Wednesday, July 30, 2025

High-temperature co-annealing step could cut TOPCon cell costs

NewsUS NewsHigh-temperature co-annealing step could cut TOPCon cell costs

Researchers at the Ecole Polytechnique Fédérale de Lausanne (EPFL) have proposed combining the two high-temperature steps used in producing tunnel oxide passivated contact (TOPCon) solar cells into a single co-annealing process. Initial results show promising outcomes in boron concentration, passivation quality, and contact resistivity…

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