The invention relates to a solar cell and to a method for the production thereof, said solar cell having at photovoltaic layer (A) made of an organic material, especially a polymer material, which absorbs light and in which electron-hole pairs can be produced. The solar cell also comprises two opposite layer surfaces, one of which is connected to at least one layer (p) receiving the holes made in the photovoltaic layer (A) while the other layer surface is connected to at least one layer (n) receiving the electrons produced in the photovoltaic layer (A). The solar cell further comprises electrode areas En and Ep. The electrode area (Ep) electrically contacts the layer (p) receiving the holes while the other electrode area (En) electrically contacts the layer (n) receiving the electrons. The invention is particularly characterized in that the surface substrate (S) has opening structures (O) that project through laterally from the front side to the rear side.