Backside-contact solar cell and method for producing a backside-contact solar cell

A back side contact solar cell comprising a semiconductor substrate having a front side and a back side, wherein the back side includes:

• a plurality of first areas on pedestal-like elevations of the semiconductor substrate, wherein each of the plurality of first areas has a first tunneling layer and a stack comprising a first conducting layer and a second conducting layer, the first tunneling layer is between the first conducting layer and the semiconductor substrate, the first conducting layer and the second conducting layer are each amorphous, polycrystalline or partially crystalline, and each of the elevations has a cross-section that widens at least partially in a first direction,
• a plurality of second areas each having the second conducting layer and a second tunneling layer between the second conducting layer and the semiconductor substrate,
• a plurality of third areas, wherein the third areas do not contain amorphous, polycrystalline or partially crystalline silicon,
• a first dielectric layer or a first dielectric layer stack at least partially covering a surface of the back side, wherein the first dielectric layer or the first dielectric layer stack includes a first interruption in the first areas and a second interruption in the second areas,
• a plurality of first electrodes, each contacting a unique one of the second conducting layers in the first areas through a corresponding one of the first interruptions, and
• a plurality of second electrodes, each contacting a different unique one of the second conducting layers in the second areas through a corresponding one of the second interruptions.