A solar cell includes, on a support: a transparent negative electrode; auxiliary metal wiring that is in contact with the negative electrode; a positive electrode that faces the negative electrode; and a photoelectric conversion layer between the negative electrode and the positive electrode, and between the negative electrode and the photoelectric conversion layer, in which the electron transport layer includes an electron transport material and an insulating material, and the insulating material is a crosslinking macromolecule obtained by crosslinking a crosslinkable macromolecule with a compound having a plurality of crosslinkable groups.