Current Flow Mechanisms and Photoelectric Properties of Solar Cells Based on p-CdTe-n-CdS and p-CdTe-n-CdSe Heterostructures with Deep Impurity LevelsSalim Otajonov, Ravshanbek Ergashev and Qodir BotirovE3S Web Conf., 649 (2025) 01003DOI: https://doi.org/10.1051/e3sconf/202564901003