Effect of ammonium concentration on structural, optical and morphological properties of H-Nb<sub>2</sub>O<sub>5</sub> thin films—A novel study

Salim, Evan T.; Saimon, Jehan A.; Abood, Marwa K; Fakhri, Makram A.

doi:10.1088/2053-1591/aafc7a

Cited by 47 publications

(8 citation statements)

References 43 publications

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“…This might be caused by variations in the inter planar spacing of the films as well as defects in the WO 3 lattice sites at higher substrate temperatures. Also, with thinner films, the strain and the dislocation density are found to be raised too [36,37], indicating an inverse relationship between grain size, strain, and dislocation density as shown in table 2 [38][39][40][41][42].…”

Section: Resultsmentioning

confidence: 99%

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Salim¹,

Hassan²,

A.Mohamed³

et al. 2023

Phys. Scr.

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Monoclinic WO3 thin films have been effectively deposited by a simple spray pyrolysis technique at a molar concentration of 0.01 M on a glass substrate in the temperature range of 473 to 673 K. These WO3 films were used as an interlayer between the metal and the semiconductor, which formed the basic structure of the photodetector. Effect of substrate temperature on WO3 films during the process of the deposition was systematically interpreted with respect to the structural, morphological, optical and electrical properties of the WO3 films. The X-ray diffraction pattern revealed the polycrystalline nature of the prepared films with monoclinic phases. At the substrate temperature of 623 K, the nano-thin films were strongly bonded to each other as observed from the FE-SEM images. Visible and ultraviolet spectroscopies indicated the band gap (Eg) of the WO3 thin film is 3.30 eV. The dc electrical study recorded a sharp increase in the electrical conductivity of the prepared film at substrate temperature of 623 K for tungsten trioxide. It is worth noting that all diodes showed a positive photoresponse under illumination. In particular, the photodetector with the thickness of 300 nm showed higher responsivity 0.02 A/W and detection specificity 8.29 x 1010 Jones.

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Section: Resultsmentioning

confidence: 99%

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Salim¹,

Hassan²,

A.Mohamed³

et al. 2023

Phys. Scr.

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“…The BRUKER-7613Fourier Transform-Infrared Spectroscopy (FTIR) was used for studying the chemical bonds of Nb 2 O 5 in understanding the chemical characteristics. The processed samples were in [40][41][42][43], while the peak 1103.28 cm −1 is assigned to the Nb-O-C vibration mode [36]. Other peaks at1627.9, 1631.7, 1634.7 and 1627.9 cm −1 are related to the bending vibrations of H 2 O molecule and the weak asymmetric band presence of OH group [36,44], whereas peaks at 2117.8 and 2113.98 cm −1 are associated to pure niobium Nb [45,46].…”

Section: Experimental Workmentioning

confidence: 99%

“…The peaks at 713.6, 690.5, 698.2 and 709.8 cm −1 represent the Nb-O-Nb stretching vibration modes which indicate the formation of niobium oxide complex and the presence of Nb 2 O 5 . Those peaks denote the formation of T-Nb 2 O 5 structure[40][41][42][43], while the peak 1103.28 cm −1 is assigned to the Nb-O-C vibration mode[36]. Other peaks at1627.9, 1631.7, 1634.7 and 1627.9 cm −1 are related to the bending vibrations of H 2 O molecule and the…”

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confidence: 97%

Nb₂O₅nano and microspheres fabricated by laser ablation

Abdulrahman¹,

Salim²,

Mahdi³

et al. 2022

Adv. Nat. Sci: Nanosci. Nanotechnol.

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This work presents a successful and novel method for the preparation of Nb2O5 nanoparticles via pulsed laser ablation in liquid (PLAL) by employing a pure Nb plate and deionised water. The effect of various laser fluences on the chemical, structural, morphological and optical characteristics was studied. Chemical characteristics confirmed the formation of the orthorhombic T-Nb2O5 structure. While the morphology characteristics showed spherical particles and its density dependency on the laser fluence. The Nb2O5 stoichiometry ranged between 42.20% and 88.86%. Additionally, the structural analysis showed peaks related to the orthorhombic T-Nb2O5 structure with grain size between 58.2 and 244.6 nm. Lastly, topographical images showed that the average particle size was in the range 6.8 and 32 nm, and sample roughness was between 17.39 and 1.377 nm.

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“…The tattoo removal laser of a powerful target submerged in a fluid environment has become an increasingly necessary "top-down" method for producing nanostructured materials [15,16]. The elimination of a strong target placed in a fluid medium produces NP and Nano rods in this technique.…”

Section: Introductionmentioning

confidence: 99%

Physical Properties of Pure Gold Nanoparticles and Gold Doped ZnO Nanoparticles Using Laser Ablation in Liquid For Sensor Applications

Hassan¹,

Fakhri²,

Salim³

2022

ETJ

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Effect of ammonium concentration on structural, optical and morphological properties of H-Nb₂O₅ thin films—A novel study

Cited by 47 publications

References 43 publications

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Nb₂O₅nano and microspheres fabricated by laser ablation

Physical Properties of Pure Gold Nanoparticles and Gold Doped ZnO Nanoparticles Using Laser Ablation in Liquid For Sensor Applications

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Effect of ammonium concentration on structural, optical and morphological properties of H-Nb2O5 thin films—A novel study

Cited by 47 publications

References 43 publications

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO3/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO3/Si device fabrication

Nb2O5nano and microspheres fabricated by laser ablation

Physical Properties of Pure Gold Nanoparticles and Gold Doped ZnO Nanoparticles Using Laser Ablation in Liquid For Sensor Applications

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Product

Resources

About

Effect of ammonium concentration on structural, optical and morphological properties of H-Nb₂O₅ thin films—A novel study

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

A sight of view on electrical impacts, structural properties and surface roughness of tungsten trioxide thin film: effect of substrate temperatures in WO₃/Si device fabrication

Nb₂O₅nano and microspheres fabricated by laser ablation