An alternative approach for ζ-factor measurement using pure element nanoparticles

TitleAn alternative approach for ζ-factor measurement using pure element nanoparticles
Publication TypeJournal Article
Year of Publication2016
AuthorsD. Zanaga, T. Altantzis, J. Sanctorum, B. Freitag, and S. Bals
JournalUltramicroscopy
Volume164
Pagination11–16
ISSN03043991
KeywordsBimetallic nanoparticles, EDXS quantification, Electron tomography
Abstract

It is very challenging to measure the chemical composition of hetero nanostructures in a reliable and quantitative manner. Here, we propose a novel and straightforward approach that can be used to quantify energy dispersive X-ray spectra acquired in a transmission electron microscope. Our method is based on a combination of electron tomography and the so-called ζ-factor technique. We will demonstrate the reliability of our approach as well as its applicability by investigating Au-Ag and Au-Pt hetero nanostructures. Given its simplicity, we expect that the method could become a new standard in the field of chemical characterization using electron microscopy.

URLhttp://linkinghub.elsevier.com/retrieve/pii/S0304399116300134
DOI10.1016/j.ultramic.2016.03.002