Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Azur Space Solar Power Gmbh

Albert-Ludwigs-Universtät

Rüdiger Löckenhoff

Gerhard Strobl

Wolfgang Koestler

Sascha Van Riesen

Ron Dietrich

The present invention shows a solar cell element comprising a semiconductor substrate layer () with precisely one first doping, a layer structure () which is disposed on the front-side of the substrate layer () and is adjacent to the substrate layer, said layer structure having at least one doping complementary to the first doping, a rear-side metallization () which is disposed on the rear-side of the substrate layer which is situated opposite the layer structure () and is adjacent to the substrate layer, and a first () and a second () front-side metallization, the first front-side metallization () contacting the layer structure () electrically and the second front-side metallization (), electrically insulated from the first front-side metallization and the layer structure (), being disposed on the front-side of the substrate layer adjacent to the substrate layer.

Solar module serially connected in the front

The present invention relates to an arrangement having at least one solar cell, which is formed by a first sequence of differently doped layers () on a substrate (), and at least one bypass diode, which is connected to the solar cell, particularly in a monolithic, series-connected solar module. The arrangement is characterized in that the bypass diode is formed by a second sequence of layers (), which is arranged between the substrate () and the first layer sequence (). With the proposed arrangement monolithic, series-connected solar modules can be formed at a very low loss of active receiving surface, the solar cells of which are protected by bypass diodes.

Arrangement comprising a solar cell and an integrated bypass diode

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Freiburg, Germany

Rüdiger Löckenhoff