Abstract: In a method for manufacturing a foil-like electrical connector for connecting solar cells to form modules, an insulating carrier film sheet is initially provided in a width which essentially corresponds to the width of the solar cells to be connected. Furthermore, a conductive foil sheet having a width that is matched to the carrier film is provided. In addition, comb structures as subsequent electrical connection fingers are formed. The conductive foil sheet is positioned on the carrier film with the aid of pin-shaped extensions of a transport belt or a transport roller. The carrier film is subsequently joined to the conductive foil sheet, preferably via an adhesive bond. In the next step, an insulating cover film is applied, in particular laminated.

Abstract: In a method for producing a solar cell having a substrate made of crystalline silicon, on a surface of the Si substrate, a locally defined n-doped emitter region is produced by full-surface cold coating of the surface using a P-containing coating, followed by a local laser beam-doping of P atoms from the P-containing coating, and subsequent thermal driving in of the P atoms, starting from the doping-in region.

Abstract: A solar cell includes: a passivating layer sequence having a plurality of island-like recesses from which the passivating layers have been completely removed; a thin first metal layer situated on the passivating layer sequence and situated in the recesses on the substrate surface; a thin dielectric cover layer covering the first metal layer which has a first regular arrangement of narrow line-type openings and a second regular arrangement of essentially wider line-type or extended island-type openings, the first and second opening arrangement being aligned at an angle; and a highly conductive second metal layer able to be soldered at the exposed surface in the openings of the first and second opening arrangement and contacts the first metal layer there.

Abstract: A frame for a solar module that includes at least one solar cell. The solar-module frame has a frame corner having a corner connector made of a first material, in particular made of aluminum, and having a corner element made of a second material, which is different from the first material, in particular made of plastics material.

Abstract: A method for producing monocrystalline n-silicon solar cells having a rear-side passivated p+ emitter and rear-side, spatially separate heavily doped n++-base regions near the surface, as well as an interdigitated rear-side contact finger structure, which is in conductive connection with the p+-emitter regions and the n++-base regions. An aluminum thin layer or an aluminum-containing thin layer is first deposited on the rear side of the n-silicon wafer, and the thin layer is subsequently structured so that openings are obtained in the region of the future base contacts. In a further process step, the aluminum is then diffused into the n-silicon wafer in order to form a structured emitter layer.