Synthesis, characterisation and gas sensing application of nano ZnO material

Deore, M. K.; Jain, G. H.

doi:10.1504/ijnp.2014.062033

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…The average grain size are calculated from XRD data and using Debye scherer's formula [9], D = 0.94 λ / β cosθB Where, λ = wavelength of x-ray (1.542 A) Β = full width at half maximum of the diffraction peaks in radians (0.3) θB = Bragg's angle in degrees (17.2 ) For calculating grain size, FWHM of only highest intensity reflection was considered. Fig.…”

Section: Fig1 X-ray Diffraction Patternmentioning

confidence: 99%

“…Several researchers has already done more work on zinc oxide in the last few decades, but still it is one of the favorite conducting oxide for the variety of applications such as optoelectronics, gas sensors, light emitting diodes, photo detectors, liquid crystal displays, solar cells [9,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…To improve ZnO properties many growth techniques are used such as chemical bath deposition [5], hydrothermal [9], spin coating [10]…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization and Antibacterial Application of ZnO Thin films

Patil¹

2021

IJMTST

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The objective of this study is to synthesize ZnO nano particles in form thin film on glass substrate and study antibacterial active of such films. ZnO thin films were prepared by spray pyrolysis technique using zinc acetate and isopropyl alcohol as precursor in the temperature range 375̊C to 425̊C. The optical properties of the film were studied on UV/VIS/NIR spectrophotometer. The energy gap of the film is evaluated and it is found to be 3.31 eV. The polycrystalline nature of the ZnO film was confirmed by structural analysis by Xray diffraction method and the grain size is determined. It is found to be 50nm. The electrical resistivity of the film was measured by four probe method at different temperatures and it is found that electrical resistivity varying in the range 103 to 104 Ω–cm. we studied the antibacterial activity of ZnO thin film against gram-negative bacteria. Escherichia coli (E- coli) were used as test micro organisms. It is found that ZnO film enhanced the significant antibacterial activity.

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Section: Fig1 X-ray Diffraction Patternmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis, Characterization and Antibacterial Application of ZnO Thin films

Patil¹

2021

IJMTST

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“…7. In this system, the oxide sensor is fixed in a closed glass chamber having a nanostructures was investigated using different gases such as CO 2 , ethanol, H 2 S, NH 3 , acetone, and NO 2 using the following equation [33,34]:…”

Section: Gas Sensing Performance Of Sn-doped Lacro 3 Nanostructure Thmentioning

confidence: 99%

Modified Sn-doped LaCrO3 nanostructures: focus on their characterization and applications as ethanol sensor at a lower temperature

Shinde

Sawant

Kapadnis³

2019

J Nanostruct Chem

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The present work emphasizes the effect of the use of Sn, with different concentrations, over the structural properties and sensing applications of LaCrO 3 . In this work, LaCrO 3 nanostructures were modified with different concentration of Sn (0.2 M %, 0.4 M %, 0.6 M % and 0.8 M %).Different modified Sn-doped LaCrO 3 was synthesized by sol-gel method and followed by preparation of thick films via a conventional screen printing approach. The characterizations done by means of X-ray diffraction (XRD), energy-dispersive X-ray (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) revealed the confirmation of a Sn-doped LaCrO 3 crystal structure and its morphology, respectively. These oxides were formulated to identify various air pollutants such as CO 2 , ethanol, H 2 S, NH 3 , NO 2, and acetone. The Sn-doped LaCrO3 with 0.4 M % Sn displayed higher gas response to ethanol vapor at the range of 150-250 °C. The sensors additionally demonstrated proper recovery and acceptable stability. Graphic abstractThe graphical abstract demonstrates the in situ synthesis of Sn-doped LaCrO 3 by sol-gel method. Similarly, it shows its characterization and finally, the thick films of doped Sn demonstrate best selectivity for ethanol.Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creat iveco mmons .org/licen ses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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“…The ratio of the inorganic to organic part was kept at 75:25 in formulating the paste. This paste was screenprinted [15]- [16] on a glass substrate in a desired pattern (1.5cm x 0.5cm). The films were fired at 550 o C for 30 min.…”

Section: Preparation Of Thick Filmsmentioning

confidence: 99%

Studies on Physical and Electrical Characterization of Al2O3-ZnO Composite Material and its Thick Films

2015

IJSR

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Al 2 O 3-ZnO composite material was obtained by adding the Aluminium chloride (AlCl 3 •6H 2 O) (Hexahydrate) powder of different weight percent (0.5, 1 3, 5 and 7 wt %) and Analar Reagent grade (99.9 % pure) ZnO powder by mixing mechnochemically in acetone medium. The prepared materials were sintered at 1000 o C for 12h in air ambience and ball milled to ensure sufficiently fine particle size. The structural properties of the powder materials were investigated by X-ray diffraction analysis. The observed powder materials show the polycrystalline nature and the crystallite size found to be in the range of 10 to 36 nm. The thick films of undoped ZnO and Al 2 O 3 doped-ZnO were prepared by screen printing technique. The surface morphology of the films was studied by SEM and it shows the films are porous in nature and petal-shaped grains of sizes varies from 190nm to 276nm were observed. The final composition of each film was determined by EDAX analysis.The At. wt. % of Zn and O in each sample was not as per stoichiometric proportion. The electrical conductivity and activation energy of all films were determined.

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Synthesis, characterisation and gas sensing application of nano ZnO material

Cited by 7 publications

References 28 publications

Synthesis, Characterization and Antibacterial Application of ZnO Thin films

Synthesis, Characterization and Antibacterial Application of ZnO Thin films

Modified Sn-doped LaCrO3 nanostructures: focus on their characterization and applications as ethanol sensor at a lower temperature

Studies on Physical and Electrical Characterization of Al2O3-ZnO Composite Material and its Thick Films

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