Patent ID: 8110740

Claim:
A dye sensitizing solar cell comprising: a photoelectrode substrate comprising: a substrate member; a transparent electrode film formed on the substrate member; a composite film formed on the transparent electrode film, said composite film comprising metal portions of a metal and transparent oxide portions of an oxide of the metal; a porous semiconductor electrode film formed on the composite film; and a sensitizing dye adsorbed or carried on the porous semiconductor electrode film, wherein contacting portions of said porous semiconductor electrode film with said composite film directly contact the metal portions of the composite film without directly contacting said transparent oxide portions thereof; a counter electrode substrate having a counter electrode which faces the porous semiconductor electrode film of the photoelectrode substrate; and an electrolyte filled in a space between the counter electrode substrate and the photoelectrode substrate, wherein said transparent oxide portions of the composite film directly contact said electrolyte.