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E u r o S c i C o n C o n f e r e n c e o n
Chemistry
2018
Chemistry 2018
Journal of Organic & Inorganic Chemistry
ISSN 2472-1123
F e b r u a r y 1 9 - 2 0 , 2 0 1 8
P a r i s , F r a n c e
Page 26
W
e apply X-ray standing wave technique on multiple spectroscopic
methods to characterize the structure of the periodic multilayers which
are designed as reflecting mirrors for radiations of certain wavelengths. In this
work, we have performed X-ray fluorescence spectroscopy (XRF), hard X-ray
photoelectron spectroscopy (HAXPES) and particle induced X-ray emission
(PIXE) in order to generate the X-ray standing waves (or Kossel diffraction
in the case that the standing waves are due to the interference of the X-ray
emission) within the nano scale periodic multilayers or so-called superlattices.
The effect of the standing wave can be studied by observing the variation of the
spectroscopic intensities as a function of the angle between the surface of the
multilayer and the incident radiation/particle beam. Such angular dependence
of the spectra provides a depth profile of both elemental and chemical
information of the multilayers. The experimental results are compared with
theoretical calculations. A fine fit of them indicates a great potential of these
characterization methods, of which the PIXE-Kossel method is originally
designed by our research group.
Biography
Meiyi Wu has obtained his bachelor degrees in physics and
applications in 2012 from both Wuhan University and Univer-
sité Claude Bernard Lyon 1. He obtained his master degree in
sciences of materials and nano-objects in 2015 fromUniversité
Pierre et Marie Curie (Sorbonne Université today). He has been
studying as PhD student in Laboratoire de Chimie Physique -
Matière et Rayonnement of Sorbonne Université since 2015
and is expecting to obtain his PhD in 2018. During two years,
he has published 4 papers in journals and 4 conference papers.
He has contributed in multiple international conferences with
posters and oral presentations, including an invited talk.
meiyi.wu@upmc.frX-ray standing wave technique applied in the characterization
of periodic multilayers
Meiyi Wu
1,2
, Karine Le Guen
1,2
, Jean-Michel André
1,2
and-
Philippe Jonnard
1,2
1
Sorbonne Université, Faculté des Sciences et Ingénierie, Laboratoire de Chimie Physique -
Matière et Rayonnement, 4 place Jussieu, boîte courier 1140, F-75252 Paris cedex 05, France
2
CNRS UMR 7614, Laboratoire de Chimie Physique - Matière et Rayonnement, 4 place Jus-
sieu, boîte courier 1140, F-75252 Paris cedex 05, France
Meiyi Wu, J Org Inorg Chem 2018, Volume: 4
DOI: 10.21767/2472-1123-C1-002