Spin Coating Method Deposited Nickel Oxide Thin Films at Various Film Thickness
Abstract
The objective of this research is to study the influence of the film thickness on the optical and electrical characterizations of the prepared NiO thin films. For this; we use the thin films as a nickel Oxide, which has been prepared on the glass substrates by the a spin-coating technique using nickel nitrate hexahydrate (Ni(NO3)2.6H2O) as source materials. The coating process was repeated for 13, 14, 15, 16 and 17 layer times to obtain a good NiO thin film. The optical and electrical characterizations were observed to be dependent for each film thickness. For smeller film thickness the thin films have a high optical transmission (over 88 %) in the visible of the longer of the wavelength higher than 400 nm. The bandgap energy was found to be in the range of 3.94–4.06 eV depending on the film thickness. The lowest value of Urbach energy was 0.182 eV. In the end, the electrical measurements are investigated by the four-point method, the results shows that the good electrical conductivity was found at 171 nm.
Published
2024-07-25
How to Cite
LAKEL, Abdelghani; BENRAMACHE, Said.
Spin Coating Method Deposited Nickel Oxide Thin Films at Various Film Thickness.
Journal of Power Technologies, [S.l.], v. 104, n. 3, p. 201--208, july 2024.
ISSN 2083-4195.
Available at: <https://papers.itc.pw.edu.pl/index.php/JPT/article/view/1660>. Date accessed: 21 dec. 2024.
Issue
Section
Materials Science
Keywords
NiO, Thin films, Spain coater method, polycrystalline structure, Electrical conductivity
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