Abstract: The specification discloses a photovoltaic device comprising a transparent, electrically insulating substrate, a plurality of photoelectric conversion elements using thin-layer technology, disposed as a stack on the substrate, these photoelectric conversion elements comprising a layer of material forming an opaque electrode traversed by cuts or openings, the latter advantageously exhibiting a groove shape which is elongate in a transverse direction of the cell and forming between them bands of material which are favorably oriented in the direction of the photogenerated current lines. A reinforced insulation of the cuts by a protective shoulder between layers may be provided. The invention permits partial-transparency solar cells or modules to be obtained.

Abstract: Panel structure suitable for forming a photovoltaic device, comprising an electrically insulating transparent support substrate; photosensitive elements constituted by thin layers stacked on a first face of the said substrate and comprising an opaque electrically conducting layer, openings being formed through this opaque layer in order to allow a portion of the light received by the structure to traverse the said photosensitive elements; an electrically insulating transparent potting layer covering the same photoactive conversion elements; and, over the top, a protecting plate. This plate may be curved. In this case, the potting layer will be constituted by an adhesive sheet.