Abstract: Provided are a composition for a semiconductor electrode that can be sintered at a low temperature, a manufacturing method thereof, and a dye-sensitized solar cell using the composition. The composition for the semiconductor electrode comprises a colloid solution containing a nanocrystalline oxide material and an aqueous base solution. Even though the composition does not include binders, the composition can be sintered at a low temperature. By coating the composition on a conductive substrate and treating the substrate with a solution of TiCl4, the sintering between the nanoparticles can be reinforced. The dye-sensitized solar cell manufactured using the composition for the semiconductor electrode can have excellent photoelectric conversion efficiency.

Abstract: A flexible dye-sensitized solar cell is provided. The solar cell is formed by assembling a semiconductor electrode prepared by forming a nanoparticle oxide layer on a first flexible conducting substrate composed of a metal, such as a stainless steel, and allowing a dye to be adsorbed thereon and a counter electrode including a Pt layer formed on a second flexible conducting substrate composed of a transparent polymer. When a semiconductor electrode including an insulating thin film and a conducting thin film formed on the first conducting substrate is used, an energy conversion efficiency of the solar cell can be significantly improved when compared to a conventional flexible solar cell.