Synthesis, characterization and optical study of CaYAl3O7: Eu3+ phosphors for lighting application

CaYAl3O7: Eu3+ phosphor sample is synthesized through solid state method. The structural property of synthesized material is analyzed by using XRD patterns. The AFM image analysis shows the topography of samples with formation of nano-structure and spherical shape. The optical property of a sample is monitored by using 260 nm excitation sources. The dominant peak of red hue is found at 620 nm due to 5D0 →7F2 manifold. The stability of samples is investigated for two different conditions by measuring photoluminescence emission spectra and time resolved spectroscopy. The CIE color co-ordinate diagram shows the emission of light in pure red region thus it may be potential candidate for single light emitting source in red regime.