Structure and site selective luminescence of sol-gel derived Eu:Sr2SiO4

► Characterization of Eu3+:Sr2SiO4 samples by XRD, SEM, AFM and PL techniques. ► Optimization of various parameters for maximum luminescence intensity. ► Evidence for the presence of two rare-earth ion sites in the matrix. ► Evaluation of Judd-Ofelt intensity parameters for the two species. ► Evaluation of CIE indices and comparison with commercial phosphor.