Title :

Multicomponent Signal Unmixing from Nanoheterostructures: Overcoming the Traditional Challenges of Nanoscale X-ray Analysis via Machine Learning

Author(s) :

Rossouw, David [Auteur]
University of Cambridge [UK] [CAM]
Burdet, Pierre [Auteur]
University of Cambridge [UK] [CAM]
de la Peña, Francisco [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Ducati, Caterina [Auteur]
University of Cambridge [UK] [CAM]
Knappett, Benjamin R. [Auteur]
University of Cambridge [UK] [CAM]
Wheatley, Andrew E. H. [Auteur]
University of Cambridge [UK] [CAM]
Midgley, Paul A. [Auteur]
University of Cambridge [UK] [CAM]

Journal title :

Nano Letters

Abbreviated title :

Nano Lett.

Volume number :

15

Pages :

2716-2720

Publisher :

American Chemical Society (ACS)

Publication date :

2015-03-17

ISSN :

1530-6984

English keyword(s) :

ICA
EDX
TEM
electron microscopy
nanoparticle

HAL domain(s) :

Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Physique [physics]/Géophysique [physics.geo-ph]
Physique [physics]/Astrophysique [astro-ph]
Planète et Univers [physics]/Astrophysique [astro-ph]
Planète et Univers [physics]/Sciences de la Terre

English abstract : [en]

The chemical composition of core–shell nanoparticle clusters have been determined through principal component analysis (PCA) and independent component analysis (ICA) of an energy-dispersive X-ray (EDX) spectrum image (SI) ...
Show more >The chemical composition of core–shell nanoparticle clusters have been determined through principal component analysis (PCA) and independent component analysis (ICA) of an energy-dispersive X-ray (EDX) spectrum image (SI) acquired in a scanning transmission electron microscope (STEM). The method blindly decomposes the SI into three components, which are found to accurately represent the isolated and unmixed X-ray signals originating from the supporting carbon film, the shell, and the bimetallic core. The composition of the latter is verified by and is in excellent agreement with the separate quantification of bare bimetallic seed nanoparticles.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Matériaux Terrestres et Planétaires

Submission date :

2024-02-01T14:09:47Z
2024-02-02T13:14:18Z