Method for producing a thin film cell arrangement

A method for the production of a thin-film solar cell array, comprising a plurality of thin-film solar cells (I, II, III, . . . ) applied on a substrate (S), which comprise respectively at least one first rear-side electrode (1I, 1II, 1III, . . . ) disposed on top of the substrate (S), and at least one second electrode and/or a conversion layer (3I, 3II, 3III, . . . ) and also at least one photoactive layer (2I, 2II, 2III, . . . ) disposed between the rear-side electrode (1I, 1II, 1III, . . . ) and the second electrode and/or the conversion layer (3I, 3II, 3III, . . . ), the thin-film solar cell array

• a) having at least one overlapping region (B) in which respectively one first (I, II, . . . ) and one second thin-film solar cell (II, III, . . . ) are disposed in two layers (n, n+1, . . . ) and in pairs (I-II, II-III, . . . ) situated one above the other, one region of the respectively first thin-film solar cell (I, II, . . . ) in a first layer (n, . . . ) and one region of the respectively second thin-film solar cell (II, III, . . . ), which is disposed to a side of the respectively first thin-film solar cell (I, II, . . . ) orientated away from the substrate (S) in a layer (n+1, . . . ) situated above the respectively first thin-film solar cell (I, II, . . . ), being connected to each other and connected electrically in series, and
• b) having at least one transition region (A) in which only the respectively second thin-film solar cell (II, III, . . . ) of the pair of respectively first and respectively second thin-film solar cell (I-II, II-III, . . . ) is configured, and
• the rear-side electrode (1IIn+1, 1IIIn+1, . . . ), the photoactive layer (2IIn+1, 2IIIn+1, . . . ), and the second electrode and/or the conversion layer (3IIn+1, 3IIIn+1, . . . ) of the respectively second thin-film solar cell (II, III, . . . ) configured in the layer (n+1, . . . ) also forming the rear-side electrode (1IIn, 1IIIn, . . . ), the photoactive layer (2IIn, 2IIIn, . . . ) and the second electrode and/or conversion layer (3IIn, 3IIIn, . . . ) in the layer (n), simultaneously or successively depositing at least one first rear-side electrode (1I, 1II, 1III, . . . ) disposed on top of the substrate (S), and one photoactive layer (2I, 2II, 2III, . . . ) disposed above and also one second electrode and/or one conversion layer (3I, 3II, 3III, . . . ) also disposed on top of the substrate (S),
• producing the at least two thin film solar cells (I, II, III, . . . ) in at least one overlapping region (B) in pairs (I-II, II-III, . . . ) in at least two layers (n, n+1, . . . ) situated one above the other, by the respectively second thin-film solar cell (II, III, . . . ) of each pair (I-II, II-III, . . . ) of first (I, II, . . . ) and second thin-film solar cell (II, III, . . . ) being deposited in regions in a layer (n+1, n+2, . . . ) situated above the respectively first thin-film solar cell, and the respectively first (I, II, . . . ) and second thin-film solar cell (II, III, . . . ) in this region (B) being connected electrically in series, and
• wherein the respectively second thin-film solar cell (II, III, . . . ) of each pair (I-II, II-III) of first (I, II, . . . ) and second thin-film solar cell (II, III, . . . ) is deposited offset relative to the respectively first thin-film solar cell (I, II, . . . ) of each pair (I-II, II-III, . . . ) of first (I, II, . . . ) and second thin-film solar cell (II, III, . . . ) so that a transition region (A) is configured, in which the rear-side electrode (1II, 1III, . . . ), the photoactive layer (2II, 2III, . . . ), and also the second electrode and/or the conversion layer (3II, 3III, . . . ) of the respectively second thin-film solar cell (II, III, . . . ) of each pair (I-II, II-III, . . . ) of first (I, II, . . . ) and second thin-film solar cell (II, III, . . . ) associated with layer (n+1, n+2, . . . ) situated above the respectively first thin-film solar cell also forming the rear-side electrode (1II, 1III, . . . ), the photoactive layer (2II, 2III, . . . ), and the second electrode and/or the conversion layer (3II, 3III, . . . ) in a layer (n, n+1) situated below;
• wherein the deposition of:
• (1) the thin-film solar cells and/or of the rear-side electrode orientated towards the substrate (S), (2) the second electrodes and/or conversion layers, and (3) the photoactive layer of the thin-film solar cells is done either in a liquid phase or a vapour phase;
• or
• wherein in the first layer (n, . . . ), at least two partial thin-film solar cells (In, IIn, . . . ), which comprise respectively the rear-side electrode disposed on top of the substrate (S), and the second electrode and/or a conversion layer and also the photoactive layer disposed between the rear-side electrode and the second electrode and/or the conversion layer, are disposed or premanufactured and at least one further partial thin-film solar cell (IIn+1, IIIn+1, . . . ), which comprises respectively the rear-side electrode disposed on top of the substrate (S), and the second electrode and/or the conversion layer and also the photoactive layer disposed between the rear-side electrode and the second electrode and/or the conversion layer, are deposited in the second layer (n+1) offset on the at least two partial thin-film solar cells (In, IIn, . . . ) disposed in the first layer (n, . . . ), at least one overlapping region (B) being configured between at least one partial thin-film solar cell (In) disposed in the first layer (n, . . . ) and one partial thin-film solar cell (IIn+1) deposited in the second layer (n+1, . . . ) and also at least one transition region (A) by contacting the rear-side electrode, the photoactive layer and also the second electrode and/or the conversion layer of the partial thin-film solar cell (IIn+1) deposited in the second layer (n+1, . . . ) with the rear-side electrode, the photoactive layer and also the second electrode and/or the conversion layer of the partial thin-film solar cell (IIn) disposed in the first layer (n, . . . ) wherein the deposition of the partial thin-film solar cells is done either in a liquid phase or in a vapour phase.