TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The concentration of aqueous solution (I) and aqueous sol (II) is 0.1-20 weight%. The organic compound (in weight parts) (0.05-1.5) is dissolved in 100 weight parts of aqueous solution (I), aqueous sol (II) or mixture (III). The mixture (III) (100) contains aqueous solution (I) (0-70) and sol (II) (30-100). The mixed aqueous solution further contains solvent (0-15000) and a photosensitizer. The solvent is water, organic solvent or mixed solvent.Preferred Substrate: The substrate is plastic, rubber board, film or membrane. The electroconductive substrate (3) is obtained by forming electroconductive film (2) on a transparent substrate (1).Preferred Properties: The average particle diameter of titanium oxide seed in mixture (III) is 5-100 nm. The abundance of anatase crystal having crystalline diameter of 1-20 nm is 30-100%. The current value and voltage value generated when ultraviolet light is irradiated on a film (A) obtained from the mixed aqueous solution are larger than the current value and voltage value generated when ultraviolet light is irradiated on a film (B) obtained from the mixed aqueous solution which does not contain the organic compound. The band gap of film (A) is smaller than band gap of film (B). The difference between the band gap of films (A,B) is 0.1 eV or more. The electrolyte and photosensitizer are transparent.Preferred Conditions: The mixed aqueous solution is dried at 60degreesC or less, 60-150degreesC for 10-600 seconds or 150-250degreesC for 10-600 seconds.Preferred Method: Ultraviolet ray is irradiated after drying the solution. The photosensitizer is fixed on the surface of particles present in the semiconductor film or arrived on the surface of the film.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The concentration of aqueous solution (I) and aqueous sol (II) is 0.1-20 weight%. The organic compound (in weight parts) (0.05-1.5) is dissolved in 100 weight parts of aqueous solution (I), aqueous sol (II) or mixture (III). The mixture (III) (100) contains aqueous solution (I) (0-70) and sol (II) (30-100). The mixed aqueous solution further contains solvent (0-15000) and a photosensitizer. The solvent is water, organic solvent or mixed solvent.Preferred Substrate: The substrate is plastic, rubber board, film or membrane. The electroconductive substrate (3) is obtained by forming electroconductive film (2) on a transparent substrate (1).Preferred Properties: The average particle diameter of titanium oxide seed in mixture (III) is 5-100 nm. The abundance of anatase crystal having crystalline diameter of 1-20 nm is 30-100%. The current value and voltage value generated when ultraviolet light is irradiated on a film (A) obtained from the mixed aqueous solution are larger than the current value and voltage value generated when ultraviolet light is irradiated on a film (B) obtained from the mixed aqueous solution which does not contain the organic compound. The band gap of film (A) is smaller than band gap of film (B). The difference between the band gap of films (A,B) is 0.1 eV or more. The electrolyte and photosensitizer are transparent.Preferred Conditions: The mixed aqueous solution is dried at 60degreesC or less, 60-150degreesC for 10-600 seconds or 150-250degreesC for 10-600 seconds.Preferred Method: Ultraviolet ray is irradiated after drying the solution. The photosensitizer is fixed on the surface of particles present in the semiconductor film or arrived on the surface of the film.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Solvent: The organic solvent is alcohol. The mixed solvent contains water (5-50), ethanol (50-95), isopropanol (0-40) and methanol (0-40). Alternately, the mixed solvent contains water-soluble dihydric alcohol (0-20 or 5-40) having boiling point of 250degreesC or less, water-soluble monohydric alcohol (40-95 or 30-90) having boiling point of 120degreesC or less, butyl cellosolve (0-30) and water (5-30).Preferred Photosensitizer: The photosensitizer is a pigment.    TECHNOLOGY FOCUS - POLYMERS - Preferred Compound: The organic compound has alkyl silicate structure, and is polyethylene oxide polymer modified poly dimethyl siloxane or polyethylene oxide-polypropylene oxide block copolymer modified poly dimethyl siloxane. EXAMPLE - Peroxotitanic acid aqueous solution (in weight parts) (20) and peroxotitanic acid modified anatase-type titanium oxide aqueous sol (80) were mixed at room temperature, to obtain titanium oxide-type compound liquid mixture. The obtained mixture had particle size distribution of 46 nm, anatase crystalline diameter of titanium oxide of 6.5 nm and abundance of anatase crystal of 83%. The obtained mixture (100) and FZ-2161 (polyether modified poly dimethyl siloxane) (0.25) were mixed, to obtain a mixed aqueous solution. The solution had excellent shelf life, safety, wettability with respect to substrate and drying property. The solution formed uniform film with excellent adhesion, wear resistance, hardness, transparency, few interference color and muddiness.