Single crystalline silicon solar cell
A technology of solar cells and monocrystalline silicon, which is applied in the field of solar cells, can solve problems affecting carrier collection efficiency, achieve the effects of shortening the actual transmission distance, improving battery efficiency, and shortening the transmission distance
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Embodiment 1
[0024] Such as figure 2 As shown, the bases 1 and 2 of the four sides of the bottom of the pyramid structure form an angle of about 45 degrees with the edge 3 of the silicon wafer; the electrode grid lines 4 are parallel to one set of bases 2 among the four sides of the bottom of the pyramid structure, and perpendicular to the other set of bases 1 . The electrode grid lines 4 are straight lines.
Embodiment 2
[0026] Such as image 3 As shown, one group of bases 1 in the four sides of the bottom of the pyramid structure is parallel to the edge 3 of the silicon wafer, and the other group of bases 2 is perpendicular to the edge 3 of the silicon wafer; the electrode grid line 4 is parallel to a group of bases 1 in the four sides of the bottom of the pyramid structure, It is perpendicular to the bottom edge 2 of another group, that is, the electrode grid line 4 is parallel to the edge 3 of the silicon wafer. The electrode grid lines 4 are straight lines.
[0027] Above embodiment does not represent that electrode grid line can only be straight line, in fact electrode grid line also can be arc or zigzag line among the present invention, as long as everywhere tangent line on electrode grid line and one side in the bottom surface four sides of certain pyramid structure The included angle is 0-10 degrees or 80-90 degrees.
[0028]
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