Germanium solar cell and method for the production thereof
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United States of America Patent
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Mar 4, 2014
Grant Date -
Sep 21, 2006
app pub date -
Jan 26, 2006
filing date -
May 7, 2003
priority date (Note) -
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Abstract
A method is disclosed for passivating and contacting a surface of a germanium substrate. A passivation layer of amorphous silicon material is formed on the germanium surface. A contact layer of metal, e.g., aluminum, is then formed on the passivation layer. The structure is heated so that the germanium surface makes contact with the contact layer. The aluminum contact layer can be configured for use as a mirroring surface for the back surface of the device. Thus, a passivated germanium surface is disclosed, as well as a solar cell comprising such a structure.
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