Z. Naturforsch. 68a, 668 – 676
Solubility Limit of Sol–Gel Grown Nano Zn1−xMgxO Through Charge Density Distribution
1 Department of Physics, The Madura College, Madurai 625 011, India
2 Bahcesehir University, Faculty of Arts and Sciences, Besiktas - 34349, Istanbul, Turkey
Received March 14, 2013 / revised June 13, 2013 / published online July 31, 2013
The mixed oxides Zn1−xMgxO were prepared as polycrystalline powders with various compositions (x = 0.02, 0.04, 0.05, and 0.10) using sol–gel technique. X-ray diffractometer (XRD) was used to characterize the powders for structural and electronic properties. X-ray diffraction analysis reveals that all the prepared samples exhibit the single wurtzite phase of zinc oxide (ZnO), and magnesium-doping does not induce any secondary phase in the samples. The Bragg peak positions in the XRD patterns are found to be shifted towards higher 2θ values with more addition of magnesium in the zinc oxide lattice. Magnesium addition in the zinc oxide lattice is found to enhance the mid bond electron density distribution up to x = 0.05 and then decrease for x = 0.10. Evidence
of host lattice as well as interstitial addition of Mg2+ ions has been realized for x = 0.10, through electron density analysis.
Key words: Oxides; X-Ray Diffraction; Sol–Gel; Structural Properties; Electronic Properties.