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Silver-lean screen-printing can reduce silver use in TOPCon solar cells by 40%

Summary by Pv Magazine International
An international research team has developed a metallization technique for TOPCon solar cells that can reportedly reduce silver usage in the devices' rear side by 85%. The scientists replaced the commonly used Ag fingers with intermittent Ag dashes for contact formation and Ag-free fingers and busbars for electrical conduction. Researchers from the University of New South Wales (UNSW) in Australia and China's metallization paste specialist Chang…
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pv magazine International broke the news in on Thursday, May 8, 2025.
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