Chinese solar manufacturer JinkoSolar has achieved 23.53% conversion efficiency for an n-type monocrystalline solar PV module based on its TOPCon mono cell technology, for which a record efficiency of 25.25% was announced in late May.

The result has been confirmed by Germany's TüV Rheinland and beats the company's previous record of 23.1% set in January 2021.

“The module's breakthrough performance was the result of adopting JinkoSolar's cutting-edge TOPCon cell technology fused with a new-type of welding and packaging technology,” the manufacturer said in a statement. “The module design not only reduces the internal resistance loss of the module, but improves power efficiency and module appearance.”

A JinkoSolar manufacturing facility in China. Image: JinkoSolar

In January 2020, Jinko said it was able to improve the panel performance by applying a new anti-reflection coating and advanced metallization technologies. New Tiling Ribbon (TR) technology was also incorporated into the cell design, which eliminates any inter-cell gap. At the time, the panel power conversion efficiency was 22.39%.

The solar module relies on solar cells featuring a 267.72cm2 monocrystalline silicon substrate grown using the Czochralski method.