Abstract: Disclosed is a solar cell including a semiconductor substrate, a conductive region on or at the semiconductor substrate, and an electrode electrically connected to the conductive region. The electrode includes a plurality of finger lines formed in a first direction and parallel to each other and a bus bar electrically connected to the plurality of finger lines and formed in a second direction crossing the first direction. The bus bar includes a plurality of pad portions positioned in the second direction, and the bus bar has a plurality of regions, which are different from each other in at least one of an arrangement and an area of the plurality of pad portions, in the second direction.

Abstract: Disclosed is a solar cell including a semiconductor substrate, a conductive region on or at the semiconductor substrate, and an electrode electrically connected to the conductive region. The electrode includes a plurality of finger lines formed in a first direction and parallel to each other and a bus bar electrically connected to the plurality of finger lines and formed in a second direction crossing the first direction. The bus bar includes a plurality of pad portions positioned in the second direction, and the bus bar has a plurality of regions, which are different from each other in at least one of an arrangement and an area of the plurality of pad portions, in the second direction.