Dasun will also actively deploy disruptive PVK/HJT tandem technology to further break through the imaginary margin of photovoltaic cell conversion efficiency, and is expected to achieve mass production conversion efficiency of 26.5-27.5% in 2024-2025. PVK/HJT tandem is also the only technology that can achieve >30% efficiency  in the future.

On the basis of the existing silicon process, using the equipment that has been invested, only the simple process of perovskite is added to prepare PVK/HJT tandem cell, and the efficiency can reach more than 33%; The process and equipment can be seamlessly connected, which is more conducive to the upgrade of silicon cell production lines.

Dasun has developed a highly efficient 1.68eV bandgap PVK cell with an open circuit voltage of 1.28eV; in addition, the company is also laying out core processes and materials to further tap the potential of PVK/HJT tandem technology.