SILAR-coated Mg-doped ZnO thin films for ammonia vapor sensing applications

Devi, K. Radhi; Selvan, G.; Karunakaran, M.; Kasirajan, K.; Chandrasekar, L. Bruno; Shkir, Mohd.; AlFaify, S.

doi:10.1007/s10854-020-03564-8

Cited by 26 publications

(3 citation statements)

References 54 publications

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“…SILAR is a more appealing and cost-effective method of film synthesis. Concentration, pH value, the type of the complexion agent, temperature, deposition cycles, and other preparation factors are all easily adjustable [18][19][20].When it comes to creating thin films, the number of deposition cycles might be essential. The physical features of the samples may be modified by changing the number of cycles used to synthesis thin films [21].…”

Section: Introductionmentioning

confidence: 99%

The effect of deposition cycles on structural, morphological, optical and gas detection properties of Mg doped ZnO thin films

Abood

Sable

Yaseen

et al. 2023

J. Phys.: Conf. Ser.

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In this study, Mg doped ZnO thin films were successfully prepared using the modified SILAR approach throughout various numbers of deposition cycles. XRD data shows the prepared films have a ZnO wurtzite hexagonal structure. The crystalline size and crystallinity were found to be increased by increasing the number of deposition cycles. FESEM showed there are nanoparticles and nanorods on the surface, with random distribution in the case of the sample synthesized with 30 cycles, while the agglomeration of nanoparticles to form a maize-like structure and flower-like morphology was predominant in the case of the sample with 40 cycles. The UV-VIS transmittance spectra showed a decrease in transmittance by increasing the number of deposition cycles, and the increment of energy band gap by increasing the number of deposition cycles was found. The response of the samples towards NO2 gas at 200 °C operating temperature was found to be enhanced in the case of the sample prepared at 40 cycles as compared to the sample prepared at 30 cycles.

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Section: Introductionmentioning

confidence: 99%

The effect of deposition cycles on structural, morphological, optical and gas detection properties of Mg doped ZnO thin films

Abood

Sable

Yaseen

et al. 2023

J. Phys.: Conf. Ser.

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show abstract

“…ZnO coatings are considered, which are used in practice, e.g. in photocatalytic filters [23], [24], solar cells [25]- [27], gas sensors [28]- [30], medical devices [31], and other applications of modern electronics (including nanorods [32]- [36]).…”

Section: Introductionmentioning

confidence: 99%

Indentation of Thin Coatings: Theoretical and Experimental Investigation

Aizikovich

Nikolaev

Sadyrin

et al. 2022

WIT Transactions on Engineering Sciences

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An effective mathematical model is proposed for describing the experiment on indentation of samples with layered or functionally graded coatings. It is based on the solution of the contact problem of the theory of elasticity of indentation of a punch into elastic half-space with a coating. The results of mathematical modelling and experiments on indentation of the ZnO coating manufactured by the method of pulsed laser deposition on a silicon substrate are compared. The microgeometrical characteristics, as well as the chemical composition of the coating, were studied.

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“…Various ZnO nanostructures and morphologies like nanorods, thin films, nanowires, nanoflowers, nanoplates, nanospheres, nanotubes, nanofibers, nanoneedles, nanobelts, quantum dots and nanoribbons [9][10][11], have been synthesized by applying different physical and chemical methods including chemical vapour deposition, (RF) sputtering, hydrothermal, Sol-gel methods [9], pulsed laser deposition [12], spray pyrolysis [13], electrochemical deposition [14], chemical bath deposition [15], and SILAR deposition [16]. Among of chemical methods, the SILAR has many advantages such as low cost, easy process and can be deposited a large scale of thin films on different substrates at low deposition temperature including room temperature.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of ZnO Nanorods Structure for Drastically Enhancing Gas Sensing Response to NO2 Gas

et al. 2022

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In this report, zinc oxide thin film was successfully deposited on a glass substrate by using a simple and low-cost technique i.e. modified Successive Ion Layer Adsorption and Reaction (SILAR). Prepared zinc oxide thin film was characterized for its physical and chemical properties by using XRD diffraction, Field Emission Scanning Electron Microscopy (FESEM), energy dispersive spectroscopy (EDS), UV-VIS spectroscopy, Raman spectroscopy and Fourier transform infrared spectroscopy (FTIR). The results of structural and morphological properties show that the prepared film has wurtzite hexagonal structure with nanorods-like morphology. Gas sensing characteristics revealed that the prepared film was sensitive to NO2 gas. The response calculated at operating temperature 200 °C, was 1.37 when NO2 concentration was 10 ppm, the response increased when the NO2 concentration increased which reached to 2.16 when NO2 concentration was 80 ppm with short response and recovery time. HIGHLIGHTS Nanorods- like morphology of ZnO were fabricated via modified SILAR technique The ZnO nanorods exhibit high sensitive and short response/ recovery time for NO2 gas at operating temperature i.e. 200 °C The synthesis method and sensing behavior of synthesized ZnO nanorods- like morphology, revealed a promising candidate for fabricating low-consumption gas sensors GRAPHICAL ABSTRACT

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SILAR-coated Mg-doped ZnO thin films for ammonia vapor sensing applications

Cited by 26 publications

References 54 publications

The effect of deposition cycles on structural, morphological, optical and gas detection properties of Mg doped ZnO thin films

The effect of deposition cycles on structural, morphological, optical and gas detection properties of Mg doped ZnO thin films

Indentation of Thin Coatings: Theoretical and Experimental Investigation

Fabrication of ZnO Nanorods Structure for Drastically Enhancing Gas Sensing Response to NO2 Gas

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