A5059563816- Graphene research and applications
- Molecular Junctions and Nanostructures
- Magnetic properties of thin films
- Corrosion Behavior and Inhibition
- Electrochemical Analysis and Applications
- Metal and Thin Film Mechanics
- Hydrogen embrittlement and corrosion behaviors in metals
- Force Microscopy Techniques and Applications
- Diamond and Carbon-based Materials Research
- Carbon Nanotubes in Composites
- Surface and Thin Film Phenomena
- Electron and X-Ray Spectroscopy Techniques
- Metallic Glasses and Amorphous Alloys
- Chemical and Physical Properties of Materials
- Electrodeposition and Electroless Coatings
- Semiconductor materials and devices
- Iron oxide chemistry and applications
- Transition Metal Oxide Nanomaterials
- Magnetic Properties and Applications
- ZnO doping and properties
- Adhesion, Friction, and Surface Interactions
- 2D Materials and Applications
- nanoparticles nucleation surface interactions
- Mechanical and Optical Resonators
- Characterization and Applications of Magnetic Nanoparticles
University of Łódź
2013-2023
Northumbria University
2003-2006
Polish Academy of Sciences
1983-1994
Institute of Physical Chemistry
1983-1994
National Veterinary Research Institute
1988-1991
The overprints produced in inkjet technology with graphene oxide dispersion are presented. ink is developed to be fully compatible standard industrial printers and polyester substrates. Post-printing chemical reduction procedure proposed, which leads the restoration of electrical conductivity without destroying substrate. presented results show outstanding potential for rapid cost efficient commercial implementation production flexible electronics. Properties graphene-based electrodes...
Abstract The influence of intrinsic defects 1T-TaS 2 on charge density waves (CDWs) is studied using scanning tunneling microscopy and spectroscopy (STM, STS), angle-resolved photoelectron (ARPES), functional theory (DFT). We identify several types structural find that most have a local character limited to single CDW site, with exception which effectively behaves as dopant, leading band-bending affecting multiple neighboring sites. While only one type defect can be observed by STM...
Graphene devices require electric contacts with metals, particularly gold. Scanning tunneling spectroscopy studies of electron local density states performed on mono-, bi-, and trigraphene layer deposited metallic Au/Cr/SiO2/Si substrate shows that gold causes the Fermi level shift downwards which means holes are donated by metal to graphene becomes p-type doped. These experimental results in good accordance recently published function theory calculations.
The kinetics of passive film formation on iron in borate buffer solution has been studied at different anodic potentials. process growth found to occur four distinct stages. About 80–90% the total thickness formed 1h grows during initial two stages which last for only 1–3s (depending upon potential). electric field strength across is not constant but decreases with progressing growth. determined ellipsometrically less than that calculated from charge consumed. accompanied by dissolution...
We present evidence that ultra-thin Bi(110) nanostructures oxidise from the edges, and their top surfaces remain unoxidised. Even after prolonged oxidation, clean (unoxidised) bismuth is in are less than 5 monolayers thick. Since (110) surface of bulk known to be readily oxidised, this strong for a thin film allotrope bismuth. comparison with calculated structures polymeric nitrogen, which suggests one several complex or hybrid paired-layer structures.
The resistive switching processes are investigated at the nano-scale in graphene oxide. modification of material resistivity is driven by electrical stimulation with tip atomic force microscope. presence water atmosphere surrounding oxide found to be a necessary condition for occurrence effect. In consequence, related an electrochemical reduction. Presented results suggest that changing humidity level in-plane resolution data storage process can controlled. These findings essential when...
Graphene oxide or reduced graphene oxide-TiO2 (TGO TRGO) nanocomposites were decorated with Ag nanoparticles (AgNPs) using the photoreduction method. The photocatalytic growth of AgNPs on TGO and TRGO was compared, while keeping other parameters (i.e., thickness, chemical composition, crystalline structure percentage an area TiO2 covered by GO RGO flakes) unchanged. morphology, composition TGO-Ag TRGO-Ag investigated use SEM-EDS, XPS Raman spectroscopy. found to be distributed surface...
Abstract We report on van der Waals epitaxy of two-dimensional (2D) molybdenum trioxide (MoO 3− x ) with monolayer thickness directly grown highly oriented pyrolytic graphite by thermal evaporation under ultrahigh vacuum. The chemical composition, electronic and crystalline lattice structures the mono-and few-layer MoO sheets are analysed. Using scanning tunnelling microscopy spectroscopy, we investigate properties as a function number layers measure apparent energy gap to be 0.4 eV for...
Molybdenum trioxide shows many attractive properties, such as a wide electronic band gap and high relative permittivity. Monolayers of this material are particularly important, they offer new avenues in optoelectronic devices, e.g., to alter the properties graphene electrodes. Nanoscale electrical characterization is essential for potential applications monolayer molybdenum trioxide. We present conductive atomic force microscopy study an epitaxially grown 2D oxide layer on graphene-like...
The results of optical investigation hydrogenated epitaxial bilayer graphene are presented. A softening and an increase the intensity in-plane anti-symmetric phonon mode observed at 0.2eV. It is suggested that they both originate from coupling optically active to virtual electronic transitions, which related band structure leads “charged phonon” effect. In addition, it noted peaks have pronounced Fano shapelines. argued shapeline attributed interaction with a continuum transitions in valence...