BUFFER LAYER DEPOSITION METHODS FOR GROUP IBIIIAVIA THIN FILM SOLAR CELLS
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United States of America Patent
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Issued Date -
Dec 6, 2012
app pub date -
Jun 6, 2011
filing date -
Jun 6, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides methods for forming a buffer layer for Group IBIIIAVIA solar cells. The buffer layer is formed using chemical bath deposition and the layer is formed in steps. A first buffer layer is formed on the absorber and the first buffer layer is then treated using etching, oxidizing, annealing or some combination thereof. Subsequently a second buffer layer is then positioned on the treated surface. Additional buffer layers can be added following treatment of the previously deposited layer.
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