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Electrically Conductive Adhesives and the Shingled Array Cell for High Density Modules
Hongsub Jee1, Sooho Lee2, Chaehwan Jeong1
1Applied Optics and Energy R&D Group, Korea Institute of Industrial Technology, Gwangju, 61012, South Korea.
Abstract:
The shingled array of solar cells has the advantages of a larger active area and smaller current density than conventional solar cells. Because the power loss is mainly driven by the decrease in current density, this new method has the benefit of increasing module power with the same installed area as used in other methods. As the electrically conductive adhesive (ECA), CA3556HF was chosen and characterized by analysis of reflectance and sheet resistance. These analyzed data show consistent and relevant results for the cell efficiency of separated and serially connected cells fabricated by means of the shingled array method. We successfully demonstrated the increase of the high density module (HDM) power by 5.1% for a 30 cm×30 cm area and the fill factor also increased by 2% compared with conventional modules.
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