Telefunken Electronic Gmbh

Telefunken Systemtechnik Gmbh

Helmut Flodl

Klaus-Dieter Rasch

Paul Uebele

A solar cell includes a silicon body with a first anti-reflection layer on its front side. The first anti-reflection layer has elongated window openings which extend parallel to one another. Parallel contact fingers made of metal extend over the first anti-reflection layer at right angles to the window openings. The contact fingers make electrical contact with the silicon body through the window openings. A second anti-reflection layer is deposited on top of the contact fingers and the first anti-reflection layer. The second anti-reflection layer reduces reflection losses at the window openings, in addition to providing further reflection protection where it overlaps the first anti-reflection layer. Highly doped zones can be provided in the silicon body beneath the window openings.

Solar cell

The invention relates to a solar cell module wherein solar cell rows comprising several cells ae arranged overlapping such that in accordance with the invention the butt joints of adjacent solar cell rows are offset in relation to one another, thereby permitting parallel and serial connection within the solar cell module in accordance with the invention.

Solar cell module

A solar cell having a rear side contact and a conduction path system as front side contact. The gist of the invention is that a region of the second conductivity type is disposed on all sides of a semiconductor member of the first conductivity type, and that the rear side contact ohmically contacts the semiconductor member of the first conductivity type by penetrating the region of the second conductivity type.

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Bad Friedrichshall, Germany

Helmut Flodl