Assessing the long-term stability of laser enhanced contact optimization (LECO) treated PERC cells in PV modules by extended indoor and outdoor durability testsEve Krassowski, Bengt Jaeckel, Matthias Pander, David Daßler and Stephanie MalikEPJ Photovolt., 14 (2023) 13DOI: https://doi.org/10.1051/epjpv/2023004