Maik Butterling
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View article: Positron quantum probe diagnosis at the cathode/graphite interface in a Co-free Ni-based cathode to optimize Li-ion mobility
Positron quantum probe diagnosis at the cathode/graphite interface in a Co-free Ni-based cathode to optimize Li-ion mobility Open
View article: Asymmetrical Defect Sink Behaviour of HCP/BCC Zr/Nb Multilayer Interfaces: Bubble-Denuded Zones at Nb Layers
Asymmetrical Defect Sink Behaviour of HCP/BCC Zr/Nb Multilayer Interfaces: Bubble-Denuded Zones at Nb Layers Open
Radiation induced helium bubble formation poses a major challenge to the structural integrity of materials in nuclear energy systems. In this study, we investigate defect evolution and He behavior in ZrNb nanoscale metallic multilayers wit…
View article: Clusters of vacancies in gallium nitride grown by MOCVD
Clusters of vacancies in gallium nitride grown by MOCVD Open
We investigate the formation and characteristics of vacancy clusters (VCs) in gallium nitride (GaN) grown by metal–organic chemical vapor deposition. The research identifies vacancy-type defects, particularly V Ga –H i complexes, using pos…
View article: Point Defects in MoNbTi-Based Refractory Multi-Principal-Element Alloys
Point Defects in MoNbTi-Based Refractory Multi-Principal-Element Alloys Open
As emergent material candidates for extreme environments, refractory high-entropy alloys (HEAs) or refractory multi-principal-element alloys (RMPEAs) comprising refractory metals feature qualities such as high radiation tolerance, corrosio…
View article: Defect Studies in Thin-Film SiO2 of a Metal-Oxide-Silicon Capacitor Using Drift-Assisted Positron Annihilation Lifetime Spectroscopy
Defect Studies in Thin-Film SiO2 of a Metal-Oxide-Silicon Capacitor Using Drift-Assisted Positron Annihilation Lifetime Spectroscopy Open
This work investigates the impact of an internal electric field on the annihilation characteristics of positrons implanted in a 180(10)nm SiO2 layer of a Metal-Oxide-Silicon (MOS) capacitor, using Positron Annihilation Lifetime Spectroscop…
View article: Enhanced Electromagnetic Wave Absorption in Mapbi<sub>3</sub> Hybrid Perovskite Through a Defect‐Tunable Green Synthesis
Enhanced Electromagnetic Wave Absorption in Mapbi<sub>3</sub> Hybrid Perovskite Through a Defect‐Tunable Green Synthesis Open
Defect engineering and structure‐property relationship understanding in methylammonium lead iodide (MAPI) hybrid perovskites (HPs) attract significant scientific interest, as synthesis‐related defects may strongly influence intrinsic prope…
View article: Voids and nanopores in nanocolumnar platinum thin films grown by magnetron sputtering and evaporation at oblique angles: A comparative analysis
Voids and nanopores in nanocolumnar platinum thin films grown by magnetron sputtering and evaporation at oblique angles: A comparative analysis Open
View article: Defect analysis of the $β$- to $γ$-Ga$_{2}$O$_{3}$ phase transition
Defect analysis of the $β$- to $γ$-Ga$_{2}$O$_{3}$ phase transition Open
In this study, we investigate the ion-irradiation-induced phase transition in gallium oxide (Ga2O3) from the $β$ to the $γ$ phase, the role of defects during the transformation, and the quality of the resulting crystal structure. Using a m…
View article: Boron/hydrocarbon plasma polymer nanofuels for green energy generation via laser-driven proton-boron fusion
Boron/hydrocarbon plasma polymer nanofuels for green energy generation via laser-driven proton-boron fusion Open
Since 2005, materials rich with hydrogen and boron have been investigated as fuels for laser-driven proton-boron (pB) fusion, which is envisioned as a neutronless alternative to classical fusion for green energy generation. However, laser …
View article: Positronium Formation on the Rhenium Surface Studied by Slow Positron Measurements
Positronium Formation on the Rhenium Surface Studied by Slow Positron Measurements Open
The article reports measurement results performed using slow positron beam techniques in pure well‐annealed rhenium samples at a depth of less than 0.5 μm from the entrance surface. The Doppler broadening of the annihilation line and posit…
View article: Positrons as microprobes to study water-dependent free volume of wood cell walls: a preliminary study
Positrons as microprobes to study water-dependent free volume of wood cell walls: a preliminary study Open
Positron annihilation lifetime spectroscopy (PALS) was employed to study the water-dependent free volume characteristics of wood cell walls in earlywood and latewood of loblolly pine ( Pinus taeda ). Measurements were conducted across rela…
View article: Boron/Hydrocarbon Plasma Polymer Nanofuels for Green Energy Generation Via Laser-Driven Proton-Boron Fusion
Boron/Hydrocarbon Plasma Polymer Nanofuels for Green Energy Generation Via Laser-Driven Proton-Boron Fusion Open
View article: Positron Quantum Probe Diagnosis at the Cathode/Graphite Interface in a Co-Free Ni-Based Cathode to Optimize Li-Ion Mobility
Positron Quantum Probe Diagnosis at the Cathode/Graphite Interface in a Co-Free Ni-Based Cathode to Optimize Li-Ion Mobility Open
View article: Sub-nanometer scale porosity emerging from SiOx plasma polymer films: characterization by positron annihilation spectroscopy
Sub-nanometer scale porosity emerging from SiOx plasma polymer films: characterization by positron annihilation spectroscopy Open
View article: Probing structural and optical modulations in metal-ion co-doped gadolinium vanadate: a combined spectroscopic and diffraction study
Probing structural and optical modulations in metal-ion co-doped gadolinium vanadate: a combined spectroscopic and diffraction study Open
Upconversion in GdVO 4 :Yb 3+ /Er 3+ was tuned by co-doping with Sc 3+ , Cd 2+ , and Zn 2+ . Enhanced PLQY was achieved through Zn 2+ -induced suppression of large vacancy clusters, while Cd 2+ introduced extended defects that quenched lum…
View article: Black gold layers: preparation <i>via</i> thermal evaporation, material and optical properties, and application potential for gas sensors
Black gold layers: preparation <i>via</i> thermal evaporation, material and optical properties, and application potential for gas sensors Open
The gas sensing mechanism of the sensor equipped with a black gold active layer. Surface adsorption of the gaseous analyte causes a shift in the sensor's electrical resistance.
View article: The Impact of Densification Steps on Epoxide-Based Tfc Membranes
The Impact of Densification Steps on Epoxide-Based Tfc Membranes Open
View article: Enhancing anti-adhesion properties by designing microstructure - the microscopy and spectroscopy study of the intercellular bacterial response
Enhancing anti-adhesion properties by designing microstructure - the microscopy and spectroscopy study of the intercellular bacterial response Open
View article: Ge epitaxy at ultra-low growth temperatures enabled by a pristine growth environment
Ge epitaxy at ultra-low growth temperatures enabled by a pristine growth environment Open
Germanium (Ge), the next-in-line group-IV material, bears great potential to add functionality and performance to next-generation nanoelectronics and solid-state quantum transport based on silicon (Si) technology. Here, we investigate the …
View article: Defectivity of Al:ZnO thin films with different crystalline order probed by Positron Annihilation Spectroscopy
Defectivity of Al:ZnO thin films with different crystalline order probed by Positron Annihilation Spectroscopy Open
Three Positron Annihilation Spectroscopy (PAS) techniques have been employed to investigate the point defects of Al-doped Zinc Oxide (AZO) thin films grown by Radio Frequency (RF) magnetron sputtering with different substrates and depositi…
View article: Spatially-resolved charge detectors for particle beam optimization with femtoampere resolution achieved by in-vacuum signal preamplification
Spatially-resolved charge detectors for particle beam optimization with femtoampere resolution achieved by in-vacuum signal preamplification Open
We present the design of a Faraday cup-like charged particle detector in a four quadrant configuration aimed at facilitating the alignment of low-intensity beams of exotic particles. The device is capable of assessing the current on the el…
View article: Spatially Resolved Charge Detectors for Particle Beam Optimization With Femtoampere Resolution Achieved by In-Vacuum Signal Preamplification
Spatially Resolved Charge Detectors for Particle Beam Optimization With Femtoampere Resolution Achieved by In-Vacuum Signal Preamplification Open
View article: Insights into the LiMn2O4 Cathode Stability in Aqueous Electrolyte
Insights into the LiMn2O4 Cathode Stability in Aqueous Electrolyte Open
LiMn2O4 (LMO), cathodes present large stability when cycled in aqueous electrolytes, contrasting its behavior in conventional organic electrolytes in Lithium-ion batteries (LIBs). To elucidate the mechanisms underlying this distinctive beh…
View article: Effect of annealing temperature on the structure and optical properties of ZnO thin films
Effect of annealing temperature on the structure and optical properties of ZnO thin films Open
The effect of annealing temperature on the microstructure, defects and optical properties of ZnO thin films are investigated using sol–gel based spin coating method for a range of annealing temperatures from 200 ∘ C to 500 ∘ C. The correla…
View article: Evolution of point defects in pulsed-laser-melted Ge<sub>1-x </sub>Sn <sub>x</sub> probed by positron annihilation lifetime spectroscopy
Evolution of point defects in pulsed-laser-melted Ge<sub>1-x </sub>Sn <sub>x</sub> probed by positron annihilation lifetime spectroscopy Open
Direct-band-gap Germanium-Tin alloys (Ge 1- x Sn x ) with high carrier mobilities are promising materials for nano- and optoelectronics. The concentration of open volume defects in the alloy, such as Sn and Ge vacancies, influences the fin…
View article: Optimizing magneto-ionic performance in structure/composition-engineered ternary nitrides
Optimizing magneto-ionic performance in structure/composition-engineered ternary nitrides Open
View article: Recovery of radiation induced defects via nanovoids in bulk pure Fe
Recovery of radiation induced defects via nanovoids in bulk pure Fe Open
Enhancing radiation tolerance in materials is at the forefront of materials science. Grain and/or phase boundaries in nanocomposite, nanophase, and nanofoam materials have been shown to provide a promising route to enhancing radiation tole…
View article: Radiation damage evolution in High Entropy Alloys (HEAs) caused by 3–5 MeV Au and 5 MeV Cu ions in a broad range of dpa in connection to mechanical properties and internal morphology
Radiation damage evolution in High Entropy Alloys (HEAs) caused by 3–5 MeV Au and 5 MeV Cu ions in a broad range of dpa in connection to mechanical properties and internal morphology Open
High Entropy Alloys (HEAs) are prospective materials for nuclear fusion reactors and were irradiated in this study at a broad range of energetic ion fluences. Different ion masses (Cu and Au ions) and energies (3 and 5 MeV) were selected t…
View article: In Situ Heating Positron Annihilation Lifetime Spectroscopy Experiments on an Al–Mg Alloy
In Situ Heating Positron Annihilation Lifetime Spectroscopy Experiments on an Al–Mg Alloy Open
The binding between vacancies and Mg atoms in an aluminum solid solution is not fully understood but essential for understanding its role in age hardening of many Al alloys. After annealing and quenching, Mg prevents the loss of excess vac…
View article: Vacancy complexes in Cd3As2
Vacancy complexes in Cd3As2 Open
Epitaxial growth of the three-dimensional topological semimetal Cd3As2 on semiconductor substrates enables its use and integration in device applications. Epitaxy also provides an avenue for varying and controlling point defects through mo…