A5025627945- Advanced X-ray Imaging Techniques
- Magnetic properties of thin films
- Force Microscopy Techniques and Applications
- Advanced X-ray and CT Imaging
- X-ray Diffraction in Crystallography
- Lipid Membrane Structure and Behavior
- Metal and Thin Film Mechanics
- Multiferroics and related materials
- ZnO doping and properties
- Organic Electronics and Photovoltaics
- Dielectric properties of ceramics
- Non-Destructive Testing Techniques
- Advanced Electron Microscopy Techniques and Applications
- Magnetic Properties and Applications
- Conducting polymers and applications
- Magnetic and transport properties of perovskites and related materials
- Electrochemical Analysis and Applications
- Quantum Dots Synthesis And Properties
- X-ray Spectroscopy and Fluorescence Analysis
- Microstructure and Mechanical Properties of Steels
- Microstructure and mechanical properties
- Ferroelectric and Piezoelectric Materials
- Radiation Detection and Scintillator Technologies
- Electronic and Structural Properties of Oxides
- Molecular Junctions and Nanostructures
Fachhochschule Kiel
2019-2025
Kiel University
2019-2024
Deutsches Elektronen-Synchrotron DESY
2024
Abstract Following the reaction of biological membranes to external stimuli reveals fundamental insights into cellular function. Here, self-assembled lipid monolayers act as model containing photoswitchable azobenzene glycolipids for investigating structural response during isomerization by combining Langmuir isotherms with X-ray scattering. Controlled in-situ trans/cis photoswitching N = double bond alters DPPC monolayer structure, causing reproducible changes in surface pressure and layer...
Liquid-liquid interfaces offer intriguing possibilities for nanomaterials growth. Here, fundamental interface-related mechanisms that control the growth behavior in these systems are studied Pb halide formation at interface between NaX + PbX2 (X = F, Cl, Br) and liquid Hg electrodes using situ X-ray scattering complementary electrochemical microscopy measurements. These studies reveal a decisive role of species nucleation compounds. In Cl- Br-containing solution, deposition starts by rapid...
The nature of self-organized three-dimensional structured architectures with spatially modulated electrical conductivity emerging in the process hydride vapor phase epitaxial growth single crystalline n-GaN wafers is revealed by photoelectrochemical etching. amplitude carrier concentration modulation throughout sample derived from photoluminescence analysis and localized heterogeneous piezoelectric response demonstrated. formation such rationalized based on generation V-shaped pits their...
Abstract Novel devices ranging from bio magnetic field sensors to energy harvesting nano machines utilize the piezotronic effect. For optimal function, understanding interaction of electrical and strain phenomena within semiconductor crystal is necessary. Here, studies a model system are presented, consisting ZnO microrod coated by thin layer gold, which forms Schottky contact with piezoelectric material. Coherent X‐ray diffraction imaging (CXDI) transmission electron microscopy (TEM) used...
The microscopic structure of Fe‐based metallic glasses (FeGaB) and (FeCoSiB) is investigated during in situ thermal annealing using extended X‐ray absorption fine spectroscopy (EXAFS) above the Fe–K Co–K edges. FeGaB exhibits a phase transition 450 °C, changing from amorphous glass to partially crystalline structure. Its medium‐range after this modeled α‐Fe reference structures, combined with nearest‐neighbor (NN) contributions . Local order described same model, restricted NN interactions....
The fast and contact‐free detection of biomagnetic vital signs can benefit clinical diagnostics in medical care, emergency services, scientific studies, hugely. A highly sensitive magnetoelectric sensor for the signals combined with piezotronic effect is a promising path to increase signal limit. Herein, results three ZnO microrods examined by nano X‐ray diffraction current–voltage curves investigate crystalline structure influence on Schottky contact properties are presented. measurements...
Three hexagonal ZnO rods, partly coated with gold or silver (Schottky contact) and aluminum (ohmic), are examined by current/voltage curves scanning nano X-ray diffraction. This combination revealed a striking impact of the crystalline quality on Schottky contact properties. Further details can be found in article number 2100201 Bridget M. Murphy co-workers.