Chinese researchers have developed a biomass lignin-based silver paste for HJT solar cells that reduces reliance on petroleum-based resins and improves electrical performance. The optimized paste increased solar cell efficiency from 25.01% to 25.96% while improving printability, adhesion, and conductivity.
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https://www.pv-magazine.com/2026/10/07/heterojunction-solar-cell-built-with-biomass-lignin-based-silver-paste-achieves-25-96-efficiency/
