skip to main content

Title: Light-induced changes in an alkali metal atomic vapor cell coating studied by X-ray photoelectron spectroscopy

The light-induced desorption of Rb atoms from a paraffin coating is studied with depth-profiling X-ray photoelectron spectroscopy (XPS) using tunable synchrotron radiation. Following Rb exposure, shifts of the C1s signal to higher binding energies, as well as the appearance of lower binding energy components in the O1s region, were observed. These effects were diminished after irradiation with desorbing light. Additionally, following desorbing-light irradiation, changes in the depth-dependent concentration of carbon were observed. These observations offer an insight into the microscopic changes that occur during light-induced atomic desorption and demonstrate the utility of XPS in understanding atom-coating interactions.
Authors:
;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6] ;  [3]
  1. Department of Chemistry, Princeton University, Princeton, New Jersey 08544 (United States)
  2. Department of Chemistry, University of California, Berkeley, California 94720 (United States)
  3. (United States)
  4. Department of Physics, Saint-Petersburg State University, St. Petersburg 198504 (Russian Federation)
  5. Department of Materials Science Engineering, Boise State University, Boise, Idaho 83725 (United States)
  6. Department of Physics, University of California, Berkeley, California 94720-7300 (United States)
Publication Date:
OSTI Identifier:
22218117
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 114; Journal Issue: 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ATOMS; BINDING ENERGY; CARBON; DESORPTION; ELECTRIC UTILITIES; IRRADIATION; PARAFFIN; RUBIDIUM; SYNCHROTRON RADIATION; VAPORS; VISIBLE RADIATION; X-RAY PHOTOELECTRON SPECTROSCOPY