JinkoSolar introduced it has reached a conversion effectivity of 33.24% of its n-type TOPCon-based perovskite tandem photo voltaic cell, as examined by the Shanghai Institute of Microsystem and Data Expertise, Chinese language Academy of Sciences.
The tandem photo voltaic cell employed Jinko’s n-type high-efficiency monocrystalline TOPCon photo voltaic cell as the underside cell. This conversion effectivity for the perovskite/TOPCon tandem photo voltaic cell was achieved by way of numerous supplies and expertise improvements together with ultra-thin poly-Si passivated contact expertise, novel light-trapping expertise, intermediate recombination layer with excessive mild transmittance and excessive provider mobility, and environment friendly floor passivation expertise utilizing hybrid supplies. This achievement demonstrates the compatibility of TOPCon as a mainstream photo voltaic cell expertise with the next-generation perovskite/silicon tandem cell expertise, breaking the effectivity restrict of single-junction silicon photo voltaic cell.
“This milestone breakthrough as soon as once more highlights JinkoSolar’s willpower to repeatedly push the boundaries by way of sturdy technological innovation capabilities,” stated Dr. Jin Hao, CTO of JinkoSolar. “It additionally lays a strong technical basis for the corporate’s steady improvement. We imagine that, as we proceed to deepen our scientific analysis and expertise, we are going to contribute to constructing a greener and extra sustainable new power construction.”
LONGi reached 33.9% effectivity with its personal silicon-perovskite tandem photo voltaic cell design in November 2023, though it was not TOPCon-specific.
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