Synthesis and optical properties of red emitting Eu doped CaZrO3 phosphor

Eu³⁺ activated Ca_1−xEu_xZrO₃ (x = 0.01–0.05) phosphor with perovskite structure has been synthesized by sol–gel combustion method. The structure, morphology and optical properties of materials were characterized by X-ray diffraction, scanning electron microscopy and fluorescence spectrometry. The XRD results indicate that crystals of CaZrO₃:Eu³⁺ belongs to orthorhombic perovskite structure. The phosphors can be effectively excited by UV light and the emission spectra results indicate that red luminescence of CaZrO₃:Eu³⁺ due to electric dipole transition ⁵D₀ → ⁷F₂ at 616 nm is dominant. Thus, these prepared phosphors show remarkable luminescent properties which find applications in display devices.