Effect of Calcination under Different Gases on Structural and Optical Properties of Thin Films of Zinc Oxide Prepared by Sol-gel Process

  • Naree Soros Suratthani Rajabhat University
  • Piyatida Prom-on Suratthani Rajabhat University
  • Saowaluk Chutap Suratthani Rajabhat University
  • Narin Sukkree Suratthani Rajabhat University
  • Watcharakorn Srikom Suratthani Rajabhat University
Keywords: ZnO, Sol-Gel, spin coating, calcination


Zinc oxide thin films were prepared using a sol-gel technique with Zinc acetate as the substrate. It was then coated on a sliding glass by means of a rotating coating (1,500 rpm for 30 sec.). Then the Zinc oxide thin film was burned at 500 ° C for 2 hours under different atmospheres (air, nitrogen, and argon) to study the physical and optical properties of Zinc oxide thin films. The study found that Zinc oxide thin film produces good crystallization, only when the Zinc oxide thin film is formed in an air atmosphere. And the Zinc oxide thin film has good optical properties. With a light penetration greater than 90 % in the visible wavelength.