| People | Locations | Statistics |
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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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Ten Brink, Gert H.
University of Groningen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (32/32 displayed)
- 2024Bridging the gap between high-entropy alloys and metallic glasses:Control over disorder and mechanical properties of coatings
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysics.
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2022Nanostructure and thermal power of highly-textured and single-crystal-like Bi2Te3 thin filmscitations
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysics
- 2022Taking a closer look - how the microstructure of Dion-Jacobson perovskites governs their photophysicscitations
- 2021Tunable wettability of polymer films by partial engulfment of nanoparticlescitations
- 2021Tunable wettability of polymer films by partial engulfment of nanoparticlescitations
- 2020Microstructure, precipitate and property evolution in cold-rolled Ti-V high strength low alloy steelcitations
- 2020Microstructure, precipitate and property evolution in cold-rolled Ti-V high strength low alloy steelcitations
- 2020Microstructure, precipitate and property evolution in cold-rolled Ti-V high strength low alloy steelcitations
- 2020Unraveling the Microstructure of Layered Metal Halide Perovskite Filmscitations
- 2020Unraveling the Microstructure of Layered Metal Halide Perovskite Filmscitations
- 2020Stable cesium formamidinium lead halide perovskites: a comparison of photophysics and phase purity in thin films and single crystalscitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskitescitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Mechanism of surface passivation of methylammonium lead tribromide single crystals by benzylaminecitations
- 2019Enhancing the crystallinity and perfecting the orientation of formamidinium tin iodide for highly efficient Sn-based perovskite solar cellscitations
- 2019The Impact of Stoichiometry on the Photophysical Properties of Ruddlesden-Popper Perovskitescitations
- 2019Stable Cesium Formamidinium Lead Halide Perovskites:A Comparison of Photophysics and Phase Purity in Thin Films and Single Crystalscitations
- 2019Investigation of the Nanoscale Morphology in Industrially Relevant Clearcoats of Waterborne Polymer Colloids by Means of Variable-Angle-Grazing Incidence Small-Angle X-ray Scatteringcitations
- 2018Micropatterned 2D Hybrid Perovskite Thin Films with Enhanced Photoluminescence Lifetimescitations
- 2018Combining Ultrafast Calorimetry and Electron Microscopycitations
- 2018Combining Ultrafast Calorimetry and Electron Microscopy:Reversible Phase Transformations in SeTeAs Alloyscitations
- 2018Shape and structural motifs control of MgTi bimetallic nanoparticles using hydrogen and methane as trace impuritiescitations
- 2017N-Type Organic Thermoelectricscitations
- 2016N-type polymers as electron extraction layers in hybrid perovskite solar cells with improved ambient stabilitycitations
- 2014Synthesis and exceptional thermal stability of Mg-based bimetallic nanoparticles during hydrogenationcitations
- 2013Tuning structural motifs and alloying of bulk immiscible Mo-Cu bimetallic nanoparticles by gas-phase synthesiscitations
- 2010Microstructural features of intergranular brittle fracture and cold cracking in high strength aluminum alloyscitations
- 2006The growth-induced microstructural origin of the optical black state of Mg2NiHx thin filmscitations
- 2006Optical, structural, and electrical properties of Mg2NiH4 thin films in situ grown by activated reactive evaporationcitations
Places of action
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article
The growth-induced microstructural origin of the optical black state of Mg2NiHx thin films
Abstract
Hydrogen absorption by a thin Mg2Ni film capped with Pd results in the nucleation of the Mg2NiH4 phase at the film/substrate interface. On further hydrogenation, a self-organized two-layer system consisting of a Mg2NiH0.3/Mg2NiH4 bottom-layer and a Mg2NiH0.3 top-layer is formed. This leads to an intermediate optical black state in Mg2Ni thin films, which transforms from metallic/reflective to semiconducting/transparent upon hydrogenation. This hydrogen absorption behavior is completely unexpected, since the hydrogen enters the film through the Pd-capped film surface. To explain the preferential nucleation of Mg2NiH4 at the substrate/film interface, we determine the chemical homogeneity of these thin films by RBS and SIMS. Furthermore by STM, TEM and SEM, we analyze the microstructure. We find that up to a film thickness of 50 nm, the film consists of small grains and clusters of small grains. On further growth, a columnar structure develops. We propose that the nucleation barrier for the formation of the Mg2NiH4 phase is smaller for the small loosely packed grains at the interface, while the columnar grain boundaries promote the hydrogen diffusion to the substrate. (c) 2005 Elsevier B.V. All rights reserved.