Fuji Electric Co., Ltd.

Sugao Saito

Hiromitsu Ota

Takashi Yoshida

Yukimi Ichikawa

Takuro Ihara

A transparent second electrode layer laminated over a laminated composite of a solar cell structure is connected to a third electrode layer disposed opposite the substrate via through holes spaced longitudinally and equidistantly apart from each other. The laminated composite and the third electrode layer are respectively segmented by separating grooves into regions involving through holes of a number inversely proportional to that of the series-connected solar cell units. A first electrode layer is connected to the third electrode layer via the through holes of the substrate or via conductors passing over the side thereof in the adjoining region across the separating grooves. The through holes for connected in the first electrode layer with the third electrode layer and the through holes for connecting the second electrode layer with the third electrode layer are formed and arranged equidistantly apart from each other, and the latter though holes which are not needed are removed.

Thin-film solar cell and method for the manufacture thereof

A transparent second electrode layer laminated over a laminated composite of a solar cell structure is connected to a third electrode layer disposed opposite the substrate via through holes spaced longitudinally and equidistantly apart from each other. The laminated composite and the third electrode layer are respectively segmented by separating grooves into regions involving through holes of a number inversely proportional to that of the series-connected solar cell units. A first electrode layer is connected to the third electrode layer via the through holes of the substrate or via conductors passing over the side thereof in the adjoining region across the separating grooves. The through holes for connected in the first electrode layer with the third electrode layer and the through holes for connecting the second electrode layer with the third electrode layer are formed and arranged equidistantly apart from each other, and the latter through holes which are not needed are removed.

Thin-film solar cell array and method of manufacturing same

To reduce power loss in a transparent electrode with a high sheet resistance in a thin-film solar cell that uses an amorphous semiconductor layer, without having to use a complex patterning process. A large number of holes are formed through an insulating substrate, while a third electrode layer with a low sheet resistance is disposed on the rear side of the substrate and a transparent second electrode layer disposed on the light incidence side. The second and third electrode layers are connected to each other via said holes. To build a series-connection structure, an extended portion of the third electrode layer on one cell and extended portions of the first electrode layers on adjoining cells are connected to each other via similar holes formed on the substrate.

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Yokosuka, Japan

Sugao Saito