<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Zinc oxide (ZnO) thin films were deposited on Si (1 0 0) and glass substrates by sol-gel spin coating technique. Zinc acetate dihydrate, monoethanolamine and isopropanol were used as the sources for precursor solution and the resulting gel was used for the preparation of ZnO thin films. The films were annealed at different temperatures (100 °C to 500 °C) and the effect of annealing on the structural and optical properties was investigated. X-ray diffraction (XRD) and UV-Vis spectroscopy were used for the analysis of the films. The XRD results indicated the polycrystalline hexagonal structure of the ZnO films with (0 0 2) orientation. The optical properties of the films were studied using UV-Vis spectrophotometer in the wavelength range of 190 – 1100 nm. The optical characterization of the ZnO thin films showed the high transmittance of ~90 % for the films annealed at 400 °C. The films showed the absorbance ~360 – 390 nm and bandgap values of 3.40 – 3.10 eV, depending on the annealing temperature of the films.</p></abstract>

Zinc oxide (ZnO) thin films were deposited on Si (1 0 0) and glass substrates by sol-gel spin coating technique. Zinc acetate dihydrate, monoethanolamine and isopropanol were used as the sources for precursor solution and the resulting gel was used for the preparation of ZnO thin films. The films were annealed at different temperatures (100 °C to 500 °C) and the effect of annealing on the structural and optical properties was investigated. X-ray diffraction (XRD) and UV-Vis spectroscopy were used for the analysis of the films. The XRD results indicated the polycrystalline hexagonal structure of the ZnO films with (0 0 2) orientation. The optical properties of the films were studied using UV-Vis spectrophotometer in the wavelength range of 190 – 1100 nm. The optical characterization of the ZnO thin films showed the high transmittance of ~90 % for the films annealed at 400 °C. The films showed the absorbance ~360 – 390 nm and bandgap values of 3.40 – 3.10 eV, depending on the annealing temperature of the films.

Structural and optical properties of ZnO thin film prepared by sol-gel spin coating

Department of Physics and Astronomy, College of Science

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Zinc oxide (ZnO) thin films were deposited on Si (1 0 0) and glass substrates by sol-gel spin coating technique. Zinc acetate dihydrate, monoethanolamine and...

Structural and optical properties of ZnO thin film prepared by sol-gel spin coating

Published Online: May 08, 2020

Page range: 17 - 22

Received: Apr 15, 2017

Accepted: Mar 17, 2020

DOI: https://doi.org/10.2478/msp-2020-0016

Keywords
ZnO thin films, sol-gel, spin coating, X-ray diffraction, optical properties

© 2020 G Balakrishnan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Structural and optical properties of ZnO thin film prepared by sol-gel spin coating

Published Online: May 08, 2020

Page range: 17 - 22

Received: Apr 15, 2017

Accepted: Mar 17, 2020

DOI: https://doi.org/10.2478/msp-2020-0016

KeywordsZnO thin films, sol-gel, spin coating, X-ray diffraction, optical properties

© 2020 G Balakrishnan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
ZnO thin films, sol-gel, spin coating, X-ray diffraction, optical properties