Comparative study on thermally evaporated and solution processed cathode modifying layers in organic solar cellsShang Feng, Zichen Liu, Hailiang Zhao, Qingqing Yang, Jidong Zhang and Dashan QinEur. Phys. J. Appl. Phys., 97 (2022) 55DOI: https://doi.org/10.1051/epjap/2022220143