Abstract: Conductive material grids or lines embedded or partially embedded in a transparent substrate of a solar cell. The grids or lines can have a higher conductivity than the anode or they can have the same conductivity. The grids or lines increase the volume of the anode and, thus decrease sheet resistance of the same.

Abstract: Conductive material grids or lines embedded or partially embedded in a transparent substrate of a solar cell. The grids or lines can have a higher conductivity than the anode or they can have the same conductivity. The grids or lines increase the volume of the anode and, thus decrease sheet resistance of the same.

Abstract: Two methods to achieve a tandem solar cell are disclosed. The first involves stacking together two or more complete polymer solar cells, each having a polymer blend active layer. The individual solar cells can be connected either in series or in parallel. In the second method, two individual polymer solar cells are first constructed and then laminated together to form a tandem structure. The lamination can be metal-free, thus resulting in translucent polymer solar cells.

Abstract: A polymer solar cell has an anode, cathode and an active layer. The anode has a surface area larger than the cathode. On the anode, in the area with no cathode, is a conducting element in electrical contact with the anode, having a higher conductivity than the anode and substantially surrounding the cathode in order to minimize the distance between any two points on the cathode and the conducting element. The conducting element allows electrons to travel a shorter distance in the anode and through a higher conducting path to an electrical contact.

Abstract: A translucent solar cell has a transparent substrate and a first translucent electrode that is in anode. A transparent active layer, that is a substantially organic material layer, is formed on top of the anode. On top of the active layer, a second translucent electrode is formed. The second translucent electrode is the cathode. In a variation, the first translucent electrode is the cathode and the second translucent electrode the anode. The flexibility in choosing the order of the anode and cathode relative to the transparent substrate allows for an increase in processing techniques and, thus, the amount of utilizable materials to increase the power conversion efficiency of translucent solar cells.