Semiconducting properties of Tm doped Yb-ZnO films by spray pyrolysisImane Chaki, Azzam Belayachi, Toufik El Bahraoui, Mohamed Regragui and Mohamed Abd-LefdilEur. Phys. J. Appl. Phys., 68 3 (2014) 30301DOI: https://doi.org/10.1051/epjap/2014140371
