The State Key Laboratory of Photovoltaic Photovoltaic Science and Technology announced that, after testing by a third-party authority, the photoelectric conversion rate of a large-area P-type polysilicon solar cell with 156×156mm2 independently researched and developed reached 21.25%, setting a new world record.
In order to prepare a large-scale P-type polycrystalline silicon solar cell for record, Trina Solar integrated its advanced battery backside passivation and surface treatment technology on a high-quality polysilicon substrate. The photoelectric conversion rate of 21.25% of the battery was confirmed by the Fraunhofer ISE test calibration laboratory of the German photovoltaic testing agency. This figure broke the world record of 20.76% of such solar cells created by Trina Solar in November last year.
"I am very pleased with this new achievement of R&D personnel. As far as I know, this is the first time that the global polysilicon battery's photoelectric conversion rate exceeds 21%. It is Trina Solar's continuous innovation and breakthrough in polysilicon materials and battery technology. The results have laid a solid foundation for the development of high-efficiency and low-cost photovoltaic modules in the future." Dr. Feng Zhiqiang, the vice president of Trina Solar and director of the State Key Laboratory of Photovoltaic Science and Technology, said: "Trina Solar insists on innovation and focuses on technology. Continuous optimization and breakthrough of details. Once again, increasing the photoelectric conversion rate of polysilicon cells allows us to reduce the cost of solar power generation and take another step toward becoming an inexpensive target for solar energy at an early date.â€
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