Preparation and optical characterization of Eu3+-doped CaTiO3 perovskite powders

► Seven vibration modes related to Eu3+ existed in high-energy region of Raman spectra. ► Band edge of CaTiO3:Eu3+ shifted to the higher-energy with increasing Eu3+content. ► Four weak absorption peaks related to the optical transitions in Eu3+ was observed. ► Emission transitions from the 5DJ states to the 7FJ states were observed.