Pb-doped cuo thin films synthetized by sol-gel method

• Autorzy: Tabli Dalila , Touka Nassim , Baddari Kamel , Selmi Nourddine

Identyfikatory

DOI

10.2478/adms-2022-0009

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

CuO; Pb; physical properties; sol-gel; thin films

PL

CuO; Pb; właściwości fizyczne; zol-żel; cienkie warstwy

• Wydawca: Politechnika Gdańska
• Czasopismo: Advances in Materials Science
• Rocznik: 2022
• Tom: Vol. 22, nr 3(73)
• Strony: 5--13
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Tabli Dalila

• Laboratory of Materials and Sustainable Development, University of Bouira, Faculty of Sciences and Applied Sciences, Department of Physics, Bouira, Algeria

autor

Touka Nassim

• Laboratory of Materials and Sustainable Development, University of Bouira, Faculty of Sciences and Applied Sciences, Department of Physics, Bouira, Algeria

autor

Baddari Kamel

• Laboratory of Materials and Sustainable Development, University of Bouira, Faculty of Sciences and Applied Sciences, Department of Physics, Bouira, Algeria

autor

Selmi Nourddine

• Nuclear Research Centre of Birine, Algeria

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