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Title: A versatile photoelectron spectrometer for pressures up to 30 mbar

High-pressure photoelectron spectroscopy is a rapidly developing technique with applications in a wide range of fields ranging from fundamental surface science and catalysis to energy materials, environmental science, and biology. At present the majority of the high-pressure photoelectron spectrometers are situated at synchrotron end stations, but recently a small number of laboratory-based setups have also emerged. In this paper we discuss the design and performance of a new laboratory based high pressure photoelectron spectrometer equipped with an Al Kα X-ray anode and a hemispherical electron energy analyzer combined with a differentially pumped electrostatic lens. The instrument is demonstrated to be capable of measuring core level spectra at pressures up to 30 mbar. Moreover, valence band spectra of a silver sample as well as a carbon-coated surface (graphene) recorded under a 2 mbar nitrogen atmosphere are presented, demonstrating the versatility of this laboratory-based spectrometer.
Authors:
; ;  [1] ; ; ;  [2] ; ; ;  [3] ; ;  [4] ;  [5] ; ; ; ;  [6]
  1. Department of Chemistry-Ångström, Uppsala University, Box 523, 751 20 Uppsala (Sweden)
  2. Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala (Sweden)
  3. Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ (United Kingdom)
  4. Department of Chemistry-BMC, Uppsala University, Box 576, 75123 Uppsala (Sweden)
  5. Department of Physics, Chemistry, and Biology, Linköping University, SE-581 83 Linköping (Sweden)
  6. VG Scienta AB, Box 15120, 750 15 Uppsala (Sweden)
Publication Date:
OSTI Identifier:
22308694
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ANODES; CONTROLLED ATMOSPHERES; ELECTRONS; ELECTROSTATIC LENSES; GRAPHENE; NITROGEN; PERFORMANCE; PHOTOELECTRON SPECTROSCOPY; PRESSURE RANGE MEGA PA 10-100; SILVER; SYNCHROTRONS; X RADIATION