Patent ID: 8115094

Claim:
A photovoltaic apparatus comprising: a substrate having an insulating surface; a first substrate electrode and a second substrate electrode formed on said insulating surface of said substrate and isolated from each other by a first groove; a first photoelectric conversion portion so formed as to cover said first substrate electrode and said second substrate electrode; a second photoelectric conversion portion formed on the surface of said first photoelectric conversion portion through a conductive intermediate layer; a first back electrode and a second back electrode, formed on the surface of said second photoelectric conversion portion, corresponding to said first substrate electrode and said second substrate electrode respectively; a connecting passage portion constituting a groove for electrically connecting said first substrate electrode and said second back electrode, provided at a prescribed interval from the side surface of said intermediate layer so as not to expose the side surface of the intermediate layer; and a back electrode separation groove for electrically isolating said first back electrode and said second back electrode from each other, provided at a prescribed interval from said connecting passage portion, wherein said back electrode separation groove exposes the surface of said first substrate electrode so as not to expose the side surface of said intermediate layer.