New contact frame design for minimizing losses due to edge recombination and grid-induced shading |
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Authors: | D Knig G Ebest |
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Affiliation: | Chair of Electronic Devices, Faculty of Electrical Engineering & Information Technology, Technical University of Chemnitz, Reichenhainer Str. 70/536, D-09107, Chemnitz, Germany |
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Abstract: | Edge recombination and grid shading are two loss mechanisms which decrease solar cell efficiency. We introduce a new way for decreasing both significantly by a novel contact frame design which runs along the edge on the surface of a solar cell. No additional processing is necessary for preparing the contact frame. For a 100 cm2 commercial c-Silicon (Si) solar cell the efficiency increased from 16.18% to 16.83% at 1 Sun (AM 1.5) as estimated by careful device simulation. |
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Keywords: | Edge recombination Shading losses Contact grid |
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