Rear contact solar cell and method for making same

A solar cell comprising:

• a semiconductor substrate with a substrate front and a substrate rear;
• a base region of a first doping type on the substrate rear, an emitter region of a second doping type on the substrate rear, and an emitter region of the second doping type on the substrate front, wherein the base region and the emitter region on the substrate rear are separated by a flank region that is arranged so as to be inclined in relation to said regions;
• a base contact, which electrically contacts the base region at least in partial regions, and an emitter contact, which electrically contacts the emitter region on the substrate rear at least in partial regions, wherein the base contact and the emitter contact each comprises a first metal layer that contacts the semiconductor substrate, which metal layer extends so as to be essentially parallel in relation to the substrate front, wherein the flank region does not comprise a metal layer, so that the emitter contact and the base contact are electrically separated.