Advanced

The geometric structure of pure SF6 and mixed Ar/SF6 clusters investigated by core level photoelectron spectroscopy

Lindblad, A.; Winkler, M.; Tchaplyguine, Maxim LU ; Öhrwall, Gunnar LU ; Svensson, S. and Bjorneholm, O. (2009) In Surface Science 603(3). p.433-436
Abstract
The S 2p core level photoelectron spectra of Sulphurhexafluoride Clusters have been investigated together with heterogeneous Ar/SF6 clusters, created by doping Ar host clusters (with a mean size of 3600 atoms) with the molecule. Surface and bulk features are resolved both in the argon 2p and the sulphur 2p core level photoelectron spectra. For the latter level such features were only observed in the pure cluster case; a single feature characterizes the S 2p core level spectra of SF6 doped argon clusters. From the chemical shifts, investigated with respect to SF6 doping pressure. It can be concluded that the host clusters get smaller with increasing doping pressures and that the SF6 molecules predominantly stay below the cluster surface,... (More)
The S 2p core level photoelectron spectra of Sulphurhexafluoride Clusters have been investigated together with heterogeneous Ar/SF6 clusters, created by doping Ar host clusters (with a mean size of 3600 atoms) with the molecule. Surface and bulk features are resolved both in the argon 2p and the sulphur 2p core level photoelectron spectra. For the latter level such features were only observed in the pure cluster case; a single feature characterizes the S 2p core level spectra of SF6 doped argon clusters. From the chemical shifts, investigated with respect to SF6 doping pressure. It can be concluded that the host clusters get smaller with increasing doping pressures and that the SF6 molecules predominantly stay below the cluster surface, whereas the Argon core stays intact. We have neither observed features corresponding to SF6 on the cluster Surface, nor features corresponding to molecules deep inside the bulk in any of the spectra from the pick-up experiments. (C) 2008 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Homogeneous, Heterogeneous, Sulphurhexaflouride, X-ray photoelectron spectroscopy, Argon, Clusters
in
Surface Science
volume
603
issue
3
pages
433 - 436
publisher
Elsevier
external identifiers
  • wos:000263736400004
  • scopus:58749106047
ISSN
0039-6028
DOI
10.1016/j.susc.2008.11.032
language
English
LU publication?
yes
id
fdae142b-71e1-4cb8-9aa7-d0c835e45e53 (old id 1370866)
date added to LUP
2009-05-08 17:09:43
date last changed
2017-01-01 06:10:54
@article{fdae142b-71e1-4cb8-9aa7-d0c835e45e53,
  abstract     = {The S 2p core level photoelectron spectra of Sulphurhexafluoride Clusters have been investigated together with heterogeneous Ar/SF6 clusters, created by doping Ar host clusters (with a mean size of 3600 atoms) with the molecule. Surface and bulk features are resolved both in the argon 2p and the sulphur 2p core level photoelectron spectra. For the latter level such features were only observed in the pure cluster case; a single feature characterizes the S 2p core level spectra of SF6 doped argon clusters. From the chemical shifts, investigated with respect to SF6 doping pressure. It can be concluded that the host clusters get smaller with increasing doping pressures and that the SF6 molecules predominantly stay below the cluster surface, whereas the Argon core stays intact. We have neither observed features corresponding to SF6 on the cluster Surface, nor features corresponding to molecules deep inside the bulk in any of the spectra from the pick-up experiments. (C) 2008 Elsevier B.V. All rights reserved.},
  author       = {Lindblad, A. and Winkler, M. and Tchaplyguine, Maxim and Öhrwall, Gunnar and Svensson, S. and Bjorneholm, O.},
  issn         = {0039-6028},
  keyword      = {Homogeneous,Heterogeneous,Sulphurhexaflouride,X-ray photoelectron spectroscopy,Argon,Clusters},
  language     = {eng},
  number       = {3},
  pages        = {433--436},
  publisher    = {Elsevier},
  series       = {Surface Science},
  title        = {The geometric structure of pure SF6 and mixed Ar/SF6 clusters investigated by core level photoelectron spectroscopy},
  url          = {http://dx.doi.org/10.1016/j.susc.2008.11.032},
  volume       = {603},
  year         = {2009},
}