Fabrication and Characterisation of ZnO Thin Film by Sol–Gel Technique

Benramache, Said

doi:10.2478/awutp-2019-0006

Cited by 5 publications

(6 citation statements)

References 16 publications

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“…where A is the absorbance of fabricated NiO thin films, ) and g E the bandgap energy of the semiconductor. However, the disorder or Urbach energy ( u E ) also was determined by the expression follow [27,28]: Figure 4. The band gap energy was observed a smaller than 3.5 eV, it is change and decreased with the increase in the deposition rate from 3.51 to 3.34 eV of 20 to 80 ml, respectively.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Deposited NiO Thin Films by Spray Pyrolysis Technique

Zaouche

Aoun

Benramache

et al. 2019

Scientific Bulletin of Valahia University - Materials and Mechanics

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In this work, nickel oxide was fabricated on glass substrate at 450 °C by spray pyrolysis technique. The NiO layers were obtained with 0.05M molarity, which were deposited by various deposition rates 20, 40, 60 and 80 ml. The effects of deposition rate on the structural, electrical and optical properties were examined. All fabricated NiO thin films were observed a nanocrystalline a cubic structure with a strong (111) preferred orientation, it is only phase was observed in all deposited NiO. The film elaborated with 60 ml have a minimum value of crystallite size was 15.8 nm. All NiO thin films have an average transmittance is about 70 % in the visible region. The NiO thin films have a verity in the band gap energy from 3.34 to 3.51 eV because the effect of deposition, the minimum value was found at 80 ml, this condition have a lowest Urbach energy. The NiO thin films have an electrical resistivity was decreased from 0.625 to 0.152 (Ω.cm) with increasing the deposition rate from 20 to 80ml. The best results of NiO thin films are obtained in the deposition NiO films by 40 and 80 ml.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Deposited NiO Thin Films by Spray Pyrolysis Technique

Zaouche

Aoun

Benramache

et al. 2019

Scientific Bulletin of Valahia University - Materials and Mechanics

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“…ZnO has been widely employed in a variety of fields, including automobile manufacturing, medical equipment, interactions, computers, electronics, optoelectronics, biological materials, storing data, converting energy, as well as architecture. All previous applications indicate that ZnO it has unique features [1][2][3][4][5][6][7]. It is critical to determine which element or elements ZnO must be doped with in order to control the bands gap, conductivity, carrier's concentration and applications.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Co and Cu Co-Doping Zno Thin Films on Structural and Optical Properties

Saoud,

Benramache,

Diha

2023

Chemistry-Didactics-Ecology-Metrology

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Using a spray pneumatic technique, cobalt (Co) and copper (Cu) co-doped zinc oxide thin films were effectively deposited on a glass substrate. The goal of this work was to create a semiconductor with good optical and electrical properties by co-doping ZnO thin films with Cu and Co. The ZnO thin films obtained from the Co and Cu co-doping exhibit patterns of x-ray diffraction spectra that suggest they are hexagonal ZnO (wurtzite, JCPDS 36-1451). The thin film elaborated with 2 % Co and 7 % Cu has the lowest value of crystallite size (D = 14.67 nm). The transmission spectra demonstrate that all films have good optical transparency in the visible spectrum, with 7 % Cu achieving the highest transmission. Increasing Cu contents raised the band gap energy. The value at the minimum was 3.31 eV. The optical band gap’s broadening is a significant characteristic of advanced materials and may be useful in applications involving metal oxide nanostructures for visible light gas sensing.

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“…Furthermore, there are numerous growing techniques in the literature to obtain ZnO thin films. [14][15][16] Among these, the chemical spraying technique can be seen as more advantageous due to its simplicity, cheapness, ease of use, and ability to work without vacuum at low temperatures, but obtaining a uniform film structure can be hard due to the need to control the droplet size and the distribution of thermogravimetric forces. 17,18 As mentioned above, due to the importance of transition metal-doped ZnO for device applications, it is important to investigate the performance of Cr-doped ZnO films as an interfacial layer obtained by the chemical spray pyrolysis technique in an Au/ZnO:Cr/p-Si device.…”

Section: Introductionmentioning

confidence: 99%

Investigation the Performance of Cr-Doped ZnO Nanocrystalline Thin Film in Photodiode Applications

Turşucu

Aydoğan

Koçyiğit

et al. 2022

JOM

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Undoped and Cr-doped zinc oxide (ZnO) thin films were deposited on the glass and p-Si substrates by the chemical spray pyrolysis technique. The films were characterized by x-ray diffractometry (XRD) and UV-visible spectrometry, and electrical characterization was achieved by using the films as an interfacial layer between the Au and p-Si. The XRD results confirmed the undoped and Cr-doped ZnO thin film crystalline structures. UV-visible spectra provided the transmittance plots and band gap energy values. I-V measurements were performed on the fabricated Au/ZnO/p-Si and Au/ZnO:Cr/p-Si devices to determine the effect of the ZnO interfacial layer on their performance. Various junction parameters, such as the ideality factor, barrier height, and series resistance, were calculated from the I-V measurements by various techniques, and have been discussed in detail. A 100-mW/cm 2 power intensity light was exposed on the Au/ZnO:Cr/p-Si device to see the photodiode behavior as well as to determine light sensitivity parameters such as photosensitivity and detectivity. The results highlight that the Au/ZnO:Cr/p-Si device can be thought of for optoelectronic applications.

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Fabrication and Characterisation of ZnO Thin Film by Sol–Gel Technique

Cited by 5 publications

References 16 publications

Synthesis and Characterization of Deposited NiO Thin Films by Spray Pyrolysis Technique

Synthesis and Characterization of Deposited NiO Thin Films by Spray Pyrolysis Technique

The Effect of Co and Cu Co-Doping Zno Thin Films on Structural and Optical Properties

Investigation the Performance of Cr-Doped ZnO Nanocrystalline Thin Film in Photodiode Applications

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