Properties of (NiO)1-(ZnO)  thin films deposited by spray pyrolysis

Herissi, Labidi; Hadjeris, L.; Aida, M.S.; Bougdira, J.

doi:10.1016/j.tsf.2015.09.034

Cited by 10 publications

(21 citation statements)

References 38 publications

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“…Several methods have been used for the fabrication of iron oxide thin films, including template [9], chemical vapor deposition [10], atomic layer deposition [11], hydrothermal [12], sol-gel deposition [13], magnetic sputtering [14], electrochemical anodization [15] and spray pyrolysis [2]. Among these methods, spray pyrolysis showed more advantages such as easy operation, non-toxic and eco-friendly method [16].…”

Section: Introductionmentioning

confidence: 99%

Zn-Doped Iron Oxide Thin Films Prepared by Spray Pyrolysis Technique and Characterized for Use as an Efficient Photocatalyst for Methyl Green Organic Dye

Moussa

Hadjeris

Herissi

et al. 2022

NHC

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Ultrasonic Spray Pyrolysis (USP) technique was used to prepare undoped and (2, 4, 6 and 10 at. %) Zn-doped iron oxide (FexOy:Zn) thin films for use in photocatalytic applications. The effect of Zn ion substitution on structural, optical, and electrical properties was studied. The X-ray diffraction patterns showed that there are two different phases of iron oxide, a hematite phase (α‑Fe2O3) and a magnetite phase (Fe3O4) that crystallized in the prepared samples. The nominal fractions of α‑Fe2O3 and Fe3O4 phases changed from 74 % to 42 % for the hematite phase and from 26 % to 58 % for the magnetite phase and this confirmed that the Zn doping favored the growth of Fe3O4 phase. The crystallite size decreased from 15.43 nm to 8.99 nm, while the micro-strain changed from 0.0056 to 0.0215 and the dislocation density from 0.0099 nm‑2 to 0.0639 nm‑2. The unit cell parameters were also improved when the doping rate was changed. Optical measurements showed that the energy gap decreased from 2.26 eV to 2.16 eV, the film thickness changed from 569 nm to 479 nm while the refractive index increased from 2.99 to 3.51 and the Urbach energy from 544 meV to 558 meV. Electrical measurements performed by the two-point probe method showed that the electrical conductivity increased directly with increasing Zn concentration reaching 18.5 10‑15 (Ω.cm)‑1 with 10 at. % Zn concentration. The variation of the electrical conductivity curves versus the sample heating temperature as well as the activation energy showed a semiconductor behavior of the films. Zinc doped iron oxide thin films exhibit 51.85 % photocatalytic degradation efficiency for methyl green organic dye.

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Section: Introductionmentioning

confidence: 99%

Zn-Doped Iron Oxide Thin Films Prepared by Spray Pyrolysis Technique and Characterized for Use as an Efficient Photocatalyst for Methyl Green Organic Dye

Moussa

Hadjeris

Herissi

et al. 2022

NHC

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“…Nickel oxide NiO is one of the parts of this family of TCO, its good adsorptive properties and chemical stability; it can be deposited onto glass, ceramics, oxides, and substrate materials of other types [1,2]. The semiconductors as oxides metallic are essential compounds for the development of the ultra-high frequencies components, gas sensors, photocatalysis, optoelectronics, lithium-ion microbatteries, enamels and cathode materials for alkaline batteries [2][3][4][5]. Among these, Nickel oxide (NiO) is a semitransparent p-type semiconducting material a large gap direct (3.6-4.0 eV), and has a wide range of applications, such as gas sensors, photocatalysis, dye-sensitized, electrochromic coatings, UV photo-detector, lightweight structural components in the aerospace, in ceramic structures, a counter electrode and anode layer of solid, counter electrodes oxide fuel cells [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Physical Properties of the NiO Thin Films by Various Concentrations

Maaoui

Aoun

Benramache

et al. 2020

Advances in Materials Science

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In this work, nickel oxide was deposited on a glass substrate at by spray deposition technique; the structural, optical and electrical properties were studied at different NiO concentrations (0.05, 0.10 and 0.15 mol.l−1). Polycrystalline NiO films with a cubic structure with a strong (111) preferred orientation were observed at all sprayed films with minimum crystallite size of 11.97 nm was attained of deposited film at 0.1 mol.l−1. However, α-Ni(OH)2 was observed at 0.15 mol.l−1. The NiO thin films have good transparency in the visible region, the band gap energy varies from 3.54 to 376 eV was affected by NiO concentration, it is shown that the NiO thin film prepared at 0.05 mol.l−1 has less disorder with few defects. The NiO film deposited at 0.15 mol.l−1 has the electrical conductivity was 0.169 (Ω.cm)−1.

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“…The activity "semiconductor oxides" is centered on zinc oxide (ZnO) and nickel oxide (NiO), and their alloys [1][2][3][4][5][6]. ZnO and NiO are n-type group II-VI semiconductor and p-type group VIII-VI semiconductor, respectively, although they both have wide optical gap at room temperature [2,7].…”

Section: Introductionmentioning

confidence: 99%

“…Several authors have characterized the Ni doped ZnO thin films [3,4,[8][9][10][11] and Zn doped NiO thin films [2,5,6] elaborated by several techniques such as: pulsed laser deposition [3,12], sol-gel method [4][5][6]10,11], chemical bath deposition [8], and spray pyrolysis technique [2,9]. They also studied the variation of their properties as a function of deposition conditions such as doping concentration, nature and temperature of the substrate, technique of deposition and the nature of the chemical precursor used to control, in principle, the phase deposited and its morphology.…”

Section: Introductionmentioning

confidence: 99%

Ni-Doped ZnO Thin Films Deposited by Pneumatic Spray Pyrolysis

Herissi

Hadjeris

Aida

et al. 2019

NHC

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The objective of the present work is the study the Ni concentration effect on the optical, structural and electrical properties of ZnO:Ni thin films deposited by pneumatic spray pyrolysis method. Un-doped and Ni-doped ZnO thin films were prepared from zinc acetate dihydrate and nickel chloride hexahydrate dissolved in distilled water onto glass substrates by pneumatic spray pyrolysis method. Solution concentration, substrate temperature and nozzle-substrate distance were kept constant during all deposition processes. Effect of nickel content on the optical, structural and electrical properties of as-prepared films obtained was investigated by UV–Vis-NIR spectrophotometry, X-ray diffraction and four-point probe technique. The results indicate that the deposited films are well adherent to the substrates, present surface roughness and have a preferential growth in the (002) direction. The observed transmittance in the visible region was situated between 60% and 70%. For Ni-doped ZnO, there are two separate phases. The Urbach energy, grain size, and electrical conductivity increase with Ni content. The same behavior for both the optical energy gap and the ZnO:Ni lattice parameters.

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Properties of (NiO)1-(ZnO) thin films deposited by spray pyrolysis

Cited by 10 publications

References 38 publications

Zn-Doped Iron Oxide Thin Films Prepared by Spray Pyrolysis Technique and Characterized for Use as an Efficient Photocatalyst for Methyl Green Organic Dye

Zn-Doped Iron Oxide Thin Films Prepared by Spray Pyrolysis Technique and Characterized for Use as an Efficient Photocatalyst for Methyl Green Organic Dye

Synthesis and Characterization of Physical Properties of the NiO Thin Films by Various Concentrations

Ni-Doped ZnO Thin Films Deposited by Pneumatic Spray Pyrolysis

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