NOVELTY - A dye sensitizing solar cell has a semiconductor electrode having a pigment-adsorbed titanium oxide layer (3) obtained by adsorbing a sensitizing dye to titanium oxide particle surface of titanium oxide film provided on a substrate. The titanium oxide particle is formed using a mixed solution obtained by dispersing titanium oxide, and metallic element (M) chosen from niobium and tantalum, in a solvent containing water.    USE - As power supply for electric product, such as calculator and for domestic application.    ADVANTAGE - The dye sensitizing solar cell has improved current density. The loss electron transport in titanium oxide film is suppressed.    DETAILED DESCRIPTION - A dye sensitizing solar cell has a surface electrode (10), an electrolyte (6) and a counter electrode (11). The surface electrode is a semiconductor electrode having a pigment-adsorbed titanium oxide layer obtained by adsorbing a sensitizing dye to titanium oxide particle surface of titanium oxide film provided on a substrate. The titanium oxide particle is formed using a mixed solution obtained by dispersing titanium oxide, and metallic element (M) chosen from niobium and tantalum, in a solvent containing water. The average particle diameter of titanium oxide particle is 100 nm or less. The surface roughness (Rz) of titanium oxide film is 2 microns or less. The total amount of titanium oxide and metallic element (M) is 30-100 ppm. The amount of metallic element other than titanium, niobium and tantalum is less than 10 weight ppm. An INDEPENDENT CLAIM is included for manufacture of titanium oxide. Titanium alkoxide solution, and oxide, halide and alkoxide of metallic element chosen from niobium and tantalum are mixed. Hydrolysis and dehydration of mixture is carried out to obtain titanium oxide.    DESCRIPTION OF DRAWING(S) - The figure shows the sectional view of dye sensitizing solar cell.    substrates (1,4)    conductive layers (2,5)    titanium oxide layer (3)    electrolyte (6)    surface electrode (10)    counter electrode (11)