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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bertram, Florian
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2024Millisecond X-ray reflectometry and neural network analysis: unveiling fast processes in spin coatingcitations
- 2024Halide Segregated Crystallization of Mixed-Halide Perovskites Revealed by In Situ GIWAXScitations
- 2023Elucidating Structure Formation in Highly Oriented Triple Cation Perovskite Filmscitations
- 2023Real-Time Monitoring of Strain Accumulation and Relief during Epitaxy of Ultrathin Co Ferrite Films with Varied Co Content
- 2023Reversible Ultrathin PtO$_x$ Formation at the Buried Pt/YSZ(111) Interface Studied In Situ under Electrochemical Polarizationcitations
- 2023Temperature dependent interaction of hydrogen with PdAg nanocomposite thin films revealed by in-situ synchrotron XRDcitations
- 2022In-situ investigation on hydrogenation-dehydrogenation of Pd–Ag alloy filmscitations
- 2022Effect of the valence state on the band magnetocrystalline anisotropy in two-dimensional rare-earth/noble-metal compoundscitations
- 2022Real-Time Monitoring the Growth of Epitaxial CoxFe3−xO4 Ultrathin Films on Nb-Doped SrTiO3(001) via Reactive Molecular Beam Epitaxy by Means of Operando HAXPES
- 2022Time-resolved x-ray diffraction and photoelectron spectroscopy investigation of the reactive molecular beam epitaxy of Fe$_3$O$_4$ ultrathin filmscitations
- 2021Quantitative comparison of the magnetic proximity effect in Pt detected by XRMR and XMCDcitations
- 2021Quantitative comparison of the magnetic proximity effect in Pt detected by XRMR and XMCDcitations
- 2021Quantitative comparison of the magnetic proximity effect in Pt detected by XRMR and XMCDcitations
- 2021Devitrification of thin film Cu–Zr metallic glass via ultrashort pulsed laser annealingcitations
- 2021Cationic Ordering and Its Influence on the Magnetic Properties of Co-Rich Cobalt Ferrite Thin Films Prepared by Reactive Solid Phase Epitaxy on Nb-Doped SrTiO3(001)citations
- 2020Structure of two-dimensional Fe3O4citations
- 2020Structure of two-dimensional $Fe_{3}O_{4}$citations
- 2020Crystal-structure of active layers of small molecule organic photovoltaics before and after solvent vapor annealingcitations
- 2020Beam damage of single semiconductor nanowires during X-ray nano beam diffraction experimentscitations
- 2020Interface between Water–Solvent Mixtures and a Hydrophobic Surfacecitations
- 2019Current Mapping of Lead Phthalocyanine Thin Films in the Presence of Gaseous Dopantscitations
- 2019Potential-Induced Pitting Corrosion of an $mathrm{IrO_{2}(110)-RuO_{2}(110)/Ru(0001)}$ Model Electrode under Oxygen Evolution Reaction Conditionscitations
- 2019Surface oxide development on aluminum alloy 6063 during heat treatmentcitations
- 2019Potential-Induced Pitting Corrosion of an IrO2(110)-RuO2(110)/Ru(0001) Model Electrode under Oxygen Evolution Reaction Conditionscitations
- 2017Confining metal-halide perovskites in nanoporous thin filmscitations
- 2017Confining metal-halide perovskites in nanoporous thin filmscitations
- 2017Integration of electrochemical and synchrotron-based X-ray techniques for in-situ investigation of aluminum anodizationcitations
- 2017Anodization of Al(100), Al(111) and Al Alloy 6063 studied in situ with X-ray reflectivity and electrochemical impedance spectroscopycitations
- 2015Magnetic anisotropy related to strain and thickness of ultrathin iron oxide films on MgO(001)citations
- 2015Modifying magnetic properties of ultra-thin magnetite films by growth on Fe pre-covered MgO(001)citations
- 2015X-ray photoemission analysis of clean and carbon monoxide-chemisorbed platinum(111) stepped surfaces using a curved crystal.citations
- 2014Ultrathin, epitaxial cerium dioxide on siliconcitations
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document
Beam damage of single semiconductor nanowires during X-ray nano beam diffraction experiments
Abstract
Nanoprobe X-ray diffraction (nXRD) using focused synchrotron radiation is a powerful technique to study the structural properties of individual semiconductor nanowires. However, when performing the experiment under ambient conditions, the required high X-ray dose and prolonged exposure times can lead to radiation damage. To unveil the origin of radiation damage, we compare nXRD experiments carried out on individual semiconductor nanowires in their as grown geometry both under ambient conditions and under He atmosphere at the microfocus station of the P08 beamline at the 3rd generation source PETRA III. Using an incident X-ray beam energy of 9 keV and photon flux of 10$^{10}$s$^{-1}$, the axial lattice parameter and tilt of individual GaAs/In$_{0.2}$Ga$_{0.8}$As/GaAs core-shell nanowires were monitored by continuously recording reciprocal space maps of the 111 Bragg reflection at a fixed spatial position over several hours. In addition, the emission properties of the (In,Ga)As quantum well, the atomic composition of the exposed nanowires and the nanowire morphology are studied by cathodoluminescence spectroscopy, energy dispersive X-ray spectroscopy and scanning electron microscopy, respectively, both prior to and after nXRD exposure. Nanowires exposed under ambient conditions show severe optical and morphological damage, which was reduced for nanowires exposed under He atmosphere. The observed damage can be largely attributed to an oxidation process from X-ray induced ozone reactions in air. Due to the lower heat transfer coefficient compared to GaAs, this oxide shell limits the heat transfer through the nanowire side facets, which is considered as the main channel of heat dissipation for nanowires in the as-grown geometry....