China’s DAS Photo voltaic says it has achieved a world report open-circuit voltage of 730 mV for an n-type primarily based photo voltaic cell. in tunnel oxide passivated contact (TOPCon) cell expertisewith an influence conversion effectivity of 26.24%, based on the Chinese language Academy of Sciences Institute of Electrical Engineering.

The cell is predicated on TOPCon cell expertise and has an space of ​​333.05 cm2. The earlier world report of 724.9mV was reported by the Fraunhofer Institute for Photo voltaic Power Programs in Germany.

“Reaching an open-circuit voltage as excessive as 730mV for DAS Photo voltaic’s TOPCon cells signifies a big breakthrough within the improvement of passivation applied sciences, which has nice significance for the continued enchancment in TOPCon cell effectivity,” mentioned Das Photo voltaic CTO Track Dengyuan.

“DAS Photo voltaic has efficiently developed a brand new sort of emitter layer floor passivation expertise, known as mt-Move, which upgrades its N-type expertise to TOPCon3.0 plus,” mentioned Das. Photo voltaic in an extra assertion. “This mt-Move expertise considerably reduces the emitter recombination present, bringing the passivation impact near the earlier SiO2 / PolySi passivation expertise.”

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