METHOD FOR MAKING SOLAR SUB-CELLS FROM A SOLAR CELL

• Main Authors: SPORTEL PETER EDWIN, DUBBELDAM GERRIT CORNELIS, WINKELER JAN
• Format: Patent
• Language: English
• Published: 12.11.2009
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention pertains to a method for making a solar cell module comprising solar cells connected in series, the module comprising a first electrode, an active layer, and a second electrode, wherein at least one of the first and second electrodes is a transparent conductive oxide layer, comprising the steps of : a) making in a system composed of at least a substrate overlaid by a first electrode layer, which first electrode layer is overlaid by an active layer, at least one pair of a first, interruption, groove providing an interrupt in the front electrode and the active layer and a second, interconnection, groove through the active layer, the first and second grooves being positioned close to each other; b) inserting an insulating compound into the interruption groove; c) applying prior to step b), simultaneously with step b), or after step b) a lift-off compound onto the active layer at a position adjacent to the interconnection groove on the other side of the interconnection groove than the insulation groove; d) applying the second electrode over the active layer, the insulating compound and the lift-off compound; and e) removing the lift-off compound and the overlaying second electrode at that position to obtain a groove in the second electrode.