solid solar cells, including the steps of providing a hole collector layer, applying a conductive layer onto the hole collector layer, applying an electron blocking layer onto the conductive layer, applying a sensitizer layer onto the electron blocking layer, applying a hole blocking layer onto the sensitizer layer, and providing a current collector and/or a metal layer or a conductor. The sensitizer layer including an organic-inorganic perovskite is applied by co-deposition of one or more sublimated divalent or trivalent salts and of one or more sublimated organic ammonium salts to obtain the organic-inorganic perovskite. The invention also relates to solid state solar cells, wherein the charge flow is inverted compared to the charge flow in a solar cell of conventional architecture and/or obtained by the above method.

Inverted solar cell and process for producing the same

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Wroclaw, Poland

Olga Malinkiewicz