SOLAR CELL, MANUFACTURING METHOD THEREOF, AND SOLAR CELL MODULE

摘要

This solar cell has a collector electrode (7) on a primary surface of a photoelectric conversion unit (50). The collector electrode (7) includes, in order from the photoelectric conversion unit (50), a first conducting layer (71) and a second conducting layer (72), and includes an insulating layer (9) between the first conducting layer (71) and the second conducting layer (72). The first conducting layer (71) includes a low melting point material, and a part of the second conducting layer (72) is electrically connected to the first conducting layer (71) via an opening in the insulating layer. The second conducting layer is preferably formed by plating. Further, in order to electrically connect the first conducting layer and the second conducting layer, it is preferable, before forming the second conducting layer, to perform annealing by heating and to form the opening in the insulating layer.