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This work examines the grown of Zn1-xCoxO films at different Co concentrations at 420°C by ultrasonic spray deposition. The effect of Co concentration of Zn1-xCoxO films on optical characterization, structure crystallinity and electrical conductivity was studied. Transmission spectra of Zn1-xCoxO films presented three edges in the visible region, it was observed in the range of 541 and 656 nm of wavelengths, which related to the d-d transitions of Co2+ ion with 3d7 high-spin configurations in a tetrahedral crystal field formed by neighboring O2−ions. The gap energy was found increases after doping by Co to maximum value of 3.373 eV at x=0.04. The Urbach energy minimum was 0.083eV, it is obtained for x=0.01. The sprayed Zn1-xCoxO films exhibit a wurtzite structure with preferred orientation in the (002) direction. The maximum crystallite size of Zn1-xCoxO films was 95.61 nm at x=0.06. The maximum electrical conductivity of the Co doped ZnO films was located at x=0.06.
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This work examines the grown of Zn1-xCoxO films at different Co concentrations at 420°C by ultrasonic spray deposition. The effect of Co concentration of Zn1-xCoxO films on optical characterization, structure crystallinity and electrical conductivity was studied. Transmission spectra of Zn1-xCoxO films presented three edges in the visible region, it was observed in the range of 541 and 656 nm of wavelengths, which related to the d-d transitions of Co2+ ion with 3d7 high-spin configurations in a tetrahedral crystal field formed by neighboring O2−ions. The gap energy was found increases after doping by Co to maximum value of 3.373 eV at x=0.04. The Urbach energy minimum was 0.083eV, it is obtained for x=0.01. The sprayed Zn1-xCoxO films exhibit a wurtzite structure with preferred orientation in the (002) direction. The maximum crystallite size of Zn1-xCoxO films was 95.61 nm at x=0.06. The maximum electrical conductivity of the Co doped ZnO films was located at x=0.06.

The Characterization of Zn1-XCoxO Thin Films Synthesized by Ultrasonic Spray Deposition with Controlled Visible Light Absorption

Laboratoire d’Etude des Matériaux Optoélectronique et Polymères, Oran University

Laboratoire de Physique Photonique et Nanomatériaux Multifonctionnels

Advances in Materials Science

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

The Characterization of ZnCoO Thin Films Synthesized by Ultrasonic Spray Deposition with Controlled Visible Light Absorption

This work examines the grown of Zn1-xCoxO films at different Co concentrations at 420°C by ultrasonic spray deposition. The effect of Co concentration of...

The Characterization of Zn_1-XCo_xO Thin Films Synthesized by Ultrasonic Spray Deposition with Controlled Visible Light Absorption

Publié en ligne: 29 juin 2024

Pages: 61 - 69

Reçu: 20 sept. 2022

Accepté: 13 nov. 2023

DOI: https://doi.org/10.2478/adms-2024-0012

Mots clés
ZnCoO, thin films, transparent conducting oxides (TCO), ultrasonic spray method

© 2024 Azzeddine Charef et al., published by Sciendo

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

The Characterization of Zn1-XCoxO Thin Films Synthesized by Ultrasonic Spray Deposition with Controlled Visible Light Absorption

Publié en ligne: 29 juin 2024

Pages: 61 - 69

Reçu: 20 sept. 2022

Accepté: 13 nov. 2023

DOI: https://doi.org/10.2478/adms-2024-0012

Mots clésZnCoO, thin films, transparent conducting oxides (TCO), ultrasonic spray method

© 2024 Azzeddine Charef et al., published by Sciendo

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

The Characterization of Zn_1-XCo_xO Thin Films Synthesized by Ultrasonic Spray Deposition with Controlled Visible Light Absorption

Mots clés
ZnCoO, thin films, transparent conducting oxides (TCO), ultrasonic spray method