Chinese language photo voltaic module producer JinkoSolar mentioned it has achieved a 33.24% energy conversion effectivity for a perovskite-silicon tandem photo voltaic cell primarily based on n-type wafers.
The corporate mentioned the outcomes have been licensed by the Shanghai Institute of Microsystem and Data Expertise below the CAS. In its earlier makes an attempt, JinkoSolar achieved a cell effectivity of 32.33% for a similar gadget configuration.
“This breakthrough in conversion effectivity for the perovskite/TOPCon tandem photo voltaic cell has been achieved by 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 service mobility, and environment friendly floor passivation expertise utilizing hybrid supplies,” the producer mentioned, with out offering any extra technical particulars.
Chinese language producer Longi holds the world report for perovskite-tandem photo voltaic cell effectivity, reaching 33.9% effectivity in November 2023. A couple of months earlier, Saudi Arabia’s King Abdullah College of Science and Expertise (KAUST) introduced a perovskite-silicon tandem gadget with an effectivity of 33.7%.
Researchers from Germany’s Fraunhofer Institute for Photo voltaic Vitality Methods (Fraunhofer ISE) not too long ago mentioned that the sensible energy conversion effectivity potential of perovskite-silicon tandem photo voltaic cells may attain as much as 39.5%. Researchers mentioned exceeding this effectivity threshold requires a change in cell structure, changing buckminsterfullerene (C60) with a extra clear electron transport layer, and discovering extra clear alternate options to indium tin oxide (ITO) layers.
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