Solar cell and method for fabricating the same
A solar cell and manufacturing method technology, which is applied in the directions of manufacturing tools, final product manufacturing, sustainable manufacturing/processing, etc., can solve the problems of increasing the angle of the top of the pyramid structure, increasing the reflectivity, and decreasing the photocurrent, and achieves a simple manufacturing method. , Improve coating problems, easy to control effect
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[0090] After the pyramid structure is formed on the silicon substrate, the silicon substrate is then subjected to a laser treatment process. The parameters of the laser treatment process are as follows:
[0091] Laser wavelength: 532nm
[0092] Focus height: -14.6mm
[0093] Beam size: 50 um
[0094] Energy density: 2J / m 2 (Experimental Example 1), 2.25J / m 2 (Experimental Example 2), 2.5J / m 2 (Experimental example 3)
[0095] Stage speed: 100_mm / sec
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