SOLAR CELL
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United States of America Patent
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app pub date -
Jun 30, 2015
filing date -
Jul 1, 2014
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Abstract
A solar cell includes a front side for light incidence, an opposite back side, a crystalline semiconductor substrate of a first or second conductivity type, a front side passivating region with a passivating layer and a conductive layer of the first type, a back side passivating region with a passivating layer and a conductive layer of the second type, a front side contact with one front side conductive material and front side electrical contacts on the front side conductive material, a front side light coupling layer on the front side, a back side contact opposite the front side contact and formed by back side conductive material and a back side electrical contact thereon. The front side has lower light absorption and better antireflective property. The front side conductive material is thinner in regions between and/or besides front side electrical contacts than in regions below front side electrical contacts.
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