Optical Absorption Coefficient on-center donor impurity in a spherical core/shell quantum dotsSafae M'zerd, M. El Haouari, E. Feddi, M. E. Mora-Ramos, A. Jorio and I. ZorkaniMATEC Web Conf., 330 (2020) 01041DOI: https://doi.org/10.1051/matecconf/202033001041