Science Daily July 14, 2022
Researchers in Germany have developed a prototype for fully scalable all-perovskite tandem solar modules which have an efficiency of up to 19.1 percent with an aperture area of 12.25 square centimeters. The improved efficiency was realized with optimized light paths, high-throughput laser scribing, and the use of established industrial coating methods. Perovskite solar cells with a tunable band gap are ideal tandem partners for solar cells made of other materials and for all-perovskite tandem solar cells. They were able to scale up individual perovskite cells with an efficiency of up to 23.5 percent .They feature low-cost production, solution-based processing methods, mechanical flexibility, and the freedom to combine cells with different perovskite band gaps. The three key innovations of the work are: optimizing the light path and reducing reflections in the solar cell architecture, implementing an efficient layout for tandem solar modules, and using established industrial coating processes…read more. Open Access TECHNICAL ARTICLE
Design and performance of all-perovskite tandem solar cells and modules. Credit: Nature Energy (2022)Â