A photosensitized solar cell includes a transparent substrate, a groove formed in a surface of the transparent substrate, and having a wall surface and a bottom surface, at least a part of the wall surface being parallel to or inclined to the surface of the transparent substrate, a current collector wiring made of metal, provided on the bottom surface and wall surface of the groove, a transparent electrode layer provided in a non-groove region on the surface of the transparent substrate, a counter substrate, a conductive layer provided on the counter substrate, a semiconductor electrode provided between the conductive layer and the transparent electrode layer, and carrying a dye, and an electrolyte layer provided between the semiconductor electrode and the conductive layer.