China’s DAS Photo voltaic says it has achieved a world document open-circuit voltage of 730 mV for an n-type primarily based photo voltaic cell. in tunnel oxide passivated contact (TOPCon) cell know-howwith an influence conversion effectivity of 26.24%, in keeping with the Chinese language Academy of Sciences Institute of Electrical Engineering.
The cell relies on TOPCon cell know-how and has an space of 333.05 cm2. The earlier world document of 724.9mV was reported by the Fraunhofer Institute for Photo voltaic Power Programs in Germany.
“Attaining 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 Music Dengyuan.
“DAS Photo voltaic has efficiently developed a brand new kind of emitter layer floor passivation know-how, known as mt-Cross, which upgrades its N-type know-how to TOPCon3.0 plus,” mentioned Das. Photo voltaic in a further assertion. “This mt-Cross know-how considerably reduces the emitter recombination present, bringing the passivation impact near the earlier SiO2 / PolySi passivation know-how.”
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