Room temperature synthesis and optical properties of SrMoO4 crystallites by w/o microemulsion

SrMoO4 crystallites with varying morphology have been prepared by the chemical reaction of strontium chloride and sodium molybdate in a reverse microemulsion system consisting of water, OP (p-octyl polyethylene glycol phenylether, non-ionic surfactant), 1-pentanol (co-surfactant) and cyclohexane (oil). The resultant powders were characterized in detail by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and photoluminescent spectra techniques (PL), respectively. It was found that SrMoO4 crystallites with different morphologies could be synthesized by the microemulsion process with different aging times. PL spectra showed that the spindle-shape SrMoO4 crystallites with a higher aspect ratio resulted in better photoluminescence property. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.