Nanotechnology and nanomaterials

Structural and optical properties of ZnO thin films prepared by sol–gel method with 1.2 and 1.5 mol/L solution concentrations 

R. Amari1, A. Mahroug1,2 , A. Boukhari1 , B. Deghfel1,2 
1 Department of Physics, Faculty of Sciences, University of Mohamed Boudiaf, 28000 M’sila, Algeria
 2 Laboratory of materials physics and its applications, Department of Physics, Faculty of Sciences, University of Mohamed Boudiaf, 28000 M’sila, Algeria                                                                                                                        E-mail: a.lamari28@gmail.com

  By using a simple sol–gel spin-coating technique,  zinc oxide (ZnO) thin films have been prepared on glass substrates with somewhat higher solution concentrations (1.2 and 1.5 mol/L), by using zinc acetate dehydrate [Zn(CH3CO O)2. 2H2O] as precursor and  isopropanol and monoethanolamine (MEA) as solvent and stabilizer, respectively. The molar ratio of precursor to MEA was 1.0. X-ray diffraction, ultraviolet–visible spectroscopy and photoluminescence (PL)   spectroscopy were employed to study the effect of solution concentrations on the structural and optical  properties of the ZnO thin films. Our results were discussed in details and compared with other available experimental data.

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