Since October 2023, a new international project of Assoc. Prof. Tomáš Homola from CEPLANT and the Plasma Nanotechnologies and Bioapplications research group of the Department of Plasma Physics and Technology is ongoing. The project, "Beyond 27% perovskite solar cells: A deep study based on in-situ charge dynamics and crystal growth kinetics," is funded by the Ministry of Education, Youth and Sports of the Czech Republic under the V4+Korea call. Our researchers will cooperate with the Institute of Physics of the CAS, the Slovak Academy of Sciences, the University of Szeged, Hungary, and Hanyang University, South Korea. The main objective is to prepare high-efficiency and stable solar cells and enable their commercial use. This research will contribute to the progress of perovskite optoelectronics, such as LEDs and photodetectors. The project will end in September 2026.