A5076309462- Graphene research and applications
- ZnO doping and properties
- Organic Electronics and Photovoltaics
- Carbon Nanotubes in Composites
- Molecular Junctions and Nanostructures
- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced biosensing and bioanalysis techniques
- Electronic and Structural Properties of Oxides
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Catalytic Processes in Materials Science
- Graphene and Nanomaterials Applications
- Semiconductor materials and devices
- Organic Light-Emitting Diodes Research
- Copper-based nanomaterials and applications
- Advanced Nanomaterials in Catalysis
- Magnetic and transport properties of perovskites and related materials
- Thermal properties of materials
- Nanomaterials for catalytic reactions
- Electrochemical sensors and biosensors
- 2D Materials and Applications
- Thermal Radiation and Cooling Technologies
- Supramolecular Self-Assembly in Materials
Western University
2016-2022
Transnational Press London
2017-2021
University of Saskatchewan
2010-2018
Saskatoon Medical Imaging
2015-2016
Reversibility of disulphide formation and breakage on<sc>l</sc>-cysteine examined through vibrational modes using<italic>in situ</italic>Raman spectroscopy.
Abstract The electronic structure and chemical bonding of three differently prepared samples graphene oxide paper‐like sheets are studied. Two created by water filtration fully oxidized sheets, although one is later intercalated with dodecylamine. third reducing hydrazine hydrate. spectroscopic fingerprints the aligned epoxide functional groups that unzip carbon basal plane found. This unzipping appears to be a result aging, extent which unzipped can controlled via preparation method. In...
Artificial enzyme mimics have gained considerable attention for use in sensing applications due to their high stability and outstanding catalytic activity. We show that cerium oxide nanosheets (NSs) exhibit triple-enzyme mimetic The oxidase-, peroxidase-, catalase-like activities of the proposed nanoparticles are demonstrated using both colorimetric electron paramagnetic resonance (EPR) spectroscopy. On basis excellent activity NSs toward hydrogen peroxide, an electrochemical approach...
A SnO<sub>x</sub>/Au/SnO<sub>x</sub> transparent conductive oxide (TCO) multilayered film was fabricated with a total thickness of 75 nm using both e-beam and thermal evaporation techniques.
Cobalt nanoclusters on graphene spontaneously form CoO at very low thickness, which is converted to Co[OH]<sub>2</sub>when layers are formed.
We report on the magnetic and electronic properties of Co-doped CeO2 oxides prepared by a solid-state reaction. The as-prepared samples exhibit pure paramagnetic behavior, but postannealing at 450 °C for 1 h under H2/N2 atmosphere results in appearance ferromagnetism room temperature. structure postannealed diluted is investigated using soft X-ray absorption emission spectroscopy. Co L-edge resonant inelastic scattering (RIXS) spectra indicate that direct Co−Co bonds form due to...
A new generation of membranes for water purification based on weakly oxidized and nanoporous few-layer graphene is here introduced. These dramatically decrease the high energy requirements by reverse osmosis. They combine advantages porous non-oxidized single-layer graphene, offering energy-efficient filtration at relatively low differential pressures, highly oxide, exhibiting performance in terms impurity adsorption. In reported fabrication process, leaks between juxtaposed flakes are...
Sputtered ZnO thin films doped with Nd present efficient down-shifting properties.
We describe a divergent synthetic strategy based on ATRP and CuAAC chemistry for the production of stable radical polymers. As proof concept, we prepare verdazyl polymers with properties suitable use in organic electronics.
Embedding luminescent rare earth ions into transparent oxides such as ZnO is a well-known approach to functionalize the material by adding photon-management properties. In this paper we present detailed study of luminescence properties and energy level structure Pr3+ Yb3+ embedded in thin films deposited magnetron reactive sputtering. Careful photoluminescence excitation spectra allowed identifying locating almost all excited levels ions. Thus, an complete electronic diagram these crystal...
Sensing of metal contaminants at ultralow concentrations in aqueous environments is vital today's overpopulated world, with an extremely stringent limit (<5 ppb) for Cd2+ ions drinking water. Here, we utilize sonochemically exfoliated molybdenum disulfide (MoS2) nanosheets functionalized l-cysteine (Cys) as highly sensitive and selective two-dimensional (2D) materials solid-state chemiresistors. We specifically targeted due to their high toxicity low concentrations. MoS2-Cys are fabricated...
p and n type SnO<sub>x</sub> thin films are successfully functionalized with optically active Nd<sup>3+</sup> ions for efficient UV photon conversion.
Presented here is a study of the molecular self-ordering properties four bis(phenylethynyl) anthracene based organic semiconductors related to their electronic structure employing X-ray spectroscopy techniques and density functional theory (DFT) calculations. The local order through polarization dependence C 1s → π* transitions revealed ordered π-stacking nearly perpendicular substrate due van der Waals interactions between alkyl groups. DFT calculations were used deconvolute measured...
Here, we present a novel model to predict the toxicity and bioavailability of polychlorinated biphenyls (PCBs) as compounds based on first principles approach targeting basic electronic characteristics. The predictive is an initio density functional theory. suggests HOMO-LUMO energy gap overarching indicator PCBs toxicity, which was shown be primary factor predicting but not only factor. clearly explains why chlorination both para positions required for maximum toxic potency. To rank...
This study reports a scalable and economical method to open band gap in single layer graphene by deposition of cobalt metal on its surface using physical vapor high vacuum. At low thickness, clusters form at impurity sites the without etching or damaging graphene. When exposed oxygen room temperature, functional groups proportion thickness that modify structure. Cobalt/Graphene resulting from this treatment can support 0.30 eV, while remaining largely undamaged preserve structural electrical...