Solar cell system manufacturing method

A solar cell system making method, comprising steps of:

• S11, making a plurality of round P-N junctions, wherein each of the plurality of round P-N junction preforms is made by (a) stacking a P-type silicon layer and a N-type silicon layer on top of each other, and (b) forming a P-N junction near each interface between the P-type silicon layer and the N-type silicon layer;
• S12, cutting the plurality of round P-N junctions into a plurality of arc shaped solar cell preforms and a plurality of rectangle solar cell preforms;
• S13, forming an arc shaped surface by stacking the plurality of arc shaped solar cell preforms along a first direction and forming an electrode layer between each adjacent two of the plurality of arc shaped solar cell preforms, and electrically connecting each adjacent two of the plurality of arc shaped solar cell preforms in series;
• S14, forming a first collection electrode on a first of the plurality of arc shaped solar cell preforms and forming a second collection electrode on a last of the plurality of arc shaped solar cell preforms thereby forming an arc shaped solar cell system comprising a photoreceptive surface on the arc shaped surface and configured to receive incident light beams;
• S15, stacking the plurality of rectangle solar cell preforms on top of each other along a second direction and forming an electrode layer between each adjacent two of the plurality of rectangle solar cell preforms, and electrically connecting each adjacent two of the plurality of rectangle solar cell preforms in series;
• S16, forming a third collection electrode on a first of the plurality of rectangle solar cell preforms and forming a fourth collection electrode on a last of the plurality of rectangle solar cell preforms to form a rectangle preform;
• and
• S17, forming a flat photoreceptive surface with the P-N junction exposed on the flat photoreceptive surface by cutting the rectangle preform along the second direction into a plurality of laminal solar cell systems, the flat photoreceptive surface being parallel to the second direction.