Method for the manufacture of a solar cell and the resulting solar cell
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United States of America Patent
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Jan 8, 2013
Grant Date -
Jan 21, 2010
app pub date -
Sep 4, 2009
filing date -
Mar 8, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method for the production of a solar cell, a flat aluminium layer is applied to the back of a solar cell substrate. The aluminium is alloyed into the silicon substrate by the effect of the temperature and forms an aluminium BSF. The remaining aluminium that has not been alloyed into the silicon is subsequently removed. The aluminium BSF is transparent to light.
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