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

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 w...

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Main Authors: Benramache Said, Benhaoua Boubaker, Guezzoun Hanane
Format: Article
Language:English
Published: Sciendo 2020-12-01
Series:Annals of West University of Timisoara: Physics
Subjects:
Online Access:https://doi.org/10.2478/awutp-2020-0002
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author Benramache Said
Benhaoua Boubaker
Guezzoun Hanane
author_facet Benramache Said
Benhaoua Boubaker
Guezzoun Hanane
author_sort Benramache Said
collection DOAJ
description 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.
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spelling doaj.art-ba2bb3b9f25543e697afc0ba394a180a2023-01-02T06:57:58ZengSciendoAnnals of West University of Timisoara: Physics1224-97182020-12-01621152210.2478/awutp-2020-0002awutp-2020-0002Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin FilmsBenramache Said0Benhaoua Boubaker1Guezzoun Hanane2Material Sciences Department, Faculty of Science, University of Biskra07000, AlgeriaRenewable Energy Research Unit in Arid Zones, University of El-Oued, 39000, Algeria.Department of Physics, University of El-Oued, 39000, Algeria.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.https://doi.org/10.2478/awutp-2020-0002cuniothin filmsspain coater methodpolycrystalline structureelectrical conductivity
spellingShingle Benramache Said
Benhaoua Boubaker
Guezzoun Hanane
Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
Annals of West University of Timisoara: Physics
cu
nio
thin films
spain coater method
polycrystalline structure
electrical conductivity
title Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
title_full Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
title_fullStr Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
title_full_unstemmed Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
title_short Study the Effect of Cu Doping on Optical and Structural Properties of NiO Thin Films
title_sort study the effect of cu doping on optical and structural properties of nio thin films
topic cu
nio
thin films
spain coater method
polycrystalline structure
electrical conductivity
url https://doi.org/10.2478/awutp-2020-0002
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