Photoelectrochemical cell for light-driven production of hydrogen and oxygen, especially from water or another electrolyte based on aqueous solution, having a photoelectric layer structure and an electrochemical layer structure in a layer assembly, wherein - the photoelectric layer structure for absorption of light unaffected by the electrolyte forms a front side of layer assembly, and - the electrochemical layer structure for accommodation of the electrolyte forms a back side of the layer assembly, and - a conductive and corrosion-inhibiting coupling layer which electrically contacts the photoelectric layer structure and the electrochemical layer structure to one another in the layer assembly, wherein - the electrochemical layer structure has an electrode structure of a front electrode and an electrode structure of a back electrode, between which an ion exchange layer is arranged such that the ion exchange layer is in contact with the electrode structure, designed for conversion of the electrolyte, of the front electrode and/or with the electrode structure of the back electrode to form an integrated layer assembly, - wherein the electrode structure of the front electrode and/or the electrode structure of the back electrode has a functional layer, which is provided for conversion of the electrolyte and has been applied as a separate layer on a solid part of the front electrode and/or on a solid part of the back electrode, - wherein the first and/or second functional layer (23, 24) has a functionality which is catalytic for the conversion of the water in the electrolyte at the front electrode and/or back electrode, in that it bears a catalyst, - wherein an active component of the catalyst is based on elements selected from the group comprising: Ti, V, Cr, Mo, W, Mn, Fe, Ru, Co, Ni, Cu or Zn, - and wherein the electrolyte comprises a basic aqueous solution having a pH between 7.1 and 14. - the photoelectric layer structure for absorption of light unaffected by the electrolyte forms a front side of layer assembly, and - the electrochemical layer structure for accommodation of the electrolyte forms a back side of the layer assembly, and - a conductive and corrosion-inhibiting coupling layer which electrically contacts the photoelectric layer structure and the electrochemical layer structure to one another in the layer assembly, wherein - the electrochemical layer structure has an electrode structure of a front electrode and an electrode structure of a back electrode, between which an ion exchange layer is arranged such that the ion exchange layer is in contact with the electrode structure, designed for conversion of the electrolyte, of the front electrode and/or with the electrode structure of the back electrode to form an integrated layer assembly, - wherein the electrode structure of the front electrode and/or the electrode structure of the back electrode has a functional layer, which is provided for conversion of the electrolyte and has been applied as a separate layer on a solid part of the front electrode and/or on a solid part of the back electrode, - wherein the first and/or second functional layer (23, 24) has a functionality which is catalytic for the conversion of the water in the electrolyte at the front electrode and/or back electrode, in that it bears a catalyst, - wherein an active component of the catalyst is based on elements selected from the group comprising: Ti, V, Cr, Mo, W, Mn, Fe, Ru, Co, Ni, Cu or Zn, - and wherein the electrolyte comprises a basic aqueous solution having a pH between 7.1 and 14.