<abstract xmlns="http://www.w3.org/1999/xhtml"><p>In this work, copper doped nickel oxide as the thin films have been elaborated by a spin coating method, the nickel chloride hexahydrate (0.8M) and copper (II) chloride dehydrate (Cu/Ni = 0, 2.15, 4.3, 8.6 and 12.9 At.%) were used to prepare the Cu doped NiO thin films. The Cu doped NiO thin films were heated at a crystallization temperature of 600 °C with 2 h. The obtained thin films by spin coater method have a film thickness in the order of 400 nm. The prepared Cu doped NiO thin films have a polycrystalline with cubic structure (200) peak was observed. The optical property shows that the prepared thin films have a transmittance of about 70 %. The Cu doped NiO thin films have minimum bandgap energy is 3.85 eV at 12.9 at.%, the thin film deposited at 8.6 at.% has the highest value of Urbach energy is 425 meV. The Cu doped NiO thin films have a high electrical conductivity of 8.6 at% it is 7 (Ω.cm)<sup>−1</sup>. The prepared Cu doped NiO thin film was suitable for gas sensing applications due to the existing phase and higher electrical conductivity.</p></abstract>

In this work, copper doped nickel oxide as the thin films have been elaborated by a spin coating method, the nickel chloride hexahydrate (0.8M) and copper (II) chloride dehydrate (Cu/Ni = 0, 2.15, 4.3, 8.6 and 12.9 At.%) were used to prepare the Cu doped NiO thin films. The Cu doped NiO thin films were heated at a crystallization temperature of 600 °C with 2 h. The obtained thin films by spin coater method have a film thickness in the order of 400 nm. The prepared Cu doped NiO thin films have a polycrystalline with cubic structure (200) peak was observed. The optical property shows that the prepared thin films have a transmittance of about 70 %. The Cu doped NiO thin films have minimum bandgap energy is 3.85 eV at 12.9 at.%, the thin film deposited at 8.6 at.% has the highest value of Urbach energy is 425 meV. The Cu doped NiO thin films have a high electrical conductivity of 8.6 at% it is 7 (Ω.cm)−1. The prepared Cu doped NiO thin film was suitable for gas sensing applications due to the existing phase and higher electrical conductivity.

Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films

Material Sciences Department, Faculty of Science

Renewable Energy Research Unit in Arid Zones

Annals of West University of Timisoara - Physics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

In this work, copper doped nickel oxide as the thin films have been elaborated by a spin coating method, the nickel chloride hexahydrate (0.8M) and copper (II)...

Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films

Published Online: Dec 16, 2020

Page range: 15 - 22

Received: Jan 10, 2020

Accepted: Apr 07, 2020

DOI: https://doi.org/10.2478/awutp-2020-0002

Keywords
Cu, NiO, Thin films, Spain coater method, polycrystalline structure, Electrical conductivity

© 2020 Said Benramache et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films

Published Online: Dec 16, 2020

Page range: 15 - 22

Received: Jan 10, 2020

Accepted: Apr 07, 2020

DOI: https://doi.org/10.2478/awutp-2020-0002

KeywordsCu, NiO, Thin films, Spain coater method, polycrystalline structure, Electrical conductivity

© 2020 Said Benramache et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Cu, NiO, Thin films, Spain coater method, polycrystalline structure, Electrical conductivity