Dye-sensitized solar cell, and electrode and laminated film for the same

1. A laminated film comprising a porous semiconductor layer, a transparent conductive layer and a transparent plastic film, wherein

the porous semiconductor layer comprises crystalline titanium oxide fibers having a fiber diameter of 50 to 1,000 nm and a fiber length/fiber diameter ratio of 5 or more and being in a non-woven state in an amount of 10 wt % or more and crystalline titanium oxide fine particles having a particle diameter of 2 to 46 nm in an amount of 15 wt % or more, the crystalline titanium oxide fibers and the crystalline titanium oxide fine particles are substantially composed of an anatase phase and a rutile phase, the anatase phase content ratio calculated from the integral intensity ratio of X-ray diffraction is between 1.00 and 0.32, and the laminated film is used in an electrode for dye-sensitized solar cells.

2. The laminated film according to claim 1 , wherein an average crystallite size measured by the X-ray diffraction of the anatase phase of the porous semiconductor layer is 10 to 100 nm.

3. An electrode for dye-sensitized solar cells which comprises the laminated film of claim 1 and a dye adsorbed to the porous semiconductor layer of the laminated film.

4. A dye-sensitized solar cell comprising the electrode of claim 3 .

5. The laminated film according to claim 1 , wherein the transparent plastic film is of polyethylene-2,6-naphthalate.