Annealing effects of ZnO thin films on p-Si(100) substrate deposited \newline by PFCVAD

Kara, Kamuran; Tüzemen, Ebru Şenadım; Esen, Ramazan

doi:10.3906/fiz-1310-3

Cited by 9 publications

(2 citation statements)

References 35 publications

(42 reference statements)

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“…The Kubelka-Munk (K-M) function 𝐹(𝑅) was used to convert reflectance measurements into equivalent absorption spectra. Diffuse reflectance data were transformed according to the K-M model by the following relation [40,41]:…”

Section: Resultsmentioning

confidence: 99%

Effect of ZnO Nanoparticles Salt Precursors on Structural, Morphological, Optical and MB Photocatalytic Properties Using Hydrothermal Synthesis

Bahtoun

Hadjeris

Iaiche

et al. 2023

JNanoR

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ZnO nanoparticles were successfully produced via a simple low cost hydrothermal method using different metal precursors. Zn (CH3COO)2), (Zn (NO3)2) and (ZnCl2) were the source materials. The obtained nanoparticles were investigated by means XRD, SEM and DRS. The XRD exhibited the high crystallinity of the pure ZnO phase with hexagonal wurtzite crystalline structure for all simples excepted for ZnO synthetized from ZnCl2 precursor. The crystallite sizes was estimated in the range of 20-37 nm. The precursor type do not affect the Eg of the nanoparticles. The bandgaps energies were between 3.21-3.22 eV. The type of precursor affect the particles morphology. SEM images revealed different morphologies. The photocatalytic activity of the synthetized ZnO NPs in comparison with that of commercial powder for the methylene blue (MB) degradation under UV irradiation, showed the appropriate activity of nanostructures obtained by Zn (NO3)2 and Zn (CH3COO)2 precursors. The first-order kinetic constant over ZnO from Zn (NO3)2 was 1.9, 3.7 and 1.5 times of ZnO commercial powder, ZnO from ZnCl2 and Zn (CH3COO)2, respectively. The ZnO NPs from Zn (NO3)2 and Zn (CH3COO)2 precursors have the best photocatalytic degradation performance with a degradation rate of 99.3% and 96.4%, respectively. The higher photocatalytic performance was probably due to the larger crystallinity, purity phase and specific morphologies than smaller particle size effect. Thus, the synthetized ZnO nanoparticles by the soft hydrothermal process are a promising candidate for the photocatalytic purposes of dyes from waters.

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Section: Resultsmentioning

confidence: 99%

Effect of ZnO Nanoparticles Salt Precursors on Structural, Morphological, Optical and MB Photocatalytic Properties Using Hydrothermal Synthesis

Bahtoun

Hadjeris

Iaiche

et al. 2023

JNanoR

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“…So far, several methods have been used to grow ZnO thin films such as Molecular Beam Epitaxy (MBE) [17], Chemical Spray Pyrolysis [18], Physical Vapour Deposition (PVD) [19], Chemical Vapour Deposition (CVD) [20], Burner Flame Transport Synthesis (B-FTS) [21], Thermal Evaporation (TE) [22], Crucible Flame Transport Synthesis C-FTS) [21], Flame Spray Pyrolysis [23,24], and pulsed filtered cathodic vacuum arc deposition (PFCVAD) [25]. Among these techniques, PFCVAD was reported as a superior technique which allows a wide range of deposition rates from nanometres per minute to tens of micrometres per minute [26] with a good coating uniformity and well adhesion on substrates at room temperature [26,27].…”

Section: Introductionmentioning

confidence: 99%

Effects of annealing temperature on a ZnO thin film-based ultraviolet photodetector

et al. 2022

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In this paper, the effects of annealing temperature on the performance of a ZnO thin film-based Metal-Semiconductor-Metal (MSM) type ultraviolet (UV) photodetector is reported. ZnO thin films were grown on a glass substrate using the Pulsed Filtered Cathodic Vacuum Arc Deposition (PFCVAD) technique at room temperature and after the deposition process the samples were annealed at 400, 450 and 550 °C in air condition to investigate the annealing effect on the structural, electrical, and optical properties of the photodetector. ZnO thin films which have grains in nanometer range has an increasing in the diameter of grains from 10.5 to 18.3 nm as a function of annealing temperature results in a red shift in the cut-off wavelength of the photodetector from 3.25 eV (381 nm) to 3.23 eV (383 nm). It is demonstrated that the sensitivity and the speed (rise/fall times) of the ZnO thin film based MSM photodetectors enhances with increasing post growth annealing temperature of ZnO thin film due to the increase in the absorption coefficient and the decrease of the total area of the grain boundaries due to the larger grain sizes formation in ZnO thin films with increasing thermal annealing temperature.

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Effect of Au thin film thickness and surface nanoparticles morphologies on the optical band gap and photoluminescence of ZnO thin films deposited by pulsed electron deposition technique

Thien

Hoa

Doanh

et al. 2022

J Mater Sci: Mater Electron

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Annealing effects of ZnO thin films on p-Si(100) substrate deposited \newline by PFCVAD

Cited by 9 publications

References 35 publications

Effect of ZnO Nanoparticles Salt Precursors on Structural, Morphological, Optical and MB Photocatalytic Properties Using Hydrothermal Synthesis

Effect of ZnO Nanoparticles Salt Precursors on Structural, Morphological, Optical and MB Photocatalytic Properties Using Hydrothermal Synthesis

Effects of annealing temperature on a ZnO thin film-based ultraviolet photodetector

Effect of Au thin film thickness and surface nanoparticles morphologies on the optical band gap and photoluminescence of ZnO thin films deposited by pulsed electron deposition technique

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