ZnO/MgO Nanocomposites Generated from Alcoholic Solutions

A. N. Baranov^a, O. O. Kapitanova^b, G. N. Panin^c, and T. V. Kang^d

^a Chemistry Faculty, Moscow State University, Moscow, 119992 Russia

^b Materials Science Faculty, Moscow State University, Moscow, 119992 Russia

^c Institute of Microelectronics Technology, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

^d Quantum-Functional Semiconductors Research Center, Dongguk University, Seoul, Korea Republic

Received June 28, 2008

Abstract—A process was proposed for the synthesis of ZnO/MgO nanocomposites from alcoholic solutions
by means or the consecutive precipitation of coprecipitation of alcoholic solutions of zinc acetate and magne-
sium with an alkali solution followed by annealing in the range 400-500°C. X-ray powder diffraction showed
crystalline ZnO and MgO phases in the resulting composite. Zinc oxide particle sizes in the composite with
magnesium oxide were determined by transmission electron microscopy and from X-ray diffraction peak
broadening. The zinc oxide nanoparticle size was weakly affected by the molar ratio of zinc to magnesium and
the concentration of the precipitated component. The ZnO exciton peak in cathodoluminescence spectra for
nanocomposites synthesized at low temperatures (400 and 500°C) shifted toward the UV. At 600°C or higher,
Mg_{1 x} Zn_x O solid solution was generated, as evidenced by X-ray diffraction and cathodoluminescence data.

DOI: 10.1134/S0036023608090040

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.