Heraeus Deutschland Gmbh & Co Kg

Jan Sütterlin

Andreas Elschner

Nina Kausch-Busies

Wilfried Lövenich

Stefan Schumann

Rüdiger Sauer

Armin Sautter

Arnulf Scheel

The present invention relates to a process for the production of a layered body (1), at least comprising the process steps: I) provision of a photoactive layer comprising a material having a perovskite type crystal structure; II) superimposing the photoactive layer at least partially with a coating composition A) comprising an electrically conductive polymer a) and an organic solvent b); III) at least partial removal of the organic solvent b) from the coating composition A) superimposed in process step II), thereby obtaining an electrically conductive layer superimposed on the photoactive layer. The present invention also relates to a layered body obtainable by this process, to dispersions, to an electronic device, to a process for the preparation of a photovoltaic device and to the photovoltaic device that is obtainable by this process.

PEDOT in perovskite solar cells

The present invention relates to a process for the production of a layered body (), at least comprising the process steps: I) provision of a photoactive layer comprising a material having a perovskite type crystal structure; II) superimposing the photoactive layer at least partially with a coating composition A) comprising an electrically conductive polymer a) and an organic solvent b); III) at least partial removal of the organic solvent b) from the coating composition A) superimposed in process step II), thereby obtaining an electrically conductive layer superimposed on the photoactive layer. The present invention also relates to a layered body obtainable by this process, to dispersions, to an electronic device, to a process for the preparation of a photovoltaic device and to the photovoltaic device that is obtainable by this process.

The present invention relates to a composition comprising: The present invention also relates to a layered structure comprising the composition, to a process for the production of the composition, to a process for the production of the layered structure and to devices comprising the layered structure as well as to the use of the composition in devices to achieve a prolongation of lifetime.

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Kö'ln, Germany

Jan Sütterlin