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A versatile photoelectron spectrometer for pressures up to 30 mbar.
Eriksson, Susanna K; Hahlin, Maria; Kahk, Juhan Matthias; Villar-Garcia, Ignacio J; Webb, Matthew J; Grennberg, Helena; Yakimova, Rositza; Rensmo, Håkan; Edström, Kristina; Hagfeldt, Anders; Siegbahn, Hans; Edwards, Mårten O M; Karlsson, Patrik G; Backlund, Klas; Åhlund, John; Payne, David J.
Affiliation
  • Eriksson SK; Department of Chemistry-Ångström, Uppsala University, Box 523, 751 20 Uppsala, Sweden.
  • Hahlin M; Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden.
  • Kahk JM; Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom.
  • Villar-Garcia IJ; Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom.
  • Webb MJ; Department of Chemistry-BMC, Uppsala University, Box 576, 75123 Uppsala, Sweden.
  • Grennberg H; Department of Chemistry-BMC, Uppsala University, Box 576, 75123 Uppsala, Sweden.
  • Yakimova R; Department of Physics, Chemistry, and Biology, Linköping University, SE-581 83 Linköping, Sweden.
  • Rensmo H; Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden.
  • Edström K; Department of Chemistry-Ångström, Uppsala University, Box 523, 751 20 Uppsala, Sweden.
  • Hagfeldt A; Department of Chemistry-Ångström, Uppsala University, Box 523, 751 20 Uppsala, Sweden.
  • Siegbahn H; Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden.
  • Edwards MO; VG Scienta AB, Box 15120, 750 15 Uppsala, Sweden.
  • Karlsson PG; VG Scienta AB, Box 15120, 750 15 Uppsala, Sweden.
  • Backlund K; VG Scienta AB, Box 15120, 750 15 Uppsala, Sweden.
  • Åhlund J; VG Scienta AB, Box 15120, 750 15 Uppsala, Sweden.
  • Payne DJ; Department of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom.
Rev Sci Instrum ; 85(7): 075119, 2014 Jul.
Article in En | MEDLINE | ID: mdl-25085185
ABSTRACT
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.

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2014 Document type: Article Affiliation country: Suecia

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Rev Sci Instrum Year: 2014 Document type: Article Affiliation country: Suecia