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Characterization of sol-gel derived NiO thin films: Effect of post-heat treatment

Year 2024, Volume: 42 Issue: 4, 1009 - 1015, 01.08.2024

Abstract

Nickel Oxide (NiO) thin films have a wide range of applications in the field of photovoltaics and optoelectronics technology, due to their excellent properties. By modifying the composition and state of the structure with heat treatments, most of the properties of the film are improved. Thus, this study aim to show the behavior of NiO thin films with the post-heat treatment. We prepared thin films of nickel oxide (NiO) by the spray pyrolysis method, deposited on glass substrates and heated to different temperatures (200 °C, 250 °C and 300 °C). The obtained samples were characterized by UV-Visible spectroscopy, contact angle measure-ment and Raman spectroscopy. We found that the transmittance of films increases with the annealing temperature and Urbach energy (disorder) decreases with increasing optics gap and annealing temperature. Also, the contact angle increases with the temperature of the annealing, but the surface remains hydrophilic. Furthermore, the Raman spectrum has shown the presence of the crystalline state and amorphous carbon (graphite).

References

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There are 31 citations in total.

Details

Primary Language English
Subjects Biochemistry and Cell Biology (Other)
Journal Section Research Articles
Authors

Djanette Meriem Blizak 0000-0001-7311-3442

Drifa Brinis This is me 0000-0001-8290-2574

Publication Date August 1, 2024
Submission Date November 4, 2022
Published in Issue Year 2024 Volume: 42 Issue: 4

Cite

Vancouver Meriem Blizak D, Brinis D. Characterization of sol-gel derived NiO thin films: Effect of post-heat treatment. SIGMA. 2024;42(4):1009-15.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/