| 摘要 |
A known photovoltaic system comprises a photoelectrochemically active photovoltaic structure surrounded by water, irradiated by accumulated sunlight and without lateral current-collecting elements. Said photovoltaic structure is however highly sensitive to corrosion, and the dissociation gases produced must be separated. The light incidence occurs only from one side. A self-carrying photovoltaic membrane (PM) is provided in the inventive photovoltaic system, through which the electrolysis current flows, said membrane dividing the surrounding water into two separate water chambers (WKA, WKK). Oxygen is produced in one water chamber (WKA) and hydrogen is produced in the other water chamber (WKK). Both chambers are irradiated by sunlight. The active photovoltaic structure (PVS) is arranged in the water chamber (WKK) for the hydrogen production, especially in the form of a simplified CIS solar cell. Said photovoltaic membrane (PM) is coated on both sides with an electroconductive and light-permeable titanium dioxide layer (TS). Both titanium dioxide layers (TS) are modified in terms of material, and have oxygen-catalysing or hydrogen-catalysing properties. Preferably, the photovoltaic membrane (PM) is flexible and integrated as an axial partition into a flexible tube (S) comprising a light-permeable insert (LE) and having a simple light-collecting and fuel-collecting structure. |
