AP-XPS system


AP-XPS Capabilities:

  • Analysis pressures from ambient pressure (25 mbar) to ultrahigh vacuum (UHV).
  • Monochromatic Al Kα (hv = 1486.6 eV) for using in UHV and ambient pressure cell.
  • Non-monochromatic Zr Mγ (hv = 151.4 eV)/Ag Lα (hv = 2984.3 eV) for UHV.
  • UV lamp (hv = 21.2/40.8 eV) for UHV.
  • Ion gun for sample cleaning and ion scattering in UHV.
  • Low energy electron flood gun for charge compensation.
  • In-situ sample cooling and heating from 120 to 1073 K (UHV) and 200 to 873 K (25 mbar).
  • Typical sample size < 10x10 mm2 and 1 mm thick.
  • Polar and azimuthal rotation.


AP-STM Capabilities:

  • Imaging from ambient pressure (100 mbar) to UHV.
  • In-situ sample cooling and heating from 220 to 773 K (UHV) and 298 to 523 K (10 mbar).


Preparation Chamber Capabilities:

  • Low energy electron diffraction with Auger electron and electron energy loss spectroscopy capabilities.
  • In-situ sample cooling and heating from 120 to 1073 K (UHV).
  • 4-pocket e-beam evaporator.


Available gases:

  • O2
  • N2
  • Ar
  • He
  • H2
  • H2O
  • D2O
  • CO2
  • Alcohols
  • CH4

Other gases can be considered upon discussion with the APSCL surface scientist.


When publishing research involving experiments conducted at the APSCL, please include the following text in the acknowledgments: “Part of this work was conducted at the Northwest Nanotechnology Infrastructure, a National Nanotechnology Coordinated Infrastructure site at Oregon State University which is supported in part by the National Science Foundation (grant NNCI-1542101) and Oregon State University.” 

If the AP-XPS/AP-STM system was used, please include the following text in the acknowledgments: “Acquisition of the Ambient-Pressure X-ray Photoelectron Spectroscopy/Ambient-Pressure Scanning Tunneling Microscopy system was supported by the National Science Foundation-Major Research Instrumentation program (grant DMR-1429765), the M. J. Murdock Charitable Trust, Oregon BEST, Oregon Nanoscience, and Microtechnologies Institute, and Oregon State University.