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Synthesis and Characterization o Un-Doped and Copper Doped Nickel Oxide Thin Films Cover

Synthesis and Characterization o Un-Doped and Copper Doped Nickel Oxide Thin Films

Open Access
|Dec 2024

Abstract

In this research, the effect copper on the structural, morphological, optical, and electrical properties of nickel oxide thin films was studied at different copper concentrations. Thin transparent films of nickel oxide (NiO) doped with copper (Cu) were deposited on glass substrates at a temperature of 400 °C using the spray pyrolysis technique. The structural study showed that all the prepared polycrystalline films had a cubic structure with a preferential orientation along (111). Copper was well integrated into the host lattice without changing the structure. SEM images showed that the films were well adhered with a wrinkled network structure. The optical band gap ranges from 3.70 eV to 3.50 eV, and the Urbach energy, which ranges from 0.34 eV to 0.5 eV, has also been discussed. The highest conductivity value of 6.23 × 10⁻³ (Ω·cm)⁻¹ was found at a copper concentration of 2 %.

DOI: https://doi.org/10.2478/awutp-2024-0014 | Journal eISSN: 2784-1057 | Journal ISSN: 1224-9718
Language: English
Page range: 229 - 240
Submitted on: Mar 18, 2024
Accepted on: Jul 8, 2024
Published on: Dec 12, 2024
Published by: West University of Timisoara
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2024 Saliha Bouaicha, Okba Belahssen, Hanane Meddas, Samira Zermane, Lamia Darsouni, published by West University of Timisoara
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.