Chinese PV module manufacturer JinkoSolar announced it achieved a power conversion efficiency of 34.82% for a perovskite-silicon tandem solar cell.

The company said the results have been certified by China’s Shanghai Institute of Microsystem and Information Technology of the Chinese Academy of Sciences. In its previous attempts, JinkoSolar achieved a cell efficiency of 34.76% for the same device configuration.

“This efficiency breakthrough is attributed to JinkoSolar’s innovations in multiple core technologies, including the dual-layer composite passivation contact structure for N-type TOPCon cells, multidimensional interface passivation technology, gradient crystallization kinetics control strategies, and enhanced optical coupling and light management technologies,” the company said in a statement. “This milestone marks a critical step forward in the industrialization of next-generation perovskite tandem technology.”

No more technical details on the cell improvement were disclosed.

Chinese manufacturer Longi holds the world record for perovskite-tandem solar cell efficiency, achieving 34.85% efficiency in April 2025. This cell device was developed in partnership with China’s Soochow University and was described in the paper “Efficient perovskite/silicon tandem with asymmetric self-assembly molecule,” which was recently published in nature.