Solar cell and production thereof

A solar cell is configured to include: a substrate; a conductive film formed on the substrate; a compound semiconductor layer formed on the conductive film, including a p-type semiconductor crystal containing an element of Group Ib, an element of Group IIIb, and an element of Group VIb; a n-type window layer formed on the compound semiconductor layer, having apertures; and a n-type transparent conductive film formed on the n-type window layer and on portions of the compound semiconductor layer at the apertures of the n-type window layer. The compound semiconductor layer includes high-resistance parts (B), in portions of the compound semiconductor layer in the vicinity of a surface thereof on a side opposite to the conductive film, and the high-resistance parts (B) contain a n-type impurity doped in the p-type semiconductor crystal. The high-resistance parts (B) are located under the apertures of the n-type window layer, respectively.