METHOD OF FABRICATING A DIFFERENTIAL DOPED SOLAR CELL
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United States of America Patent
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app pub date -
Apr 16, 2013
filing date -
Dec 22, 2010
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Abstract
A method of fabricating a differential doped solar cell is provided. The method comprises the steps of (a) providing a light doped semiconductor substrate; (b) forming a heavy doped layer having the same type of dopant used in step (a) on a front surface of the semiconductor substrate; and (c) forming an emitter layer having a different type of dopant used in step (a) on a surface of the heavy doped layer to constitute a p-n junction with the heavy doped layer.
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