| abstract |
(57) [Problem] To provide a photoelectrode having an excellent utilization factor of incident light and a dye-sensitized solar cell having an excellent energy conversion efficiency. An optical electrode (10) having a semiconductor electrode (2) having a light receiving surface (F2) and a transparent electrode (1) arranged adjacently on the light receiving surface of the semiconductor electrode, wherein the semiconductor electrode enters from the light receiving surface. The light scattering layer 6 includes rod-shaped and / or plate-shaped metal oxide particles that scatter light. And The rod-shaped metal oxide particles have a diameter of 40 to 200 nm and an aspect ratio of 2.5 or more. The plate-like metal oxide particles have a diameter of 40 to 200 nm and an aspect ratio of 2.5 or more. |