NOVELTY - A dye-sensitized solar cell comprises a substrate (I) (100), an electrode layer (A) (110) disposed on the substrate (I), an electron transport layer disposed on the electrode layer (A), a photosensitive dye layer (130) disposed on the electrode layer (A), an electrolyte layer disposed on the photosensitive dye layer, an electrode layer (B) (150) disposed on the electrolyte layer, a transparent electrode layer disposed on the electrode layer (B), and a substrate (II) (170) disposed on the electrode layer (B).    USE - Dye-sensitized solar cell is used for supplying power.    ADVANTAGE - The dye-sensitized solar cell has improved photovoltaic effect and photocurrent efficiency, excellent stability, and high photoelectric conversion efficiency.    DETAILED DESCRIPTION - A dye-sensitized solar cell comprises a substrate (I), an electrode layer (A) disposed on the substrate (I), an electron transport layer disposed on the electrode layer (A), a photosensitive dye layer disposed on the electrode layer (A), an electrolyte layer disposed on the photosensitive dye layer, an electrode layer (B) disposed on the electrolyte layer, a transparent electrode layer disposed on the electrode layer (B), and a substrate (II) disposed on the electrode layer (B). The electrolyte layer comprises an organic electrolyte material. The salt containing segment is chosen from quaternary ammonium salt containing segment, Viologen salt containing segment, N-methylpyridine salt containing segment, imidazole salt containing segment, and pyrrolidone salt containing segment. The negative charged ions in the salt containing segment is chosen from halogen ions, perchlorate (ClO4-), sulfite (SO3-), hexafluorophosphate (PF6-), or trifluoro methyl sulfite (CF3SO3-). The electrode layer (A) comprises fluorine-doped tin oxide. The dye-sensitized solar cell further comprises an electron transport layer (a) disposed between the electrode layer (A) and the photosensitive dye layer. The electron transport layer (a) contains metal oxide comprising titanium dioxide, zinc oxide, cadmium oxide and tin dioxide, or composite metal oxide comprising zinc-titanium oxide and vanadium-titanium oxide. The photosensitive dye layer contains organometallic complex containing ruthenium. The organometallic complexes containing ruthenium comprises N3 dye, N712 dye, N719 dye, black dye, and organic dye molecules. The electrode layer (B) contains gold, platinum, alloy of gold and platinum, graphite, and carbide material. The transparent electrode layer contains indium-tin oxide.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the dye-sensitized solar cell.    Substrate I (100)    Electrode layer A (110)    Photosensitive dye layer (130)    Electrode layer B (150)    Substrate II (170)