Ahmad Telfah

ORCID: 0000-0003-1478-8620
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Conducting polymers and applications
  • ZnO doping and properties
  • Polymer Nanocomposite Synthesis and Irradiation
  • Advanced Sensor and Energy Harvesting Materials
  • Gas Sensing Nanomaterials and Sensors
  • Metabolomics and Mass Spectrometry Studies
  • Analytical Chemistry and Sensors
  • Organic Electronics and Photovoltaics
  • Advanced Battery Materials and Technologies
  • Photochromic and Fluorescence Chemistry
  • Copper-based nanomaterials and applications
  • Polymer Nanocomposites and Properties
  • Heusler alloys: electronic and magnetic properties
  • Advanced Thermoelectric Materials and Devices
  • Electrochemical Analysis and Applications
  • Chalcogenide Semiconductor Thin Films
  • Gold and Silver Nanoparticles Synthesis and Applications
  • NMR spectroscopy and applications
  • Advanced Photocatalysis Techniques
  • TiO2 Photocatalysis and Solar Cells
  • Advanced MRI Techniques and Applications
  • Fuel Cells and Related Materials
  • Advanced NMR Techniques and Applications
  • Plasmonic and Surface Plasmon Research
  • Ga2O3 and related materials

University of Nebraska at Omaha
2023-2025

University of Jordan
2019-2025

Dortmund University of Applied Sciences and Arts
2024

Yarmouk University
2022-2024

Leibniz Institute for Analytical Sciences - ISAS
2015-2024

Kirchhoff (Germany)
2015-2023

University of Minho
2023

Jordan University of Science and Technology
2022

TU Dortmund University
2022

King Hussein Medical Center
2015

We synthesize and optically characterize pure PMMA incorporated with metal oxides nanoparticles (MO NPs) such as ZnO, CuO, TiO2 SiO2 NPs nanocomposite thin films weight concentration of 10% using dip-coating technique. SEM images MO show that all have nearly an average size around 50 nm. The optical parameters as, (n k), optoelectronics properties, dispersion, band-gap energy band structure as-prepared were determined by analyzing the transmittance reflectance spectra. Mainly, (Eg) thickness...

10.1016/j.heliyon.2021.e05952 article EN cc-by Heliyon 2021-01-01

Sol-gel technique is used to synthesize as-grown zinc oxide (ZnO) and iron-nickel (Fe-Ni) co-doped ZnO thin films deposited on glass substrates using dip coating technique. The structural properties crystal imperfections of as-prepared are investigated. We performed the analysis X-ray diffraction (XRD). XRD reveal that exhibit wurtzite structure. Furthermore, XRD-line profile study correlation between nanocomposite films. crystallite size microstrains parameters predicted Williamson-Hall...

10.3390/ma13071737 article EN Materials 2020-04-08

We report the synthesis and characterization of pure ZnO, CeO2, ZnO:CeO2 mixed oxide thin films dip-coated on glass substrates using a sol-gel technique. The structural properties as-prepared film are investigated XRD In particular, ZnO is found to exhibit hexagonal structure, while CeO2 fluorite cubic structure. diffraction patterns also show formation materials containing well-dispersed phases semi-crystalline nature from both constituent oxides. Furthermore, optical by performing UV–Vis...

10.3390/photonics7040112 article EN cc-by Photonics 2020-11-18

We propose a novel derived optical model fitted to the experimental transmittance of PVC-PS hybrid thin films doped with Silica nanoparticles. The are synthesized using simple dip-coating method. has successfully interpreted spectral behaviour amorphous semiconductors and dielectric films. Interestingly, our reproduces parameters investigated in good agreement those predicted by Tauc plot. great advantage proposed over other models lies its ability explain correlations between film thickness...

10.1016/j.heliyon.2020.e04177 article EN cc-by Heliyon 2020-06-01

This study introduces a novel nanocomposite coating composed of PANI/CeO2 films, aimed at addressing corrosion protection needs. Analysis through FTIR spectra and XRD patterns confirms the successful formation films. Notably, films exhibit hydrophilic nature. The bandgap energy PANI composite film is measured to be 3.74 eV, while introduction CeO2 NPs into matrix reduces 3.67 eV. Furthermore, electrical conductivity observed 0.40 S·cm−1, with incorporation leading an increase in 1.07 S·cm−1....

10.3390/nano14060526 article EN cc-by Nanomaterials 2024-03-15

The complex cell metabolism and its link to oncogenic signaling pathways have received huge interest within the last few years. But lack of advanced analytical tools for investigation living is still a challenge be faced. Therefore, we designed fabricated novel miniaturized microslot NMR detector with on-board heater integrated microfluidic device as sample holder. For first time, tumor spheroid 500 μm diameter consisting 9000 cells has been studied noninvasively online 24 h. dynamic...

10.1021/acs.analchem.5b01603 article EN Analytical Chemistry 2015-06-29

We report on the synthesis and characterization of Cu2ZnSnS4 (CZTS) thin films prepared at different annealing temperatures using sol-gel method deposited glass substrates immersing method. The XRD analysis demonstrates that annealed 450 °C exhibit most stable tetrahedral kesterite structure. Computationally, Vienna ab initio simulation package (VASP) has been implemented to calculate critical structural properties as-prepared CZTS) compared with those extracted from patterns. An excellent...

10.1016/j.heliyon.2021.e08683 article EN cc-by-nc-nd Heliyon 2021-12-28

Wide-field surface plasmon resonance microscopy (WF-SPRM), based on Kretschmann's configuration, is a powerful technique for detecting nano-objects in solution. In this study, key parameters building highly sensitive WF-SPRM are optimized, including laser wavelength, prism refractive index, numerical aperture of the objective, and gold layer thickness. A medium model describes (SPR) sensor principle, treating molecules bound as an effective with index On other hand, SPR discrete particle...

10.1016/j.sna.2024.115266 article EN cc-by Sensors and Actuators A Physical 2024-03-08

Spectral dispersion in low-field nuclear magnetic resonance (NMR) can significantly affect NMR spectral analysis, particularly when studying complex mixtures like metabolic profiling of biological samples. To address signal superposition these spectra, we employed editing with selective excitation pulses, proving it to be a suitable approach. Optimal control pulses were implemented and demonstrated their capability selectively excite eliminate specific amino acids, such as phenylalanine...

10.1021/acs.analchem.3c05226 article EN Analytical Chemistry 2025-01-22

Aluminum Nitrides (AlN) thin films have been deposited ‎on glass substrates using DC-magnetron sputtering technique for different back pressure. The piezoelectric and related properties of highly c-axis oriented AlN fabricated by dc planar magnetron calculated. Experimental results show that can be sputtering. X-ray powder diffraction (XRD) shows exhibit a hexagonal structure. Vienna Ab initio Simulation Package (VASP) within the framework density functional theory (DFT) generalized gradient...

10.3389/fphy.2020.00115 article EN cc-by Frontiers in Physics 2020-05-05
Coming Soon ...