Patent ID: 7964791

Claim:
A chalcopyrite solar cell, wherein at least a first electrode layer, a P-type light absorbing layer made of a chalcopyrite compound, a buffer layer, and a transparent n-type second electrode layer are stacked on an insulative substrate containing mica, said solar cell is divided into unit cells by disposing: first scribe portions which linearly divide said first electrode layer; second scribe portions configured by through holes which penetrate from said insulative substrate to a layer that is positioned immediately below said second electrode layer; and third scribe portions which divide said second electrode layer, said first and second electrode layers of adjacent unit cells are electrically connected to each other by existence of a portion on a lower end face of said second electrode layer, said portion extending to reach said first electrode layer along inner walls of said second scribe portions, and said third scribe portions have linear parts and curved parts, said linear parts are disposed in parallel to said first scribe portions, and said curved parts are disposed in a semicircular manner so as to circumvent said second scribe portions.