Market Trends, Materials & Manufacturing Processes

go PV 4. Solar Cell Interconnections Silicon Heterojunction solar cells Conventional soldering processes require high temperatures need to find a solution for SHJ → Low temperature process → by using: → ribbons are "soldered" Busbar technology → not mainstream Electrically Conductive Adhesives (ECA) • MWT/SWCT. Challenges: Use of more silver. EPFL 5 Busbars Multiwire SWCT A. Shah, Solar cells and modules (2020) More expensive. • Need to adapt stringers in commercial manufacturing processes. GoPV Project | SUMMER SCHOOL 19 PV SYSTEMS TECHNOLOGIES AND DESIGN

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