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

作者：Zanaga Daniele; Altantzis Thomas; Sanctorum Jonathan; Freitag Bert; Bals Sara^*

来源：Ultramicroscopy, 2016, 164: 11-16.

DOI：10.1016/1j.ultramic.2016.03.002

• Electron tomography
• Bimetallic nanoparticles
• EDXS quantification

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 zeta-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.

• 出版日期2016-5