NOVELTY - The dye-sensitized solar cell (10) comprises an oxide semiconductor electrode substrate having a transparent first electrode base material (11) provided with a function as an electrode and a porous layer (12) that is formed on the first electrode base material and contains a dye-sensitizer-supported fine particle of a metal oxide semiconductor, a counter substrate having a second transparent electrode base material provided with a function as an electrode, and a polymer electrolyte layer (3) formed between the oxide semiconductor electrode substrate and the counter substrate.    USE - Used as a dye-sensitized solar cell.    ADVANTAGE - The high-quality dye-sensitized solar cell can be economically, environmental friendly and simply manufactured with high photoelectric conversion efficiency, durability and stability, improved lifespan and lightweight.    DETAILED DESCRIPTION - The dye-sensitized solar cell (10) comprises an oxide semiconductor electrode substrate having a transparent first electrode base material (11) provided with a function as an electrode and a porous layer (12) that is formed on the first electrode base material and contains a dye-sensitizer-supported fine particle of a metal oxide semiconductor, a counter substrate having a second transparent electrode base material provided with a function as an electrode, and a polymer electrolyte layer (3) formed between the oxide semiconductor electrode substrate and the counter substrate so as to contact with the porous layer. The oxide semiconductor electrode substrate and the counter substrate are disposed such that the porous layer and the second electrode base material are opposed to each other. The polymer electrolyte layer contains a transparent fine particle, a polymeric compound and a redox pair, where the transparent fine particle has conductivity. A refractive index of the transparent fine particle differs from a refractive index of the polymeric compound. A transparency of the transparent fine particle is higher than a transparency of the polymeric compound. An INDEPENDENT CLAIM is included for a dye-sensitized solar cell module.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic cross-sectional view of a dye-sensitized solar cell.    Polymer electrolyte layer (3)    Sealing agent (4)    Dye-sensitized solar cell (10)    First electrode base material (11)    Porous layer. (12)