Red luminescence and UV light generation of europium doped zinc oxide thin films for optoelectronic applicationsMohamed El Jouad, El Mehdi Bouabdalli, Samira Touhtouh, Mohammed Addou, Nadège Ollier and Bouchta SahraouiEur. Phys. J. Appl. Phys., 91 1 (2020) 10501DOI: https://doi.org/10.1051/epjap/2020200133