Recently, the team led by Professor Peng Jun and Professor Zhang Xiaohong from Soochow University, in collaboration with the University of New South Wales in Australia and the Baimahu Laboratory in Zhejiang Province, has achieved a significant breakthrough in the research and development of single-junction perovskite solar cells.
The single-junction perovskite solar cells developed by this team have demonstrated a remarkable improvement in efficiency across different area ranges. The certified steady-state efficiency of the 0.1 cm² cell reached 27.3%, while that of the 1 cm² cell achieved 26.9%. Both figures have set new world records for their respective area ranges and have simultaneously topped the internationally authoritative “Solar Cell Efficiency Tables” (Version 66).
It is understood that the team had previously made several key technological breakthroughs in the field of single-junction perovskite solar cells. In February 2025, the team first elevated the certified steady-state efficiency of small-area single-junction perovskite solar cells to 27%, a result that was successfully featured on the “Best Research-Cell Efficiency Chart” released by the U.S. National Renewable Energy Laboratory.
“Solar Cell Efficiency Tables” (Version 66) specifically highlights that during the process of area expansion in this research, the efficiency loss of the cells was minimal, in stark contrast to previous findings. This breakthrough signifies that the team has successfully overcome the “area-efficiency” contradiction, providing a feasible solution for the industrial application of perovskite photovoltaic technology.
