METHOD FOR PRODUCING A SOLAR CELL
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United States of America Patent
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Issued Date -
Apr 11, 2013
app pub date -
Feb 16, 2011
filing date -
Apr 9, 2010
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Abandoned
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Abstract
A method for producing a solar cell from a silicon substrate, which has a first main surface, used in normal application as an incident light side and a second main surface, used as the back surface, having a passivating layer on the second main surface, includes the steps: applying an oxygen-containing layer onto the second main surface of the silicon substrate, and heating the silicon substrate to a temperature of at least 800° C. to densify the oxide-containing layer and for the oxidation of the boundary surface between the oxide-containing layer and the second main surface of the silicon substrate to form a thermal oxide, an oxygen source giving off oxygen for the oxidation.
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