A5054929287- Diamond and Carbon-based Materials Research
- Force Microscopy Techniques and Applications
- Semiconductor materials and interfaces
- Advanced Surface Polishing Techniques
- Chalcogenide Semiconductor Thin Films
- Semiconductor materials and devices
- Surface and Thin Film Phenomena
- Advanced Chemical Physics Studies
- Electrodeposition and Electroless Coatings
- Copper-based nanomaterials and applications
- Advanced Materials Characterization Techniques
- Luminescence Properties of Advanced Materials
- Electrochemical Analysis and Applications
- Terahertz technology and applications
- Metal and Thin Film Mechanics
- Radiation Detection and Scintillator Technologies
- Laser Material Processing Techniques
- Copper Interconnects and Reliability
- Plasmonic and Surface Plasmon Research
- Nanomaterials for catalytic reactions
- nanoparticles nucleation surface interactions
- Metallic Glasses and Amorphous Alloys
- Magnetic properties of thin films
- Perovskite Materials and Applications
- Lubricants and Their Additives
Advanced Research Center for Nanolithography (Netherlands)
2020-2024
Amsterdam University of Applied Sciences
2021
In this work, high resolution integrated AFM–EC/SECM was used to reveal the spatially heterogeneous electroactivity of microcrystalline diamond (MCD) and nanocrystalline (NCD) surfaces. During electrochemical corrosion, NCD surfaces undergo a stronger corrosion reaction than MCD because higher amount sp2 hybridized carbon. In-situ EC-AFM imaging shows no significant change in surface morphology, while corroded become more hydrophilic due oxidation reactions that occur outermost layer. On...
The influence of corrosion upon the nanoscale topography and friction response a hydrogenated amorphous carbon film (a-C:H) was investigated. Electrochemical atomic force microscopy used to characterise topographical changes coating at two oxidative potentials. Corrosion 1.5 V (corrosion rate 0.5 nm h−1) resulted in no topography; whereas 2.5 26.4 caused root mean square roughness a-C:H decrease, but local fine-scale irregularity or 'jaggedness' surface increase. X-ray photoelectron...
To effectively manipulate the electronic structure of catalysts, we present here a simple bottom-up synthesis protocol for agglomerating palladium and cuprous oxide ultrasmall nanoclusters into single nanoparticles, forming so-called quantum dot assemblies (QDAs). Our is based on galvanic displacement copper with cations under O2-free conditions, rendering simultaneous unique crystal growth ∼3 nm Cu2O Pd clusters. Such assemblies, comprising nanoconstitutes, offer much more phase boundaries,...
We demonstrate emission of electromagnetic pulses with frequencies in the terahertz (THz) range from ruthenium thin films through a second-order nonlinear optical process. Ruthenium deposited on different substrates showed THz properties. provide evidence that for Ru glass above certain power threshold, laser-induced oxidation occurs, resulting an increased slope linear dependence electric field amplitude pump power. The is mainly polarized parallel to sample surface, pointing same direction...
The phase and composition of several transition metal silicides are challenging to identify with common surface analysis techniques such as X-ray photoelectron spectroscopy (XPS). While silicide formation is concomitant a distinct change in electronic structure, only minute changes the main spectral features observed for example family Ru silicides. Here, authors combine XPS, grazing-incidence diffraction, density functional theory calculations demonstrate that characteristic excitation...
We describe a method that can be used to produce ruthenium/ruthenium oxide patterns starting from ruthenium thin film. The is based on highly localized oxidation of small surface area film by means exposure pulsed laser under ambient conditions. Laser followed dissolution the un-exposed in NaClO solution, which leaves conductive, partially oxidized substrate. Spatially selective oxidation, material removal, and, implication, patterning, are, therefore, achieved without need for photoresist...
This work investigates the coverage dependent stability of silicon and oxygen on ruthenium, extending from defect centers in ruthenium bulk to adsorption Ru(0001) surface.
Abstract Mechanochemical reactions at the sliding interface between a single-crystalline silicon (Si) wafer and silica (SiO 2 ) microsphere were studied in three environmental conditions: humid air, potassium chloride (KCl) solution, KCl solution with an applied voltage. Compared to that from mechanochemical material removal surface increased substantially KCl-immersed condition, further when electrochemistry was introduced into tribological system. By measuring load dependence of rate...
Free-standing layers of nanoscale thickness are essential in numerous applications but challenging to fabricate for all a small selection materials. We report versatile, chemical-free pathway exfoliating centimeter-sized free-standing nanolayers from Si(100) with native oxide based on the spontaneous delamination thin Ru and Ru-based films upon annealing at temperatures as low 400 \ifmmode^\circ\else\textdegree\fi{}C. Combining results x-ray photoelectron spectroscopy (XPS), transmission...
Inorganic-Organic lead halide materials have been recognized as potential high-energy X-ray detectors because of their high quantum efficiencies and radiation hardness. Surprisingly little is known about whether the same true for extreme-ultraviolet (XUV) radiation, despite applications in nuclear fusion research astrophysics. We used a table-top high-harmonic generation setup XUV range between 20 45 eV to photoexcite methylammonium bromide (MAPbBr3) measure its scintillation properties. The...
<italic>In situ</italic> and <italic>ex atomic force microscopy was used to investigate crystal growth in copper electro-crystallization localized directed by a moving nanoelectrode close proximity gold substrate highly dilute electrolyte.
In this work, high resolution integrated AFM–EC/SECM was used to reveal the spatially heterogeneous electroactivity of microcrystalline diamond (MCD) and nanocrystalline (NCD) surfaces. During electrochemical corrosion, NCD surfaces undergo a stronger corrosion reaction than MCD because higher amount sp 2 hybridized carbon. In-situ EC-AFM imaging shows no significant change in surface morphology, while corroded become more hydrophilic due oxidation reactions that occur outermost layer. On...
The phase and composition of several transition metal silicides are challenging to identify with common surface analysis techniques such as X-ray photoelectron spectroscopy (XPS). While silicide formation is concomitant a distinct change in electronic structure, only minute changes the main spectral features observed for example family Ru silicides. Here, authors combine XPS, grazing-incidence diffraction, density functional theory calculations demonstrate that characteristic excitation...