ph b

niv y on ty, J form e 10 Pec sis rang emission scanning electron microscopy, and Fourier transform infrared spectroscopy. Luminescent properties of CeO2:Eu 3+ films were growth of large area films. Furthermore, this method has been photoluminescent host material. Under such a hypothesis, Applied Surface Science 254 (CeO2:Er materials have already been investigated to exhibit excellent upcovnersion luminescent properties [28]. In this study, CeO2 and CeO2:Eu films were prepared by a simple Pechini sol–gel process and dip-coating method. Hig