| 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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Ek, Martin
Lund University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Tribology and airborne particle emissions from grey cast iron and WC reinforced laser cladded brake discscitations
- 2023Impact of electron beam irradiation on Carbon Black Oxidation
- 2023High-Temperature Oxidation of Titanium Aluminium Nitride Coatings Visualized by Environmental Transmission Electron Microscopy
- 2022Synthesis, characterization, and challenges faced during the preparation of zirconium pillared clayscitations
- 2021Characterisation of worn WC tool using STEM-EDS aided by principal component analysiscitations
- 2021Synthesis and characterization of Au@Zn core@shell aerosol nanoparticles generated by spark ablation and on-line PVD
- 2020Complex Aerosol Nanostructures: Revealing the Phases from Multivariate Analysis on Elemental Maps Obtained by TEM-EDX
- 2018Self-assembled InN quantum dots on side facets of GaN nanowirescitations
- 2014GaAs/AlGaAs heterostructure nanowires studied by cathodoluminescencecitations
- 2013Analysis of Structure, Composition and Growth of Semiconductor Nanowires by Transmission Electron Microscopy
- 2013Combining axial and radial nanowire heterostructures: Radial Esaki diodes and tunnel field-effect transistorscitations
- 2012Combinatorial Approaches to Understanding Polytypism in III-V Nanowires.citations
- 2011Formation of the axial heterojunction in GaSb/InAs(Sb) nanowires with high crystal qualitycitations
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document
Complex Aerosol Nanostructures: Revealing the Phases from Multivariate Analysis on Elemental Maps Obtained by TEM-EDX
Abstract
Transmission electron microscopy (TEM) is a popular off-line technique to study aerosol nanoparticles. Coupled with an X-ray detector, high-resolution elemental maps of the sample can be obtained by scanning the focused electron beam and collecting the emitted X-ray spectra, called energy dispersive X-ray spectroscopy (EDX). Interpretation of the acquired data can be difficult in the case of complex particles having regions of different and overlapping phases because the elemental distributions do not reveal phase information. However, the resulting large datacubes collected are well-suited for multivariate statistics techniques to reveal information clouded by the noise of raw spectra. In this work, we show the comparison between two multivariate techniques, hierarchical clustering and non-negative matrix factorization, to separate elemental maps into phase maps of Cu@Ag core@shell aerosol nanoparticles and aerotaxy nanowires. We compare the results of the Cu@Ag sample to X-ray photoelectric spectroscopy measurements as an independent measure of surface composition.