Optimized amorphous silicon nitride layers for the front side passivation of c-Si PERC solar cellsAsmaa Mohamed Okasha Mohamed Okasha, Bishal Kafle, Benjamin Torda, Christopher Teßmann and Marc HofmannEPJ Photovolt., 11 (2020) 6DOI: https://doi.org/10.1051/epjpv/2020003