<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The physical properties of pure CuO and Pb doped CuO thin films, deposited on glass substrates by a sol-gel method, were investigated. Structural analysis revealed the polycrystalline nature of the pure CuO and Pb:CuO composite films with a monoclinic structure, the crystallite size decreased and ranged from 36.78 nm to around 21.5 nm. The SEM images of the CuO thin films showed that the Pb doping concentration affects the surface morphology of the Pb:CuO composites. The absorbance of the Pb:CuO composites is higher than that of the undoped CuO thin films. The optical band gap energies of undoped CuO and Pb doped CuO thin films were estimated to 1.9 (pure), 2.17(5%) and 2.74 (7%)eV, and found that the band gap energy (E<sub>g</sub>) increases with the Pb concentration. This blue shift is due to the quantum confinement induced by the reduction in the size of the crystallites.</p>
</abstract>

The physical properties of pure CuO and Pb doped CuO thin films, deposited on glass substrates by a sol-gel method, were investigated. Structural analysis revealed the polycrystalline nature of the pure CuO and Pb:CuO composite films with a monoclinic structure, the crystallite size decreased and ranged from 36.78 nm to around 21.5 nm. The SEM images of the CuO thin films showed that the Pb doping concentration affects the surface morphology of the Pb:CuO composites. The absorbance of the Pb:CuO composites is higher than that of the undoped CuO thin films. The optical band gap energies of undoped CuO and Pb doped CuO thin films were estimated to 1.9 (pure), 2.17(5%) and 2.74 (7%)eV, and found that the band gap energy (Eg) increases with the Pb concentration. This blue shift is due to the quantum confinement induced by the reduction in the size of the crystallites.

Pb-Doped CuO Thin Films Synthetized by Sol-Gel Method

Laboratory of Materials and Sustainable Development

University of Bouira, Faculty of Sciences and Applied Sciences

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Pb-Doped CuO Thin Films Synthetized by Sol-Gel Method"}

The physical properties of pure CuO and Pb doped CuO thin films, deposited on glass substrates by a sol-gel method, were investigated. Structural analysis...

Pb-Doped CuO Thin Films Synthetized by Sol-Gel Method

Publié en ligne: 08 oct. 2022

Pages: 5 - 13

DOI: https://doi.org/10.2478/adms-2022-0009

Mots clés
CuO, Pb, physical properties, sol-gel, thin films

© 2022 Dalila Tabli et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Pb-Doped CuO Thin Films Synthetized by Sol-Gel Method

Publié en ligne: 08 oct. 2022

Pages: 5 - 13

DOI: https://doi.org/10.2478/adms-2022-0009

Mots clésCuO, Pb, physical properties, sol-gel, thin films

© 2022 Dalila Tabli et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
CuO, Pb, physical properties, sol-gel, thin films