Tan Hairen Science: All perovskite stacked solar modules achieve a breakthrough in efficiency of 21.7%
Date: 2022-05-19Read: 40
Congratulations to Professor Tan Hairen's team at Nanjing University for publishing their latest research findings in Science. The Japanese SAN-EI model represented by our company isXH-50S1 Dual Lamp Hyperspectral Matching Solar SimulatorEffective test results were provided during the research process.
The challenges in manufacturing all perovskite stacked solar cells as components rather than single junction structures include increasing high-quality wide bandgap perovskites and mitigating irreversible degradation caused by halide and metal interdiffusion at interconnect contacts. The team led by Tan Hairen from Nanjing University and Henry J. Snaith from Oxford University systematically adjusted the content of monovalent inorganic cation cesium (Cs) to control the uniformity of large-area wide bandgap perovskite crystals, and introduced a conductive conformal "diffusion barrier" between interconnected sub cells, improving the power conversion efficiency and stability of all perovskite stacked solar modules.Through the efficient and scalable manufacturing technology of all perovskite stacked solar modules, the team led by Tan Hairen from Nanjing University and Henry J. Snaith from Oxford University have obtained a certified PCE of 21.7% for the stacked modules, with a pore area of 20 square centimeters. After continuous operation under simulated sunlight for 500 hours, they still maintain an initial efficiency of 75%.
For stacked solar cells and modules,Under the illumination of a dual lamp simulator (SAN-EI ELECTRIC, XH-50S1),Calibrated reference solar cell (KG-0) at 100 mW cm-2Conduct J-V characteristic testing under high light intensity and finely adjust the spectrum of the simulator to ensure that the spectral mismatch is within 3%.文献信息： Scalable processing for realizing 21.7%-efficient all-perovskite tandem solar modules
Ke Xiao, Yen-Hung Lin, Mei Zhang, Robert D. J. Oliver, Xi Wang, Zhou Liu, Xin Luo, Jia Li, Donny Lai, Haowen Luo, Renxing Lin, Jun Xu, Yi Hou, Henry J. Snaith*, Hairen Tan*
