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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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Jannis, Daen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024The effect of microstructure and film composition on the mechanical properties of linear antenna CVD diamond thin filmscitations
- 2024Photoluminescence of Germanium-Vacancy Centers in Nanocrystalline Diamond Films: Implications for Quantum Sensing Applicationscitations
- 2024Imaging the suppression of ferromagnetism in LaMnO3 by metallic overlayerscitations
- 2024Photoluminescence of Germanium-Vacancy Centers in Nanocrystalline Diamond Films:Implications for Quantum Sensing Applicationscitations
- 2023Low-Dose 4D-STEM Tomography for Beam-Sensitive Nanocompositescitations
- 2023Deep learning for automated materials characterisation in core-loss electron energy loss spectroscopycitations
- 2023Epitaxial growth of the candidate ferroelectric Rashba material SrBiO<sub>3</sub> by pulsed laser deposition
- 2021Optical versus electron diffraction imaging of Twist-angle in 2D transition metal dichalcogenide bilayerscitations
- 2019Spectroscopic coincidence experiments in transmission electron microscopycitations
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article
Low-Dose 4D-STEM Tomography for Beam-Sensitive Nanocomposites
Abstract
Electron tomography is essential for investigating the three-dimensional (3D) structure of nanomaterials. However, many of these materials, such as metal-organic frameworks (MOFs), are extremely sensitive to electron radiation, making it difficult to acquire a series of projection images for electron tomography without inducing electron-beam damage. Another significant challenge is the high contrast in high-angle annular dark field scanning transmission electron microscopy that can be expected for nanocomposites composed of a metal nanoparticle and an MOF. This strong contrast leads to so-called metal artifacts in the 3D reconstruction. To overcome these limitations, we here present low-dose electron tomography based on four-dimensional scanning transmission electron microscopy (4D-STEM) data sets, collected using an ultrafast and highly sensitive direct electron detector. As a proof of concept, we demonstrate the applicability of the method for an Au nanostar embedded in a ZIF-8 MOF, which is of great interest for applications in various fields, including drug delivery.