Abstract
Structural and optical properties of MgxZn1-xO (x = 0.05) films grown on microscopic glass substrates by sol-gel technique
were investigated. Zinc acetate dihydrate, Magnesium acetate as starting precursors and ethanol as a solvent were used to
prepare the gel solution. These deposited films were annealed at three different temperatures and characterized by X-ray
Diffractometer (XRD), Scanning Electron Microscopy (SEM) and UV-VIS Spectrophotometer for studying structural and
optical properties. Energy dispersive analysis by X-ray (EDAX) was used to determine incorporation of Mg content into ZnO.
EDAX spectra clearly show the incorporation of Mg into the ZnO films. XRD spectrum reveals that the deposited Mg doped
ZnO films were polycrystalline in nature. Crystallinity of these films was found to be increase with increase in post annealing
temperature. Optical band gap of MgxZn1-xO annealed films was found to be increased from 3.33 to 3.37eV as estimated
from both transmission spectra and the absorption coefficients. The band gap was observed to be blue shifted with
increasing annealing temperature.
Keywords
Post annealing, MgxZn1-xO, Sol gel, Structural properties, SEM, UV-VIS, EDAX, XRD.
Citation
B. K. SONAWANE, M. P. BHOLE, D. S. PATIL, Influence of post annealing on the structural and optical properties of MgxZn1-xO films, Optoelectronics and Advanced Materials - Rapid Communications, 2, 11, November 2008, pp.714-718 (2008).
Submitted at: Sept. 7, 2008
Accepted at: Oct. 30, 2008