| 摘要 |
It is an object of the present invention to provide a solar cell with improved mechanical strength without increasing resistance between the electrodes. The solar cell (10) according to the present invention includes a silicon substrate (3), an aluminum electrode (1) that is a first electrode that collects electricity from the rear surface of the silicon substrate (3), and a silver electrode (2) that is a second electrode that takes out output from the aluminum electrode (1). The aluminum electrode (1) has an opening (1a) formed on rear surface of the silicon substrate (3) and a notch (1b) recesses in parallel to the direction in which principal stress acts from the opening (1a) in a plane of the silicon substrate (3), and the silver electrode (2) is formed to cover at least the opening (1a) and the notch (1b) of the aluminum electrode (1).
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