Thin Film of Solar Battery Structure, Thin Film of Solar Array and Manufacturing Method Thereof
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United States of America Patent
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Issued Date -
Feb 16, 2012
app pub date -
Apr 14, 2010
filing date -
Apr 15, 2009
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Abandoned
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Abstract
The present invention proposes a thin-film solar cell structure, a method for manufacturing the same and a thin-film solar cell array. The method for manufacturing thin-film solar cell structures comprises: forming at least two first trenches through a first surface into said semiconductor substrate, forming at least one second trench through a second surface into said semiconductor substrate, said second trench located between two neighboring said first trenches; forming a first structure on sidewalls of each of said first trenches; to forming a second structure on sidewalls of each of said second trench; and cutting or stretching said semiconductor substrate to form thin-film solar cell structures. The distance between the electrodes can be effectively shortened through the present invention such that the recombination rate between the electrons and the holes can be reduced and the bulk recombination current and the surface recombination current can be reduced to achieve the objective of improving power generation efficiency. The thin-film solar cell structure and the method for manufacturing the same proposed in the present invention can also save semiconductor material and reduce production cost.
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