US Patent 9960390 Method of producing an optoelectronic device and optoelectronic device

A method of producing an optoelectronic device includes A) providing a substrate, B) applying a first electrode to the substrate, C) applying a first organic layer stack to the first electrode, D) producing a charge-generating layer stack on the first organic layer stack, E) applying a second organic layer stack to the charge-generating layer stack, and F) applying a second electrode to the second organic layer stack, wherein step D) includes D1) applying a solution of a first metal oxide precursor to the first organic layer stack, D2) generating a first charge-generating layer comprising a first metal oxide, D3) applying a solution of a second metal oxide precursor to the first charge-generating layer, and D4) generating a second charge-generating layer comprising a second metal oxide.