NOVELTY - The metal oxide paste is prepared by mixing metal oxide nanoparticles, a binder resin and a solvent. The metal oxide paste is added to a miller and the metal oxide nanoparticles are pulverized. A paste containing uniformly distributed metal oxide nanoparticles is obtained. The obtained paste is coated on a conductive transparent substrate (21,31). The substrate is heated and a dye is adsorbed, to obtain a conductive electrode. Thus manufacture of oxide electrode is carried out.    USE - Manufacture of oxide electrode for dye-sensitized solar cell (claimed) for e.g. photo-electrochemical solar cell.    ADVANTAGE - The method efficiently provides oxide electrode with uniformly distributed metal oxide nanoparticles. The dye-sensitized solar cell comprising the oxide electrode has improved efficiency.    DETAILED DESCRIPTION - The metal oxide paste is prepared by mixing metal oxide nanoparticles, a binder resin and a solvent. The metal oxide paste is added to a miller and the metal oxide nanoparticles are pulverized. A paste containing uniformly distributed metal oxide nanoparticles is obtained. The obtained paste is coated on a conductive transparent substrate. The substrate is heated and a dye is adsorbed, to obtain a conductive electrode. Thus manufacture of oxide electrode is carried out. The metal oxide nanoparticles comprises oxides or complex oxides of titanium, zirconium, strontium, zinc, indium, Yr (sic), lanthanum, vanadium, molybdenum, tungsten, tin, niobium, magnesium, aluminum, yttrium, scandium, samarium or germanium. The binder resin is selected from ethyl cellulose and polyethylene glycol. The solvent is selected from ethanol, methanol, tetrahydrofuran and water. The conductive transparent substrate is a transparent plastic substrate selected from polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polypropylene, polyimide and triacetyl cellulose, or a glass substrate. The conductive transparent substrate is coated on either side by conductive film (A). The conductive film (A) is selected from indium-tin-oxide, fluorine-tin-oxide, zinc-gallium-oxide (ZnO-Ga2O3), zinc-aluminum-oxide (ZnO-Al2O3) and tin-antimony-oxide (SnO2-Sb2O3). The dye is a material containing ruthenium complex or an organic material that absorbs visible light. A dye-sensitized solar cell comprises a conductive electrode (20), a counter electrode (30), an electrolyte (40) and conductive films (A,B) (22,32). The conductive film (B) is coated on conductive film (A) and contains platinum or noble metal material.    DESCRIPTION OF DRAWING(S) - The drawing shows the cross-sectional view of the dye-sensitized solar cell.    Conductive electrode (20)    Conductive substrates (21,31)    Conductive films (22,32)    Metal oxide nanoparticle layer (23)    Counter electrode (30)    Electrolyte (40)