Abstract: The solar cell has a pigmented dielectric reflector, which includes two dielectric layers with different refractive indices and pigments embedded in the layers, so that the solar cell has good light-trapping properties and high efficiency with a small reflector layer thickness. The material systems suitable for producing the pigmented dielectric reflector are also part of the invention.

Abstract: In a thin-film solar module comprising a transparent substrate (1), a transparent doped zinc oxide front electrode film (2) deposited on substrate (1), a semiconductor film (3), an optional doped zinc oxide rear electrode film (4), and a reflecting layer (5) on the rear surface turned away from the side of light incidence (hv), the dopant quantities in doped zinc oxide front and/or rear electrode films (2, 4) decrease from substrate (1) towards semiconductor film (3) and from semiconductor film (3) towards reflecting layer (5), respectively.