Hybrid heterojunction solar cell fabrication using a metal layer mask
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United States of America Patent
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May 22, 2012
Grant Date -
Jan 21, 2010
app pub date -
Jul 16, 2009
filing date -
Jul 16, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Embodiments of the invention generally provide a high efficiency solar cell using a novel processing sequence to form a solar cell device. In one embodiment, the methods include forming one or more layers on a backside of a solar cell substrate prior to the texturing process to prevent attack of the backside surface of the substrate. In one embodiment, the one or more layers are a metalized backside contact structure that is formed on the backside of the solar cell substrate. In another embodiment, the one or more layers are a chemical resistant dielectric layer that is formed over the backside of the solar cell substrate.
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