Nanjing University, China working on Tandem Solar Cells under the Research team of Professor Mr. Tan Hairen did the latest developments in achieving 26.4% efficiency in all-perovskite tandem solar cells exceeding single-junction perovskite cells for the first time and is comparable with the current maximum efficiency of crystalline silicon cells.
The latest conversion efficiency of the all-perovskite tandem solar cell developed by Professor Mr. Tan Hairen research team reached 26.4%, outperforming the highest certified efficiency of 25.7% for single-junction perovskite cells.
Encapsulated tandem devices retain >90% of initial performance following 600 hours of operation at the maximum power point under one-sun illumination in ambient conditions.
A tandem solar cell contains two or more subcells electrically connected using interconnecting layers (ICLs). The ICL plays a key role in determining the performance and reproducibility of a unit. An effective ICL should be chemically inert, electrically conductive, and optically transparent.
