Patent ID: 8581095
Filing Date: 2013-11-12
Classification: H01G,Y02E

Abstract:
1. A dye-sensitive solar cell comprising a photoelectrode comprising a conductive substrate and a semiconductor layer formed on the conductive substrate, the semiconductor layer being formed of semiconductor particles, the semiconductor layer having a plurality of layers, the plurality of layers being different in an average particle diameter of semiconductor particles from one another, a distal layer of the plurality of layers, placed at a location farther from the substrate, covering 20% or more of side faces of a proximal layer of the plurality of layers, placed at a location closer to the substrate, wherein the side faces of the proximal layer and side faces of the distal layer are tilted with regards to a direction perpendicular to a principal face of the conductive substrate, the proximal layer and the distal layer absorb a sensitizing dye thereon, the sensitizing dye, functioning as a photosensitizer, transferring an electron to the semiconductor particles of the proximal and the distal layers by optical energy, and the distal layer and the conductive substrate contact each other so as to form a contact surface.