Comparison of structural, morphological, linear and nonlinear optical properties of NiO thin films elaborated by Spin-Coating and Spray Pyrolysis

Chtouki, T.; Soumahoro, L.; Kulyk, B.; Bougharraf, H.; Kabouchi, B.; Erguig, H.; Sahraoui, B.

doi:10.1016/j.ijleo.2016.10.007

Cited by 43 publications

(16 citation statements)

References 25 publications

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“…Moreover, several studies have been sensitive to find that the NiO has high optical transparency and good electrical conductivity at various experimental conditions. Among them, NiO thin films with a bandgap of 3.5 to 4.3 eV [9,10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterizations of Nanocrystalline Na and Al Codoped Nio Thin Films

Benramache¹,

Guezzoun²

2020

IJIE

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In the present work, Na and Al codoped NiO thin films were successfully deposited on a glass substrate by spray pneumatic method. The effect of Al concentration on optical, structural and electrical properties was studied. The transmission spectra show that the Na and Al codoped NiO thin films have good optical transparency in the visible region. The optical band gap energy increased after co-doping by Al to the maximum value of 3.926 eV for 2 % Al. The minimum value of Urbach energy was obtained at a high Al concentration it is 0.319 eV for 3 % Al. The Na and Al codoped NiO films have a minimum electrical resistance was obtained for 1 % Al. XRD patterns of the Na and Al codoped NiO thin films indicating that the structure of Na and Al codoped NiO thin films have a cubic structure of NiO phase.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterizations of Nanocrystalline Na and Al Codoped Nio Thin Films

Benramache¹,

Guezzoun²

2020

IJIE

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“…The thin films of NiO can be obtained by various deposition methods likely electrochemical deposition, pulsed laser deposition, magnetron sputtering, molecular beam epitaxy (MBE), reactive evaporation, sol-gel process, chemical vapor deposition, and spray pyrolysis [7][8][9]. NiO has been intensively studied as a promising material for gas sensors in the detection due to the range of wide bandgap (3.6-4.0 eV) and high stability that are similar to ZnO [10,11].…”

Section: Introductionmentioning

confidence: 99%

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

Benramache

Benhaoua²,

Guezzoun

2020

Annals of West University of Timisoara - Physics

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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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“…However, several studies have been made to find that the NiO have a high optical transparency and good electrical conductivity at various experimental conditions. NiO thin films have a direct band gap ranging from 3.5 to 4.3 eV [9,10].…”

Section: Introductionmentioning

confidence: 99%

The calculate of optical gap energy and urbach energy of Ni1−xCoxO thin films

et al. 2019

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The effect of Co doping on optical, structural and electrical properties of Ni 1-x Co x O thin films has been successfully deposited on glass substrate by Sol-Gel Sping coating technique. The main objective of this research is to study the Ni 1-x Co x O thin films to determine the optical gap energy by various methods and compare of calculated values. The transmission spectra show that the Ni 1-x Co x O thin films have a good optical transparency in the visible region. The optical gap energy was varied between 3.8 and 4.05 eV, which was determined by various methods and equations. These are found in the drawn of A, A 2 , a, a 2 (Ahm) 2 and (ahm) 2 as a function of the photon energy hm, the suitable method to calculate the optical energy was observed for (Ahm) 2 versus hm, but this method can not be related to the film thickness. The urbach energy of the Ni 1-x Co x O thin films also was determined by the curves of LnA and Lna as a function of photon energy hm. The deduce by LnA versus hm is also suitable to estimate the urbach energy. However, the Ni 0.96 Co 0.04 O thin films have a few defects with minimum value of urbach energy. XRD patterns of the Ni 1-x Co x O thin films indicate that some films are polycrystalline with cubic structure. The electrical conductivity of our films is in the order of 8.2*10-3 (X.cm) 1 .

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Comparison of structural, morphological, linear and nonlinear optical properties of NiO thin films elaborated by Spin-Coating and Spray Pyrolysis

Cited by 43 publications

References 25 publications

Synthesis and Characterizations of Nanocrystalline Na and Al Codoped Nio Thin Films

Synthesis and Characterizations of Nanocrystalline Na and Al Codoped Nio Thin Films

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

The calculate of optical gap energy and urbach energy of Ni1−xCoxO thin films

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