METHOD FOR PRODUCING CRYSTALLINE SILICON SOLAR CELL, METHOD FOR PRODUCING SOLAR CELL MODULE, CRYSTALLINE SILICON SOLAR CELL, AND SOLAR CELL MODULE
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United States of America Patent
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Issued Date -
Sep 24, 2015
app pub date -
Sep 30, 2013
filing date -
Oct 2, 2012
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Abandoned
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Abstract
A method for producing a crystalline silicon solar cell with a high conversion efficiency and a precisely machined light-incident surface is provided, including a step of forming a first transparent electrode layer, a step of forming a back electrode layer containing copper as a major ingredient on a substantially entire area of a surface of a second main surface side, and the subsequent insulating step of forming an insulating region to remove a short circuit between at least the first transparent electrode layer of the first main surface side and at least a second transparent electrode layer and the back electrode layer of the second main surface side, irradiating an entire periphery of an outer peripheral part of the first main surface onto a position within 3 mm from an outer peripheral end face of a one conductivity-type single crystalline silicon substrate from the first main surface side.
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