Facile combustion synthesis and photoluminescence properties of Ce3+ doped Sr2La8(SiO4)6O2 phosphors

The Sr2La8(SiO4)(6)O-2:Ce3+-powder phosphor with apatite structure has been successfully synthesized via a facile route of sal-combustion technique. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and photoluminescence (PL) spectroscopy were used to characterize the asprepared samples. The Sr2La8(SiO4)(6)O-2:Ce3+ phosphor was composed of particles with average sizes range about 300 nm. The phosphor exhibited an absorption ranging from 220 to 390 nm in ultraviolet range and a broad blue-violet emission band peaked at 403 nm with a CIE coordinates of (0.167, 0.028). The concentration quenching mechanism was also determined to be dipole-dipole interaction. (C) 2015 Elsevier B.V. All rights reserved.