Sami Elhag

ORCID: 0000-0001-5418-6363
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About
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Research Areas
  • ZnO doping and properties
  • Gas Sensing Nanomaterials and Sensors
  • Advanced Photocatalysis Techniques
  • Copper-based nanomaterials and applications
  • Conducting polymers and applications
  • Electrochemical sensors and biosensors
  • Electrochemical Analysis and Applications
  • Analytical Chemistry and Sensors
  • TiO2 Photocatalysis and Solar Cells
  • Electronic and Structural Properties of Oxides
  • Nanomaterials for catalytic reactions
  • Biosensors and Analytical Detection
  • Ga2O3 and related materials
  • Advanced Sensor and Energy Harvesting Materials
  • Advanced Technologies in Various Fields
  • Advanced biosensing and bioanalysis techniques
  • Organic Electronics and Photovoltaics
  • Energy, Environment, Economic Growth
  • Nanoparticles: synthesis and applications
  • Nanotechnology research and applications
  • Nanoparticle-Based Drug Delivery
  • Advanced Nanomaterials in Catalysis

Linköping University
2006-2023

University of Bahri
2023

Norrköping Hospital
2016-2019

GTx (United States)
2014

BioElectronics (United States)
2013

University of Calcutta
2013

University College Cork
2013

A polyanionic proton conductor, named poly(styrenesulfonic acid) (PSSH), is used to gate an organic field-effect transistor (OFET) based on poly(3-hexylthiophene) (P3HT). Upon applying a bias, large electric double layer capacitors (EDLCs) are formed quickly at the gate-PSSH and P3HT-PSSH interfaces due migration in polyelectrolyte. This type of robust transistor, called EDLC-OFET, displays fast response (<1ms) operates low voltages (<1V). The results presented relevant for...

10.1063/1.2358315 article EN Applied Physics Letters 2006-10-02

Abstract In this study, an effect of different concentrations urea on the morphology cobalt oxide (Co 3 O 4 ) nanostructures was investigated. The Co are fabricated gold coated glass substrate by hydrothermal method. morphological and structural characterization performed scanning electron microscopy, X‐ray diffraction techniques. exhibit flowers‐like have comprised nanowires due to increasing amount urea. were highly dense possess a good crystalline quality. successfully used for...

10.1002/elan.201400116 article EN Electroanalysis 2014-07-16

Ag-based compounds are excellent co-catalyst that can enhance harvesting visible light and increase photo-generated charge carrier separation owing to its surface plasmon resonance (SPR) effect in photoelectrochemical (PEC) applications. However, the PEC performance of a ZnO/Ag/Ag2WO4 heterostructure with SPR behavior has not been fully studied so far. Here we report preparation photo-electrode by low temperature hydrothermal chemical growth method followed successive ionic layer adsorption...

10.1039/c8ra10141h article EN cc-by RSC Advances 2019-01-01

In this study, ZnO nanorods (NRs) were hydrothermally grown on an Au-coated glass substrate at a relatively low temperature (90 °C), followed by the deposition of Ag2CrO4 particles via successive ionic layer adsorption and reaction (SILAR) route. The content NRs was controlled changing number SILAR cycles. fabricated ZnO-Ag2CrO4 heterojunction photoelectrodes subjected to morphological, structural, compositional, optical property analyses; their photoelectrochemical (PEC) properties...

10.1039/c9ra00639g article EN cc-by RSC Advances 2019-01-01

The use of templates to assist and possess a control over the synthesis nanomaterials has been an attractive option achieve this goal. Here we have used sodium dodecyl sulfate (SDS) act as template for low temperature cobalt oxide (Co₃O₄) nanostructures. SDS led tune morphology, product was in form "cotton-like" nanostructures instead connected nanowires. Moreover, variation amount found affect charge transfer process Co₃O₄. Using Co₃O₄ synthesized using sensing cholesterol investigated....

10.3390/ma8010149 article EN cc-by Materials 2014-12-31

We describe a chemical sensor based on simple synthesis of zinc oxide nanorods (ZNRs) for the detection dopamine molecules by potentiometric approach. The polar nature leads to change surface charges ZNR via metal ligand bond formation which results in measurable electrical signal. ZNRs were grown gold-coated glass substrate low temperature aqueous growth (ACG) method. Polymeric membranes incorporating β-cyclodextrin (β-CD) and potassium tetrakis (4-chlorophenyl) borate was immobilized...

10.3390/s140101654 article EN cc-by Sensors 2014-01-17

In this paper, we show that the possibility of using polyethylene glycol (EG) as a hydrogen source and it is used to assist hydrothermal synthesis ZnO nanorods (ZNRs). EG doping in ZNRs has been found significantly improve their optical chemical sensing characteristics toward glutamate. The was have no role on structural properties ZNRs. However, x-ray photoelectron spectroscopy (XPS) suggests could induce donor impurities effect ZnO. Photoluminescence (PL) UV-Vis. spectra demonstrated...

10.3390/s16020222 article EN cc-by Sensors 2016-02-06

Abstract Highly sensitive, selective, reliable and inexpensive cholesterol biosensors are highly demanded for the routine monitoring of molecules in order to prevent heart failure incidents. In this study, Co 3 O 4 nanostructures synthesized using polyvinyl pyrrolidone surfactant as growth template by a low temperature aqueous chemical method. The morphology was investigated scanning electron microscopy X‐ray diffraction techniques. exhibit interconnected nanowires like with network...

10.1002/elan.201400192 article EN Electroanalysis 2014-07-24

We demonstrate scalable, low-cost and low-temperature (&lt;100 °C) chemical growth of bismuth–zinc vanadate (BiZn<sub>2</sub>VO<sub>6</sub>) nanocompounds by BiVO<sub>4</sub> on ZnO nanobelts (NBs).

10.1039/c6ta10180a article EN Journal of Materials Chemistry A 2016-12-06

In this study, we focus on a simple, low-priced, and mild condition hydrothermal route to construct BiZn<sub>2</sub>VO<sub>6</sub>nanocompounds (NCs) as novel photocatalyst with strong solar light absorption ability for environmental purification.

10.1039/c8ra06896h article EN cc-by RSC Advances 2018-01-01

Nanoscale theragnosis is the biomedical aspect of nanomaterials for simultaneous diagnosis and therapy. The last decade was completely devoted by scientist to combine advancement in nanotechnology molecular biotechnology development future nanomedicine. approach started with target-specific delivery cargo imaging molecule or drugs applications. cutting edge advantages nanoscale materials (e.g., large surface volume ratio, size-shape dependent physicochemical properties multi-functionality...

10.5185/amlett.2015.1045 article EN Advanced Materials Letters 2015-02-01

Zinc oxide (ZnO) in its nanostructure form is a promising material for visible light emission/absorption and utilization different energy efficient photocatalytic processes. We will first present our recent results on the effect of varying molar ratio synthesis nutrients emission. Further we use optimized conditions from ration experiments to vary processing parameters like stirring time etc. all these order optimize efficiency control emission spectrum are investigated using complementary...

10.1117/12.2254872 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2017-02-24

We here demonstrate the synthesis of different nanostructures, including nanoparticles, nanorods, core-shell structures, and compound metal oxide nanostructures all synthesized by a low temperature chemical process. further investigated their photocatalytic properties for degradation toxic waste photochemical efficiency water splitting. All as well were utilized using sun radiation. The results presented indicate huge potential processes with positive impact to energy consumption benefits...

10.1117/12.2517436 article EN 2019-03-01

The length scale for nanomaterial is small enough to be invisible and presume innocence the initial avoidance of toxicity issues. Again it was beyond understanding time frame when nanotechnology just blooms that a itself might an important toxic parameter apart from its materialistic properties. We present this report address fundamental issues questions related nanotoxicity laboratory land applications. emphasize about basic nanoscale materials are regularly being used by scientific...

10.5185/amlett.2013.8002 article EN cc-by Advanced Materials Letters 2013-08-01

Highlights from research on different nanocomposites and nanostructures for sensing other energy related applications will be presented. The synthesized presented here were all obtained using the low temperature (< 100 °C) chemical approach. Nanostructures featured by small foot-print aqueous approach allows utilization of non-conventional solid soft substrates like e.g. glass, plastic, textile paper. We present results metal oxide employed some innovative applications. Efficient sensitive...

10.1117/12.2214513 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2016-02-27

In this work, Pure and aluminum doped zinc oxide nanostructures were successfully synthesized through a well-established hydrothermal method. The hexagonal wurtzite structure, nano porous shape for Al dopant in ZnO confirmed via XRD SEM analysis. reduction energy band gap (3.40 to 3.19 eV) samples enhancement inhibition zones (7 mm- 17 mm) pure Al-doped recorded. photocatalytic activity of was shown be several times more efficient than prior studies. these parameters suggest that materials...

10.15251/djnb.2023.183.995 article EN cc-by Digest Journal of Nanomaterials and Biostructures 2023-07-01
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