DYE-SENSITIZED SOLAR CELL INCLUDING A HIGHLY EFFICIENT LIGHT-SCATTERING LAYER

摘要

The present invention relates to a dye-sensitized solar cell including a highly-efficient light-scattering layer, and more particularly, to a structure of a light-scattering layer that does not reduce an effective generation area and increases photoelectric conversion efficiency, and to a dye-sensitized solar cell including the light-scattering layer. According to the dye-sensitized solar cell, which includes a transparent substrate, a conductive substrate, a multilayer light electrode layer including at least two layers on the conductive substrate, a light-scattering layer as the uppermost layer in the multilayer light electrode layer, an electrolyte layer, a catalyst electrode layer, and a supporting substrate, and which is sealed with a sealing material, when the light-scattering layer contacts the outer top surface of the lowermost light electrode layer contacting the conductive substrate and covers the entire remaining light electrode layer, since light that is incident on the transparent substrate and then penetrates through a semiconductor particle layer without a current generation process is reflected by the light-scattering layer, and then performs a current generation process again by reentering the semiconductor particle layer, a photoelectric conversion rate may be increased. Since the lateral side of the lowermost semiconductor particle layer, which is placed closest to the conductive substrate, is not covered, an effective generation area is not reduced, and the effect of the light-scattering layer is maximized, such that generation efficiency may be increased.