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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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De Backer, Annick
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Publications (5/5 displayed)
- 2024Investigation of the octahedral network structure in formamidinium lead bromide nanocrystals by low-dose scanning transmission electron microscopycitations
- 2023Fast generation of calculated ADF-EDX scattering cross-sections under channelling conditionscitations
- 2022Element specific atom counting at the atomic scale by combining high angle annular dark field scanning transmission electron microscopy and energy dispersive X-ray spectroscopycitations
- 2021Interface Pattern Engineering in Core-Shell Upconverting Nanocrystals: Shedding Light on Critical Parameters and Consequences for the Photoluminescence Properties
- 2012Exit wave reconstruction from focal series of HRTEM images, single crystal XRD and total energy studies on Sb xWO 3+y (x ~ 0.11)citations
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article
Element specific atom counting at the atomic scale by combining high angle annular dark field scanning transmission electron microscopy and energy dispersive X-ray spectroscopy
Abstract
A new methodology is presented to count the number of atoms in multimetallic nanocrystals by combining energy dispersive X-ray spectroscopy (EDX) and high angle annular dark field scanning transmission electron microscopy (HAADF STEM). For this purpose, the existence of a linear relationship between the incoherent HAADF STEM and EDX images is exploited. Next to the number of atoms for each element in the atomic columns, the method also allows quantification of the error in the obtained number of atoms, which is of importance given the noisy nature of the acquired EDX signals. Using experimental images of an Au@Ag core-shell nanorod, it is demonstrated that 3D structural information can be extracted at the atomic scale. Furthermore, simulated data of an Au@Pt core-shell nanorod show the prospect to characterize heterogeneous nanostructures with adjacent atomic numbers.