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

<p>Using a spray pneumatic technique, cobalt (Co) and copper (Cu) co-doped zinc oxide thin films were effectively deposited on a glass substrate. The goal of this work was to create a semiconductor with good optical and electrical properties by co-doping ZnO thin films with Cu and Co. The ZnO thin films obtained from the Co and Cu co-doping exhibit patterns of x-ray diffraction spectra that suggest they are hexagonal ZnO (wurtzite, JCPDS 36-1451). The thin film elaborated with 2 % Co and 7 % Cu has the lowest value of crystallite size (<italic>D</italic> = 14.67 nm). The transmission spectra demonstrate that all films have good optical transparency in the visible spectrum, with 7 % Cu achieving the highest transmission. Increasing Cu contents raised the band gap energy. The value at the minimum was 3.31 eV. The optical band gap’s broadening is a significant characteristic of advanced materials and may be useful in applications involving metal oxide nanostructures for visible light gas sensing.</p>
</abstract>

Using a spray pneumatic technique, cobalt (Co) and copper (Cu) co-doped zinc oxide thin films were effectively deposited on a glass substrate. The goal of this work was to create a semiconductor with good optical and electrical properties by co-doping ZnO thin films with Cu and Co. The ZnO thin films obtained from the Co and Cu co-doping exhibit patterns of x-ray diffraction spectra that suggest they are hexagonal ZnO (wurtzite, JCPDS 36-1451). The thin film elaborated with 2 % Co and 7 % Cu has the lowest value of crystallite size (D = 14.67 nm). The transmission spectra demonstrate that all films have good optical transparency in the visible spectrum, with 7 % Cu achieving the highest transmission. Increasing Cu contents raised the band gap energy. The value at the minimum was 3.31 eV. The optical band gap’s broadening is a significant characteristic of advanced materials and may be useful in applications involving metal oxide nanostructures for visible light gas sensing.

The Effect of Co and Cu Co-Doping Zno Thin Films on Structural and Optical Properties

Materials, Energy and Environment Laboratory

Material Sciences Department, Faculty of Science

Mechanics Department, Faculty of Technology

Chemistry-Didactics-Ecology-Metrology

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

Using a spray pneumatic technique, cobalt (Co) and copper (Cu) co-doped zinc oxide thin films were effectively deposited on a glass substrate. The goal of this...

The Effect of Co and Cu Co-Doping Zno Thin Films on Structural and Optical Properties

Published Online: Jan 25, 2024

Page range: 171 - 178

DOI: https://doi.org/10.2478/cdem-2023-0010

Keywords
ZnO, thin films, Co and Cu co-doping, TCO spray pneumatic method

© 2023 Tayeb Saoud et al., published by Sciendo

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

The Effect of Co and Cu Co-Doping Zno Thin Films on Structural and Optical Properties

Published Online: Jan 25, 2024

Page range: 171 - 178

DOI: https://doi.org/10.2478/cdem-2023-0010

KeywordsZnO, thin films, Co and Cu co-doping, TCO spray pneumatic method

© 2023 Tayeb Saoud et al., published by Sciendo

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

Keywords
ZnO, thin films, Co and Cu co-doping, TCO spray pneumatic method