JinkoSolar reports 34.82% efficiency for perovskite-silicon tandem solar cell

Chinese solar cell manufacturer JinkoSolar has reported a power conversion efficiency of 34.82% for a perovskite-silicon tandem solar cell, one of the highest figures recorded for the technology. The company announced the result on 19 June 2026 and said it had been certified by the Shanghai Institute of Microsystem and Information Technology (SIMIT) of the Chinese Academy of Sciences. The figure sits just below the 34.85% world record held by rival Longi, reported in April 2025, as covered by trade outlet pv magazine.

A tandem cell stacks two light-absorbing materials instead of one. A perovskite top layer captures higher-energy light, while the silicon layer beneath it captures the lower-energy red and infrared part of the spectrum. Because the pair uses more of the incoming sunlight than silicon alone, tandem cells can pass the practical ceiling of single-junction silicon, whose best certified cells reach about 27%. JinkoSolar itself set a 27.02% world record for a single-junction TOPCon cell in June 2025.

How JinkoSolar’s perovskite-silicon tandem solar cell improved

The new figure edges up from JinkoSolar’s own earlier results. The company reached 34.76% for the same device configuration in December 2025, so the latest certified value adds 0.06 of a percentage point. JinkoSolar attributed the gain to several changes, including a “dual-layer composite passivation contact structure for N-type TOPCon solar cells” and “multidimensional interface passivation,” and called the result “a critical step forward in the industrialization of next-generation perovskite tandem technology.” The company did not disclose further technical detail, pv magazine reported.

The world record for this solar cell type still belongs to Longi, which reached 34.85% in April 2025 with a device developed alongside China’s Soochow University and described in the Nature paper “Efficient perovskite/silicon tandem with asymmetric self-assembly molecule.” The table and chart below place the figures side by side.

Certified solar cell efficiencies as reported by pv magazine (2025-2026). Tandem cells exceed the roughly 27% range of the best single-junction silicon cells.

The gaps between the three tandem cells are small, and a 0.06 to 0.09 point difference between certified champions tells readers more about a close race than about a leap in performance. The harder task is moving these laboratory cells into mass production, where large modules tend to convert less of the sunlight than tiny record cells and where perovskite layers must prove they can last outdoors for years. JinkoSolar framed its result around industrialisation, which signals where the contest is heading next. Winss Solutions has examined why critics question whether renewable energy is unreliable due to intermittency, and higher-efficiency panels matter because they generate more power from the same roof or plot of land.

About JinkoSolar

JinkoSolar was founded in 2006 and is based in Shangrao, in China’s Jiangxi province, with its shares listed on the New York Stock Exchange. It is one of the world’s largest makers of solar modules and a leading developer of TOPCon cell technology, the single-junction design behind its 27.02% record in 2025. The company has been pushing perovskite-silicon tandems as the next step, moving from 34.76% in December 2025 to the 34.82% certified in June 2026.

For wider context on where the sector is heading, Winss Solutions tracks the future of green energy trends and predictions and the role of efficient generation in power systems for sustainable energy. The latest result keeps JinkoSolar within 0.03 of a percentage point of the industry’s best certified tandem cell as the race shifts from the laboratory toward the factory.

Sources: pv magazine; pv magazine; Nature (Longi and Soochow University record cell)

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Evelyne Hoffman

I specialize in sustainability education, curriculum co-creation, and early-stage project strategy for schools and public bodies. Next to this I like a deep dive into educational gaming, and how finances influence our live. When I am not writing, I enjoy hiking in the Black Forest and experimenting with plant-based recipes.