A5012373536- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- ZnO doping and properties
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Soil Geostatistics and Mapping
- Electrochemical Analysis and Applications
- Semiconductor materials and interfaces
- Spectroscopy and Laser Applications
- Polydiacetylene-based materials and applications
- Advanced Semiconductor Detectors and Materials
- Transition Metal Oxide Nanomaterials
- Electrodeposition and Electroless Coatings
- Electrical and Thermal Properties of Materials
- Geophysical Methods and Applications
- Remote-Sensing Image Classification
University of Carthage
2016-2024
Carthage College
2020
The dynamic response of In<sub>2</sub>S<sub>3</sub> films to 4000 ppm methanol, ethanol and acetone at 350 °C for thicknesses varying from 0.8 μm 6.1 μm.
This work reports on the integration of ZnO pellets for use as a virtual sensor array (VSA) volatile organic compounds (VOCs).
Metal sulfides have been studied for their high performance as new sensitive materials gas detection.
In2S3 indium sulfide thin films were deposited on glass substrates by chemical reactive pulverization in liquid phase at substrate temperature of 300 °C. The layers obtained characterized x-ray diffraction (XRD), Raman spectroscopy, spectrophotometry and photoluminescence (PL). In this work, photoconductivity study was conducted using white light source (halogen lamp) red laser (λ = 655 nm). This shows that the photocurrent follows power law with change irradiance linear as function bias...
In this work, an innovative approach based on the combination of hierarchical ascending classification (HAC) and principal component analysis (PCA) is proposed to discriminate individual vapors such as methanol, toluene, acetone, isopropanol, ethanol using dynamic responses one single sensor 5, 10, 15, 20 tetratoloylphenylporphyrinato Zn (II) (ZnTTP) at room temperature. Experimental data measurements individuals (i.e., four different concentrations each vapor) extraction new mathematical...
In the present work, structural and morphological of 5, 10, 15, 20 tetratoloylphenylporphyrinato Zinc (II) (ZnTTP) thin films prepared by spin coating on low cost glass substrate have been investigated using X-ray photoelectron spectroscopy (XPS) atomic force microscopy (AFM). At room temperature, electrical responses ZnTTP were measured under five reducing volatile organic compounds, including toluene, acetone, methanol, ethanol, isopropanol. The obtained results indicate that behaves as a...
CuS-CuO nanoparticles were prepared by air annealing as-made CuS deposited using spray pyrolysis. The optical, structural, and morphological properties of samples investigated UV–VIS Spectroscopy, X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force (AFM). XRD analysis as-prepared sample include two phases Cu2S, while annealed films are a mixture CuO phases. dimensions the crystallites estimated Williamson's method on peaks (81 nm) ones statistically evaluated via SEM...
Soil spectroscopy offers a method for quantitatively analysing soil chromophores and employing screening approach. However, utilizing general models with this data at once doesn't consistently yield accurate results in determining parameters. Ambiguities response within certain domains of the reflectance spectrum are observed. To address issue, is proposed where quantities associated spectral outputted well-defined corresponding to specific This article introduces novel approach centred on...
This work reports the manufacture and characterization of α-Fe2O3 thin thick films grown on glass substrates at 350°C using chemical spray technique subsequently modified by thermal annealing 450°C. The Crystalline structure, surface morphology optical properties were investigated. decreases film thickness affect all physical improving optical, structural mostly ethanol sensing wherein we note an improvement response from 4 under 5000 ppm for layer to 13 only 100 layer.We also this layer,...
We have accelerated the ageing of CuAlS2 by application a static electrical field for different degradation times. investigated admittance spectroscopy and scanning electron microscopy to follow understand (mass-charge) coupled transport processes produced in volume on surface these films. The constraint induces, after an incubation phase, activated decrease resistance, followed susbstantial increase correlated formation open circuit. This occurs more rapidly films having initially lower due...