Patent ID: 8884154

Claim:
A thin-film solar module contacted on one side comprising: a support layer; a photoactive absorber layer on the support layer; at least one dopant layer deposited over a surface area of at least one side of the absorber layer so as to form a thin-film packet that is divided into thin-film solar cell areas by insulating separating trenches; a first contact system including contacts connected by an outer contact layer; a second contact system consisting of an inner contact layer completely covering a side of the solar cell areas that face away from the support layer so as to separately discharge excess charge carriers generated by incident light in the absorber layer, the second contact system including structures that surround and electrically insulate the contacts, the contacts extending through the inner contact layer from the outer contact layer, wherein the first and second contact systems are located on a same side of the photovoltaic absorber layer and are electrically conductive and connected in series by series contacts in interconnection areas and electrically insulated from each other by an insulation layer outside of the interconnection areas.