Patent ID: 8691325

Claim:
A method for fabricating a dye-sensitized solar cell, comprising the steps of: (a) adding titanium isopropoxide into a polymer solution, followed by adding an acid as a catalyst thereinto, and then stirring the resulting mixture at room temperature, to obtain a solution for electrospinning; (b) electrospinning the solution to form a film made of ultra-fine polymer-titanium dioxide composite fibers onto an ITO-coated transparent conductive glass substrate or FTO-coated transparent conductive glass substrate; (c) pre-treating the substrate the film of the ultra-fine polymer-titanium dioxide composite fibers formed thereon with a solvent for pre-treatment which contains acetone or dimethyl formamide; (d) thermally treating the pre-treated substrate to form a layer of ultra-fine titanium dioxide fibers onto the substrate; (e) impregnating the thermally treated substrate in a solution of dye molecules to obtain a semiconductor electrode on which the dye molecules are adsorbed into the ultra-fine titanium dioxide fibers; (f) obtaining a counter electrode onto an ITO-coated transparent conductive glass substrate or FTO-coated transparent conductive glass substrate; (g) performing a heating/pressing process on the semiconductor electrode and the counter electrode with a spacer therebetween, so as to attach the semiconductor electrode and the counter electrode to each other; and (h) injecting electrolyte into empty space between the semiconductor electrode and the counter electrode.