SYNTHESIS OF ZnO:Mg NANOCOMPOSITE BY PULSED LASER ABLATION IN LIQUID

ZnO:Mg nanocomposite formation by two-step laser ablation in deionized water is analyzed. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), UV-Vis spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis were employed to obtain infrared spectra, crystalline structures, optical absorption spectra, morphology and spatial composition of the prepared nanocomposite. The FTIR result shows that bonds at similar to 480 cm(-1) and 900 cm(-1) correspond to Zn-O and Mg-O stretching modes. The XRD pattern observed the hexagonal wurtzite of ZnMgO phase at 2 theta = 34: 31 degrees and 34.76 degrees. SEM image shows a flower-like hierarchical structure with a full array about 2 mu m. The absorption spectra demonstrate that a band gap of nanocomposite increases as the Mg content increases.