PHOTOELECTRODE FOR DYE-SENSITIZED SOLAR CELL, PREPARING METHOD OF THE SAME, AND DYE-SENSITIZED SOLAR CELL INCLUDING THE SAME

摘要

The present invention relates to a photo electrode for a dye-sensitized solar cell using a porous transition metal oxide structure including metal nanoparticles, a preparing method of the same, and a dye-sensitized solar cell including the same. According to the present invention, a solar cell with improved efficiency can be prepared by increasing a light absorption efficiency due to a plasmon effect of the metal nanoparticles, and a thickness controlled dye-sensitized solar cell can be prepared by forming and applying colloid crystals in water by applying a spin coating of colloid particles or a casting method. [Reference numerals] (S100) Form colloid crystals on a conductive transparent substrate; (S200) Form a first transition metal oxide porous layer by selectively removing the colloid crystals by sintering after injecting a solution containing first transition metal oxide particles and metal nanoparticles inside a colloid crystal layer; (S300) Form a second transition metal oxide layer on the first transition metal oxide layer by coating the first transition metal oxide porous layer with a solution containing second transition metal oxide precursor; (S400) Adsorb photosensitive dye on the coated first transition metal oxide porous layer